Document And Entity Information - USD ($) $ in Billions	12 Months Ended
Document And Entity Information - USD ($) $ in Billions	Dec. 31, 2017	Jun. 30, 2017
Entity Information [Line Items]
Entity Registrant Name	CHARTER COMMUNICATIONS, INC. /MO/
Entity Central Index Key	0001091667
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q4
Trading Symbol	CHTR
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Amendment Flag	false
Entity Public Float		$ 68.0
Class A Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding	238,506,059
Class B Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding	1

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 621	$ 1,535
Accounts receivable, less allowance for doubtful accounts of $113 and $124, respectively	1,635	1,432
Prepaid expenses and other current assets	299	333
Total current assets	2,555	3,300
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net of accumulated depreciation of $18,077 and $11,103, respectively	33,888	32,963
Customer relationships, net	11,951	14,608
Franchises	67,319	67,316
Goodwill	29,554	29,509
Total investment in cable properties, net	142,712	144,396
OTHER NONCURRENT ASSETS	1,356	1,371
Total assets	146,623	149,067
CURRENT LIABILITIES:
Accounts payable and accrued liabilities	9,045	7,544
Current portion of long-term debt	2,045	2,028
Total current liabilities	11,090	9,572
LONG-TERM DEBT	68,186	59,719
DEFERRED INCOME TAXES	17,314	26,665
OTHER LONG-TERM LIABILITIES	2,502	2,745
Preferred stock; $.001 par value; 250 million shares authorized; no shares issued and outstanding	0	0
Additional paid-in capital	35,253	39,413
Retained earnings	3,832	733
Accumulated other comprehensive loss	(1)	(7)
Total Charter shareholders' equity	39,084	40,139
Noncontrolling interests	8,447	10,227
Total shareholders' equity	47,531	50,366
Total liabilities and shareholders' equity	146,623	149,067
Class A Common Stock [Member]
Common stock	0	0
Class B Common Stock [Member]
Common stock	$ 0	$ 0

CONSOLIDATED BALANCE SHEET (PARENTHETICALS) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
CURRENT ASSETS:
Accounts receivable, allowance for doubtful accounts	$ 113	$ 124
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, accumulated depreciation	$ 18,077	$ 11,103
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	250,000,000	250,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Class A Common Stock [Member]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	900,000,000	900,000,000
Common stock, shares issued (in shares)	238,506,059	268,897,792
Common stock, shares outstanding (in shares)	238,506,059	268,897,792
Class B Common Stock [Member]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	1,000	1,000
Common stock, shares issued (in shares)	1	1
Common stock, shares outstanding (in shares)	1	1

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
REVENUES	$ 10,602	$ 10,458	$ 10,357	$ 10,164	$ 10,275	$ 10,037	$ 6,161	$ 2,530	$ 41,581	$ 29,003	$ 9,754
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)									26,541	18,655	6,426
Depreciation and amortization									10,588	6,907	2,125
Other operating expenses, net									346	985	89
Total costs and expenses									37,475	26,547	8,640
Income from operations	1,204	909	1,052	941	1,073	911	170	302	4,106	2,456	1,114
OTHER EXPENSES:
Interest expense, net									(3,090)	(2,499)	(1,306)
Loss on extinguishment of debt									(40)	(111)	(128)
Gain (loss) on financial instruments, net									69	89	(4)
Other pension benefits									1	899	0
Other expense, net									(18)	(14)	(7)
Total other income (expenses)									(3,078)	(1,636)	(1,445)
Income (loss) before income taxes									1,028	820	(331)
Income tax benefit									9,087	2,925	60
Consolidated net income (loss)									10,115	3,745	(271)
Less: Net income attributable to noncontrolling interests									(220)	(223)	0
Net income (loss) attributable to Charter shareholders	$ 9,553	$ 48	$ 139	$ 155	$ 454	$ 189	$ 3,067	$ (188)	$ 9,895	$ 3,522	$ (271)
EARNINGS (LOSS) PER COMMON SHARE ATTRIBUTABLE TO CHARTER SHAREHOLDERS:
Basic (in dollars per share)	$ 39.66	$ 0.19	$ 0.53	$ 0.58	$ 1.69	$ 0.70	$ 16.73	$ (1.86)	$ 38.55	$ 17.05	$ (2.68)
Diluted (in dollars per share)	$ 34.56	$ 0.19	$ 0.52	$ 0.57	$ 1.67	$ 0.69	$ 15.17	$ (1.86)	$ 34.09	$ 15.94	$ (2.68)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	240,833,636	253,923,805	263,460,911	269,004,817	268,584,368	271,263,259	183,362,776	101,552,093	256,720,715	206,539,100	101,152,647
Diluted (in shares)	278,257,245	258,341,851	267,309,261	273,199,509	272,624,270	275,373,202	205,214,266	101,552,093	296,703,956	234,791,439	101,152,647

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Consolidated net income (loss)	$ 10,115	$ 3,745	$ (271)
Net impact of interest rate derivative instruments	5	8	9
Foreign currency translation adjustment	1	(2)	0
Consolidated comprehensive income (loss)	10,121	3,751	(262)
Less: Comprehensive income attributable to noncontrolling interests	(220)	(223)	0
Comprehensive income (loss) attributable to Charter shareholders	$ 9,901	$ 3,528	$ (262)

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Millions	Total	Common Stock [Member] Class A Common Stock [Member]	Common Stock [Member] Class B Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Total Charter Shareholders' Equity (Deficit) [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2014	$ 146	$ 0	$ 0	$ 1,930	$ (1,762)	$ (22)	$ 146	$ 0
Roll Forward of Consolidated Shareholders' Equity (Deficit):
Consolidated net income (loss)	(271)	0	0	0	(271)	0	(271)	0
Stock compensation expense	78	0	0	78	0	0	78	0
Exercise of stock options	30	0	0	30	0	0	30	0
Changes in accumulated other comprehensive loss, net	9	0	0	0	0	9	9
Purchases and retirements of treasury stock	(38)	0	0	(10)	(28)	0	(38)	0
Balance at Dec. 31, 2015	(46)	0	0	2,028	(2,061)	(13)	(46)	0
Roll Forward of Consolidated Shareholders' Equity (Deficit):
Consolidated net income (loss)	3,745	0	0	0	3,522	0	3,522	223
Stock compensation expense	244	0	0	244	0	0	244	0
Accelerated vesting of equity awards	248	0	0	248	0	0	248	0
Settlement of restricted stock units	(59)	0	0	(59)	0	0	(59)	0
Exercise of stock options	86	0	0	86	0	0	86	0
Changes in accumulated other comprehensive loss, net	6	0	0	0	0	6	6
Purchases and retirements of treasury stock	(1,562)	0	0	(834)	(728)	0	(1,562)	0
Issuance of shares to Liberty Broadband for cash	5,000	0	0	5,000	0	0	5,000	0
Converted TWC Awards in the TWC Transaction	514	0	0	514	0	0	514	0
Issuance of shares in TWC Transaction	32,164	0	0	32,164	0	0	32,164	0
Issuance of subsidiary equity in Bright House Transaction	10,134	0	0	0	0	0	0	10,134
Partnership formation and change in ownership, net of tax	225	0	0	(364)	0	0	(364)	589
Purchase of noncontrolling interest, net of tax	(206)	0	0	(19)	0	0	(19)	(187)
Exchange of Charter Holdings units held by A/N, net of tax and TRA effects	(55)	0	0	405	0	0	405	(460)
Distributions to noncontrolling interest	(96)	0	0	0	0	0	0	(96)
Noncontrolling interests assumed in acquisitions	24	0	0	0	0	0	0	24
Balance at Dec. 31, 2016	50,366	0	0	39,413	733	(7)	40,139	10,227
Roll Forward of Consolidated Shareholders' Equity (Deficit):
Consolidated net income (loss)	10,115	0	0	0	9,895	0	9,895	220
Stock compensation expense	261	0	0	261	0	0	261	0
Accelerated vesting of equity awards	49	0	0	49	0	0	49	0
Exercise of stock options	116	0	0	116	0	0	116	0
Changes in accumulated other comprehensive loss, net	6	0	0	0	0	6	6
Cumulative effect of accounting change	140	0	0	9	131	0	140	0
Purchases and retirements of treasury stock	(11,715)	0	0	(4,788)	(6,927)	0	(11,715)	0
Partnership formation and change in ownership, net of tax	(139)	0	0	223	0	0	223	(362)
Purchase of noncontrolling interest, net of tax	(1,482)	0	0	(295)	0	0	(295)	(1,187)
Exchange of Charter Holdings units held by A/N, net of tax and TRA effects	(33)	0	0	265	0	0	265	(298)
Distributions to noncontrolling interest	(153)	0	0	0	0	0	0	(153)
Balance at Dec. 31, 2017	$ 47,531	$ 0	$ 0	$ 35,253	$ 3,832	$ (1)	$ 39,084	$ 8,447

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Consolidated net income (loss)	$ 10,115	$ 3,745	$ (271)
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation and amortization	10,588	6,907	2,125
Stock compensation expense	261	244	78
Accelerated vesting of equity awards	49	248	0
Noncash interest (income) expense	(370)	(256)	28
Other pension benefits	(1)	(899)	0
Loss on extinguishment of debt	40	111	128
(Gain) loss on financial instruments, net	(69)	(89)	4
Deferred Income Tax Expense (Benefit)	(9,116)	(2,958)	(65)
Other, net	16	8	11
Changes in operating assets and liabilities, net of effects from acquisitions and dispositions:
Accounts receivable	(84)	(160)	5
Prepaid expenses and other assets	76	111	(3)
Accounts payable, accrued liabilities and other	449	1,029	319
Net cash flows from operating activities	11,954	8,041	2,359
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(8,681)	(5,325)	(1,840)
Change in accrued expenses related to capital expenditures	820	603	28
Purchases of cable systems, net	(9)	(28,810)	0
Change in restricted cash and cash equivalents	0	22,264	(15,153)
Real estate investments through variable interest entity	(105)	0	0
Other, net	(123)	(22)	(67)
Net cash flows from investing activities	(8,098)	(11,290)	(17,032)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	25,276	12,344	26,045
Repayments of long-term debt	(16,507)	(10,521)	(11,326)
Payments for debt issuance costs	(111)	(284)	(36)
Issuance of equity	0	5,000	0
Purchase of treasury stock	(11,715)	(1,562)	(38)
Proceeds from exercise of stock options and warrants	116	86	30
Settlement of restricted stock units	0	(59)	0
Purchase of noncontrolling interest	(1,665)	(218)	0
Distributions to noncontrolling interest	(153)	(96)	0
Proceeds from termination of interest rate derivatives	0	88	0
Other, net	(11)	1	0
Net cash flows from financing activities	(4,770)	4,779	14,675
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(914)	1,530	2
CASH AND CASH EQUIVALENTS, beginning of period	1,535	5	3
CASH AND CASH EQUIVALENTS, end of period	621	1,535	5
CASH PAID FOR INTEREST	3,421	2,685	1,064
CASH PAID FOR TAXES	$ 41	$ 63	$ 3

Organization and Basis of Presentation (Notes)	12 Months Ended
Organization and Basis of Presentation (Notes)	Dec. 31, 2017
Organization and Basis of Presentation [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Organization Charter Communications, Inc. (together with its controlled subsidiaries, “Charter,” or the “Company”) is the second largest cable operator in the United States and a leading broadband communications company providing video, Internet and voice services to residential and business customers. In addition, the Company sells video and online advertising inventory to local, regional and national advertising customers and fiber-delivered communications and managed information technology solutions to larger enterprise customers. The Company also owns and operates regional sports networks and local sports, news and lifestyle channels and sells security and home management services to the residential marketplace. Charter is a holding company whose principal asset is a controlling equity interest in Charter Communications Holdings, LLC (“Charter Holdings”), an indirect owner of Charter Communications Operating, LLC (“Charter Operating”) under which substantially all of the operations reside. All significant intercompany accounts and transactions among consolidated entities have been eliminated. Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (the “SEC”). The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Areas involving significant judgments and estimates include capitalization of labor and overhead costs; depreciation and amortization costs; purchase accounting valuations of assets and liabilities including, but not limited to, property, plant and equipment, intangibles and goodwill; pension benefits; income taxes; contingencies and programming expense. Actual results could differ from those estimates. Certain prior period amounts have been reclassified to conform with the 2017 presentation.

Summary of Significant Accounting Policies (Notes)

12 Months Ended

Dec. 31, 2017

Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Consolidation

The accompanying consolidated financial statements include the accounts of Charter and all entities in which Charter has a controlling interest, including variable interest entities where Charter is the primary beneficiary. The Company consolidates based upon evaluation of the Company’s power, through voting rights or similar rights, to direct the activities of another entity that most significantly impact the entity’s economic performance; its obligation to absorb the expected losses of the entity; and its right to receive the expected residual returns of the entity. Charter controls and consolidates Charter Holdings. The noncontrolling interest on the Company’s balance sheet primarily represents Advance/Newhouse Partnership's (“A/N's”) minority equity interests in Charter Holdings. See Note 11. All significant inter-company accounts and transactions among consolidated entities have been eliminated in consolidation.

Cash and Cash Equivalents

The Company considers all highly liquid investments with original maturities of three months or less to be cash equivalents. These investments are carried at cost, which approximates market value. Cash and cash equivalents consist primarily of money market funds.

Property, Plant and Equipment

Additions to property, plant and equipment are recorded at cost, including all material, labor and certain indirect costs associated with the construction of cable transmission and distribution facilities. While the Company’s capitalization is based on specific activities, once capitalized, costs are tracked on a composite basis by fixed asset category at the cable system level and not on a specific asset basis. For assets that are sold or retired, the estimated historical cost and related accumulated depreciation is removed. Costs associated with the initial placement of the customer drop to the dwelling and the initial placement of outlets within a dwelling along with the costs associated with the initial deployment of customer premise equipment necessary to provide video, Internet or voice services are capitalized. Costs capitalized include materials, direct labor and certain indirect costs. Indirect costs are associated with the activities of the Company’s personnel who assist in installation activities and consist of compensation and other costs associated with these support functions. Indirect costs primarily include employee benefits and payroll taxes, vehicle and occupancy costs, and the costs of sales and dispatch personnel associated with capitalizable activities. The costs of disconnecting service and removing customer premise equipment from a dwelling and the costs to reconnect a customer drop or to redeploy previously installed customer premise equipment are charged to operating expense as incurred. Costs for repairs and maintenance are charged to operating expense as incurred, while plant and equipment replacement, including replacement of certain components, betterments, including replacement of cable drops and outlets, are capitalized.

Depreciation is recorded using the straight-line composite method over management’s estimate of the useful lives of the related assets as follows:



Cable distribution systems		8-20 years
Customer premise equipment and installations		3-8 years
Vehicles and equipment		4-9 years
Buildings and improvements		15-40 years
Furniture, fixtures and equipment		7-10 years

Asset Retirement Obligations

Certain of the Company’s franchise agreements and leases contain provisions requiring the Company to restore facilities or remove equipment in the event that the franchise or lease agreement is not renewed. The Company expects to continually renew its franchise agreements and therefore cannot reasonably estimate any liabilities associated with such agreements. A remote possibility exists that franchise agreements could be terminated unexpectedly, which could result in the Company incurring significant expense in complying with restoration or removal provisions. The Company does not have any significant liabilities related to asset retirements recorded in its consolidated financial statements.

Valuation of Long-Lived Assets

The Company evaluates the recoverability of long-lived assets (e.g., property, plant and equipment and finite-lived intangible assets) to be held and used when events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Such events or changes in circumstances could include such factors as impairment of the Company’s indefinite life assets, changes in technological advances, fluctuations in the fair value of such assets, adverse changes in relationships with local franchise authorities, adverse changes in market conditions or a deterioration of current or expected future operating results. If a review indicates that the carrying value of such asset is not recoverable from estimated undiscounted cash flows, the carrying value of such asset is reduced to its estimated fair value. While the Company believes that its estimates of future cash flows are reasonable, different assumptions regarding such cash flows could materially affect its evaluations of asset recoverability. No impairments of long-lived assets to be held and used were recorded in 2017, 2016 and 2015.

Other Noncurrent Assets

Other noncurrent assets primarily include investments, trademarks, right-of-entry costs and other intangible assets. The Company accounts for its investments in less than majority owned investees under either the equity or cost method. The Company applies the equity method to investments when it has the ability to exercise significant influence over the operating and financial policies of the investee. The Company’s share of the investee’s earnings (losses) is included in other expense, net in the consolidated statements of operations. The Company monitors its investments for indicators that a decrease in investment value has occurred that is other than temporary. If it has been determined that an investment has sustained an other than temporary decline in value, the investment is written down to fair value with a charge to earnings. Investments acquired are measured at fair value utilizing the acquisition method of accounting. The difference between the fair value and the amount of underlying equity in net assets for most equity method investments is due to previously unrecognized intangible assets at the investee. These amounts are amortized as a component of equity earnings (losses), recorded within other expense, net over the estimated useful life of the asset. Trademarks have been determined to have an indefinite life and are tested annually for impairment. Right-of-entry costs represent upfront costs incurred related to agreements entered into with multiple dwelling units (“MDUs”) including landlords, real estate companies or owners to gain access to a building in order to market and service customers who reside in the building. Right-of-entry costs are deferred and amortized to amortization expense over the term of the agreement.

Revenue Recognition

Revenues from residential and commercial video, Internet and voice services are recognized when the related services are provided. Advertising sales are recognized at estimated realizable values in the period that the advertisements are broadcast. In some cases, the Company coordinates the advertising sales efforts of other cable operators in a certain market and remits amounts received from customers less an agreed-upon percentage to such cable operator. For those arrangements in which the Company acts as a principal, the Company records the revenues earned from the advertising customer on a gross basis and the amount remitted to the cable operator as an operating expense.

Fees imposed on the Company by various governmental authorities are passed through on a monthly basis to the Company’s customers and are periodically remitted to authorities. Fees of $961 million, $711 million and $255 million for the years ended December 31, 2017, 2016 and 2015, respectively, are reported in video, voice and commercial revenues, on a gross basis with a corresponding operating expense because the Company is acting as a principal. Other taxes, such as sales taxes imposed on the Company’s customers, collected and remitted to state and local authorities, are recorded on a net basis because the Company is acting as an agent in such situation.

The Company’s revenues by product line are as follows:



	Year Ended December 31,
	2017		2016		2015

Video	$	16,641	$	11,967	$	4,587
Internet	14,105		9,272		3,003
Voice	2,542		2,005		539
Residential revenue	33,288		23,244		8,129

Small and medium business	3,686		2,480		764
Enterprise	2,210		1,429		363
Commercial revenue	5,896		3,909		1,127

Advertising sales	1,510		1,235		309
Other	887		615		189
	$	41,581	$	29,003	$	9,754

Programming Costs

The Company has various contracts to obtain video programming from vendors whose compensation is typically based on a flat fee per customer. The cost of the right to exhibit network programming under such arrangements is recorded in operating expenses in the month the programming is available for exhibition. Programming costs are paid each month based on calculations performed by the Company and are subject to periodic audits performed by the programmers. Certain programming contracts contain cash and non-cash consideration from the programmers. If consideration received does not relate to a separate product or service, the Company recognizes the consideration on a straight-line basis over the life of the programming agreement as a reduction of programming expense. Programming costs included in the statements of operations were $10.6 billion, $7.0 billion and $2.7 billion for the years ended December 31, 2017, 2016 and 2015, respectively.

Advertising Costs

Advertising costs associated with marketing the Company’s products and services are generally expensed as costs are incurred.

Multiple-Element Transactions

In the normal course of business, the Company enters into multiple-element transactions where it is simultaneously both a customer and a vendor with the same counterparty or in which it purchases multiple products and/or services, or settles outstanding items contemporaneous with the purchase of a product or service from a single counterparty. Transactions, although negotiated contemporaneously, may be documented in one or more contracts. The Company’s policy for accounting for each transaction negotiated contemporaneously is to record each element of the transaction based on the respective estimated fair values of the products or services purchased and the products or services sold. In determining the fair value of the respective elements, the Company refers to quoted market prices (where available), historical transactions or comparable cash transactions. Cash consideration received from a vendor is recorded as a reduction in the price of the vendor’s product unless (i) the consideration is for the reimbursement of a specific, incremental, identifiable cost incurred, in which case the cash consideration received would be recorded as a reduction in such cost (e.g., marketing costs), or (ii) an identifiable benefit in exchange for the consideration is provided, in which case revenue would be recognized for this element.

Stock-Based Compensation

Restricted stock, restricted stock units, stock options as well as equity awards with market conditions are measured at the grant date fair value and amortized to stock compensation expense over the requisite service period. The fair value of options is estimated on the date of grant using the Black-Scholes option-pricing model and the fair value of equity awards with market conditions is estimated on the date of grant using Monte Carlo simulations. The grant date weighted average assumptions used during the years ended December 31, 2017, 2016 and 2015, respectively, were: risk-free interest rate of 1.8%, 1.7% and 1.5%; expected volatility of 25.0%, 25.4% and 34.7%; and expected lives of 4.6 years, 1.3 years and 6.5 years. Weighted average assumptions for 2016 include the assumptions used for the converted TWC awards (see Note 16). The Company’s volatility assumptions represent management’s best estimate and were based on historical volatility of Legacy Charter and Legacy TWC. See Note 3. Expected lives were estimated using historical exercise data. The valuations assume no dividends are paid.

Pension Plans

The Company sponsors the TWC Pension Plan, TWC Union Pension Plan and TWC Excess Pension Plan (as defined in Note 21). Pension benefits are based on formulas that reflect the employees’ years of service and compensation during their employment period. Actuarial gains or losses are changes in the amount of either the benefit obligation or the fair value of plan assets resulting from experience different from that assumed or from changes in assumptions. The Company has elected to follow a mark-to-market pension accounting policy for recording the actuarial gains or losses annually during the fourth quarter, or earlier if a remeasurement event occurs during an interim period.

Income Taxes

The Company recognizes deferred tax assets and liabilities for temporary differences between the financial reporting basis and the tax basis of the Company’s assets and liabilities and expected benefits of utilizing loss carryforwards. Since substantially all the Company’s operations are held through its partnership interest in Charter Holdings, the primary deferred tax component recorded in the consolidated balance sheet relates to the excess financial reporting outside basis, excluding amounts attributable to nondeductible goodwill, over Charter’s tax basis in its investment in the partnership. Valuation allowances are established when management determines that it is more likely than not that some portion or the entire deferred tax asset will not be realized. The impact on deferred taxes of changes in tax rates and tax law, if any, applied to the years during which temporary differences are expected to be settled, are reflected in the consolidated financial statements in the period of enactment. In determining the Company’s tax provision for financial reporting purposes, the Company establishes a reserve for uncertain tax positions unless such positions are determined to be “more likely than not” of being sustained upon examination, based on their technical merits. There is considerable judgment involved in making such a determination. Interest and penalties are recognized on uncertain income tax positions as part of the income tax provision. See Note 17.

Segments

The Company’s operations are managed and reported to its Chief Executive Officer (“CEO”), the Company’s chief operating decision maker, on a consolidated basis. The CEO assesses performance and allocates resources based on the consolidated results of operations. Under this organizational and reporting structure, the Company has one reportable segment, cable services.

Mergers and Acquisitions (Notes)

12 Months Ended

Dec. 31, 2017

Mergers and Acquisitions [Abstract]

Mergers and Acquisitions

The Transactions

On May 18, 2016, the transactions contemplated by the Agreement and Plan of Mergers dated as of May 23, 2015 (the “Merger Agreement”), by and among Time Warner Cable Inc. (“Legacy TWC”), Charter Communications, Inc. prior to the closing of the Merger Agreement (“Legacy Charter”), CCH I, LLC, previously a wholly owned subsidiary of Legacy Charter and certain other subsidiaries of CCH I, LLC were completed (the “TWC Transaction,” and together with the Bright House Transaction described below, the “Transactions”). As a result of the TWC Transaction, CCH I, LLC became the new public parent company that holds the operations of the combined companies and was renamed Charter Communications, Inc. As of the date of completion of the Transactions, the total value of the TWC Transaction was approximately $85 billion, including cash, equity and Legacy TWC assumed debt.

Also, on May 18, 2016, Legacy Charter and A/N, the former parent of Bright House Networks, LLC (“Legacy Bright House”), completed their previously announced transaction, pursuant to a definitive Contribution Agreement (the “Contribution Agreement”), under which Charter acquired Legacy Bright House (the “Bright House Transaction”) for approximately $12.2 billion consisting of cash and convertible preferred units of Charter Holdings and common units of Charter Holdings. Pursuant to the Bright House Transaction, Charter became the owner of the membership interests in Legacy Bright House and the other assets primarily related to Legacy Bright House (other than certain excluded assets and liabilities and non-operating cash).

In connection with the TWC Transaction, Liberty Broadband purchased shares of Charter Class A common stock to partially finance the cash portion of the TWC Transaction consideration, and in connection with the Bright House Transaction, Liberty Broadband purchased shares of Charter Class A common stock (the “Liberty Transaction”).

Acquisition Accounting

Charter applied acquisition accounting to the Transactions. The total purchase price was allocated to the identifiable tangible and intangible assets acquired and the liabilities assumed based on their estimated fair values. The fair values were primarily based on third-party valuations using assumptions developed by management and other information compiled by management including, but not limited to, future expected cash flows. The excess of the purchase price over those fair values was recorded as goodwill.

The tables below present the final allocation of the purchase price to the assets acquired and liabilities assumed in the Transactions.

TWC Allocation of Purchase Price



Cash and cash equivalents	$	1,058
Current assets	1,417
Property, plant and equipment	21,413
Customer relationships	13,460
Franchises	54,085
Goodwill	28,337
Other noncurrent assets	1,040
Accounts payable and accrued liabilities	(4,107		)
Debt	(24,900		)
Deferred income taxes	(28,120		)
Other long-term liabilities	(3,162		)
Noncontrolling interests	(4		)
	$	60,517

Subsequent to December 31, 2016 and through the end of the measurement period, the Company made adjustments to the fair value of certain assets acquired and liabilities assumed in the TWC Transaction, including a decrease to working capital of $73 million and a decrease of $28 million to deferred income tax liabilities, resulting in a net increase of $45 million to goodwill.

Bright House Allocation of Purchase Price



Current assets	$	131
Property, plant and equipment	2,884
Customer relationships	2,150
Franchises	7,225
Goodwill	44
Other noncurrent assets	86
Accounts payable and accrued liabilities	(330		)
Other long-term liabilities	(12		)
Noncontrolling interests	(22		)
	$	12,156

Selected Pro Forma Financial Information

The following unaudited pro forma financial information of the Company is based on the historical consolidated financial statements of Legacy Charter, Legacy TWC and Legacy Bright House and is intended to provide information about how the Transactions and related financing may have affected the Company’s historical consolidated financial statements if they had closed as of January 1, 2015. The pro forma financial information below is based on available information and assumptions that the Company believes are reasonable. The pro forma financial information is for illustrative and informational purposes only and is not intended to represent or be indicative of what the Company’s financial condition or results of operations would have been had the transactions described above occurred on the date indicated. The pro forma financial information also should not be considered representative of the Company’s future financial condition or results of operations.



	Year Ended December 31,
	2016		2015
Revenues	$	40,023	$	37,394
Net income attributable to Charter shareholders	$	1,070	$	159
Earnings per common share attributable to Charter shareholders:
Basic	$	3.97	$	0.59
Diluted	$	3.91	$	0.58

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1497-128463

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Property, Plant and Equipment (Notes)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, plant and equipment consists of the following as of December 31, 2017 and 2016:



	December 31,
	2017			2016
Cable distribution systems	$	26,104		$	23,317
Customer premise equipment and installations	15,909			12,867
Vehicles and equipment	1,501			1,212
Buildings and improvements	3,901			3,426
Furniture, fixtures and equipment	4,550			3,244
	51,965			44,066
Less: accumulated depreciation	(18,077		)	(11,103		)
	$	33,888		$	32,963

The Company periodically evaluates the estimated useful lives used to depreciate its assets and the estimated amount of assets that will be abandoned or have minimal use in the future. A significant change in assumptions about the extent or timing of future asset retirements, or in the Company’s use of new technology and upgrade programs, could materially affect future depreciation expense.

Depreciation expense for the years ended December 31, 2017, 2016 and 2015 was $7.8 billion, $5.0 billion, and $1.9 billion, respectively.

Franchises, Goodwill and Other Intangible Assets (Notes)

12 Months Ended

Dec. 31, 2017

Franchises, Goodwill and Other Intangible Assets [Abstract]

Franchises, Goodwill and Other Intangible Assets

Franchise rights represent the value attributed to agreements or authorizations with local and state authorities that allow access to homes in cable service areas. For valuation purposes, they are defined as the future economic benefits of the right to solicit and service potential customers (customer marketing rights), and the right to deploy and market new services to potential customers (service marketing rights).

Management estimates the fair value of franchise rights at the date of acquisition and determines if the franchise has a finite life or an indefinite life. The Company has concluded that all of its franchises qualify for indefinite life treatment given that there are no legal, regulatory, contractual, competitive, economic or other factors which limit the period over which these rights will contribute to the Company's cash flows. The Company reassesses this determination periodically or whenever events or substantive changes in circumstances occur.

All franchises are tested for impairment annually or more frequently as warranted by events or changes in circumstances. Franchise assets are aggregated into essentially inseparable units of accounting to conduct valuations. The units of accounting generally represent geographical clustering of the Company's cable systems into groups. The Company assesses qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that an indefinite lived intangible asset has been impaired. If, after this optional qualitative assessment, the Company determines that it is not more likely than not that an indefinite lived intangible asset has been impaired, then no further quantitative testing is necessary. In completing the qualitative impairment testing, the Company evaluates a multitude of factors that affect the fair value of our franchise assets. Examples of such factors include environmental and competitive changes within our operating footprint, actual and projected operating performance, the consistency of our operating margins, equity and debt market trends, including changes in our market capitalization, and changes in our regulatory and political landscape, among other factors. The Company performed a qualitative assessment in 2017, which also included consideration of a fair value appraisal performed for tax purposes in the beginning of 2017 as of a December 31, 2016 valuation date (the "Appraisal"). After consideration of the qualitative factors in 2017, including the results of the Appraisal, the Company concluded that it is more likely than not that the fair value of the franchise assets in each unit of accounting exceeds the carrying value of such assets and therefore did not perform a quantitative analysis at the assessment date. Periodically, the Company will elect to perform a quantitative analysis for impairment testing. If the Company elects or is required to perform a quantitative analysis to test its franchise assets for impairment, the methodology described below is utilized.

If a quantitative analysis is performed, the estimated fair value of franchises is determined utilizing an income approach model based on the present value of the estimated discrete future cash flows attributable to each of the intangible assets identified assuming a discount rate. The fair value of franchises is determined based on estimated discrete discounted future cash flows using assumptions consistent with internal forecasts. The franchise after-tax cash flow is calculated as the after-tax cash flow generated by the potential customers obtained. The sum of the present value of the franchises’ after-tax cash flow in years 1 through 10 and the continuing value of the after-tax cash flow beyond year 10 yields the fair value of the franchises.

This approach makes use of unobservable factors such as projected revenues, expenses, capital expenditures, customer trends, and a discount rate applied to the estimated cash flows. The determination of the franchise discount rate is derived from the Company’s weighted average cost of capital, which uses a market participant’s cost of equity and after-tax cost of debt and reflects the risks inherent in the cash flows. The Company estimates discounted future cash flows using reasonable and appropriate assumptions including among others, penetration rates for video, Internet, and voice; revenue growth rates; operating margins; and capital expenditures. The assumptions are based on the Company’s and its peers’ historical operating performance adjusted for current and expected competitive and economic factors surrounding the cable industry. The estimates and assumptions made in the Company’s valuations are inherently subject to significant uncertainties, many of which are beyond its control, and there is no assurance that these results can be achieved. The primary assumptions for which there is a reasonable possibility of the occurrence of a variation that would significantly affect the measurement value include the assumptions regarding revenue growth, programming expense growth rates, the amount and timing of capital expenditures, actual customer trends and the discount rate utilized.

The fair value of goodwill is determined using both an income approach and market approach. The Company’s income approach model used for its goodwill valuation is consistent with that used for its franchise valuation noted above except that cash flows from the entire business enterprise are used for the goodwill valuation. The Company’s market approach model estimates the fair value of the reporting unit based on market prices in actual precedent transactions of similar businesses and market valuations of guideline public companies. Goodwill is tested for impairment as of November 30 of each year, or more frequently as warranted by events or changes in circumstances. Accounting guidance also permits an optional qualitative assessment for goodwill to determine whether it is more likely than not that the carrying value of a reporting unit exceeds its fair value. If, after this qualitative assessment, the Company determines that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount then no further quantitative testing would be necessary. If the Company elects or is required to perform the two-step test under the accounting guidance, the first step involves a comparison of the estimated fair value of the reporting unit to its carrying amount. If the estimated fair value of the reporting unit exceeds its carrying amount, goodwill of the reporting unit is not considered impaired and the second step of the goodwill impairment is not necessary. If the carrying amount of a reporting unit exceeds its estimated fair value, then the second step of the goodwill impairment test must be performed, and a comparison of the implied fair value of the reporting unit’s goodwill is compared to its carrying amount to determine the amount of impairment, if any. As with the Company’s franchise impairment testing, in 2017 the Company elected to perform a qualitative goodwill impairment assessment, which incorporated the results of the Appraisal and consideration of the same qualitative factors relevant to the Company's franchise impairment testing. As a result of that assessment, the Company concluded that goodwill is not impaired.

Customer relationships are recorded at fair value as of the date acquired less accumulated amortization. Customer relationships, for valuation purposes, represent the value of the business relationship with existing customers, and are calculated by projecting the discrete future after-tax cash flows from these customers, including the right to deploy and market additional services to these customers. The present value of these after-tax cash flows yields the fair value of the customer relationships. The use of different valuation assumptions or definitions of franchises or customer relationships, such as our inclusion of the value of selling additional services to our current customers within customer relationships versus franchises, could significantly impact our valuations and any resulting impairment. Customer relationships are amortized on an accelerated sum of years’ digits method over useful lives of 8-15 years based on the period over which current customers are expected to generate cash flows. The Company periodically evaluates the remaining useful lives of its customer relationships to determine whether events or circumstances warrant revision to the remaining periods of amortization. Customer relationships are evaluated for impairment upon the occurrence of events or changes in circumstances indicating that the carrying amount of an asset may not be recoverable. Customer relationships are deemed impaired when the carrying value exceeds the projected undiscounted future cash flows associated with the customer relationships. No impairment of customer relationships was recorded in the years ended December 31, 2017, 2016 or 2015.

The fair value of trademarks is determined using the relief-from-royalty method, a variation of the income approach, which applies a fair royalty rate to estimated revenue derived under the Company’s trademarks. The fair value of the intangible is estimated to be the present value of the royalty saved because the Company owns the trademarks. Royalty rates are estimated based on a review of market royalty rates in the communications and entertainment industries. As the Company expects to continue to use each trademark indefinitely, trademarks have been assigned an indefinite life and are tested annually for impairment using either a qualitative analysis or quantitative analysis as elected by management. As with the Company’s franchise impairment testing, in 2017 the Company elected to perform a qualitative trademark impairment assessment and concluded that trademarks are not impaired.

As of December 31, 2017 and 2016, indefinite-lived and finite-lived intangible assets are presented in the following table:



	December 31,
	2017							2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Indefinite-lived intangible assets:
Franchises	$	67,319	$	—		$	67,319	$	67,316	$	—		$	67,316
Goodwill	29,554		—			29,554		29,509		—			29,509
Trademarks	159		—			159		159		—			159
Other intangible assets	—		—			—		4		—			4
	$	97,032	$	—		$	97,032	$	96,988	$	—		$	96,988

Finite-lived intangible assets:
Customer relationships	$	18,229	$	(6,278	)	$	11,951	$	18,226	$	(3,618	)	$	14,608
Other intangible assets	731		(201		)	530		615		(128		)	487
	$	18,960	$	(6,479	)	$	12,481	$	18,841	$	(3,746	)	$	15,095

Other intangible assets consist primarily of right-of-entry costs. Amortization expense related to customer relationships and other intangible assets for the years ended December 31, 2017, 2016 and 2015 was $2.7 billion, $1.9 billion and $271 million, respectively.

The Company expects amortization expense on its finite-lived intangible assets will be as follows.



2018	$	2,478
2019	2,195
2020	1,903
2021	1,619
2022	1,342
Thereafter	2,944
	$	12,481

Actual amortization expense in future periods could differ from these estimates as a result of new intangible asset acquisitions or divestitures, changes in useful lives, impairments, adoption of new accounting standards and other relevant factors.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Investments (Notes)

12 Months Ended

Dec. 31, 2017

Investments [Abstract]

Investments

Investments consisted of the following as of December 31, 2017 and 2016:



	December 31,
	2017		2016
Equity-method investments	482		519
Other investments	15		11
Total investments	$	497	$	530

The Company's investments include Active Video Networks ("AVN" - 35.0% owned) Sterling Entertainment Enterprises, LLC (“Sterling” - d/b/a SportsNet New York - 26.8% owned), MLB Network, LLC (“MLB Network” - 6.4% owned), iN Demand L.L.C. (“iN Demand” - 39.5% owned) and National Cable Communications LLC (“NCC” - 20.0% owned), among other less significant equity-method and cost-method investments. Sterling and MLB Network are primarily engaged in the development of sports programming services. iN Demand provides programming on a video on demand, pay-per-view and subscription basis. NCC represents multi-video program distributors to advertisers.

The Company's equity-method investments balances reflected in the table above includes differences between the acquisition date fair value of certain investments acquired and the underlying equity in the net assets of the investee, referred to as a basis difference. This basis difference is amortized as a component of equity earnings. The remaining unamortized basis difference was $407 million and $436 million as of December 31, 2017 and 2016, respectively.

The Company applies the equity method of accounting to these and other less significant equity-method investments, all of which are recorded in other noncurrent assets in the consolidated balance sheets as of December 31, 2017 and 2016. For the years ended December 31, 2017, 2016 and 2015, net losses from equity-method investments were $18 million, $14 million and $7 million, respectively, which were recorded in other expense, net in the consolidated statements of operations.

Real estate investments through variable interest entities ("VIEs") on the consolidated statement of cash flows for the year ended December 31, 2017 represents the acquisition of a defaulted mortgage loan issued to a single-asset, special purpose entity real estate lessor (the "SPE"). As the Company has determined the SPE is a VIE of which it is the primary beneficiary, the Company has consolidated the assets and liabilities of the SPE in its consolidated balance sheet as of December 31, 2017, which are primarily composed of the building securing the mortgage loan.

Long-Term Debt (Notes)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Long-Term Debt

Long-term debt consists of the following as of December 31, 2017 and 2016:



	December 31,
	2017				2016
	Principal Amount		Accreted Value		Principal Amount		Accreted Value
CCO Holdings, LLC:
5.250% senior notes due March 15, 2021	$	500	$	497	$	500	$	496
6.625% senior notes due January 31, 2022	—		—		750		741
5.250% senior notes due September 30, 2022	1,250		1,235		1,250		1,232
5.125% senior notes due February 15, 2023	1,000		993		1,000		992



4.000% senior notes due March 1, 2023	500			495			—			—
5.125% senior notes due May 1, 2023	1,150			1,143			1,150			1,141
5.750% senior notes due September 1, 2023	500			496			500			496
5.750% senior notes due January 15, 2024	1,000			992			1,000			991
5.875% senior notes due April 1, 2024	1,700			1,687			1,700			1,685
5.375% senior notes due May 1, 2025	750			745			750			744
5.750% senior notes due February 15, 2026	2,500			2,464			2,500			2,460
5.500% senior notes due May 1, 2026	1,500			1,489			1,500			1,487
5.875% senior notes due May 1, 2027	800			794			800			794
5.125% senior notes due May 1, 2027	3,250			3,216			—			—
5.000% senior notes due February 1, 2028	2,500			2,462			—			—
Charter Communications Operating, LLC:
3.579% senior notes due July 23, 2020	2,000			1,988			2,000			1,983
4.464% senior notes due July 23, 2022	3,000			2,977			3,000			2,973
4.908% senior notes due July 23, 2025	4,500			4,462			4,500			4,458
3.750% senior notes due February 15, 2028	1,000			985			—			—
4.200% senior notes due March 15, 2028	1,250			1,238			—			—
6.384% senior notes due October 23, 2035	2,000			1,981			2,000			1,980
6.484% senior notes due October 23, 2045	3,500			3,466			3,500			3,466
5.375% senior notes due May 1, 2047	2,500			2,506			—			—
6.834% senior notes due October 23, 2055	500			495			500			495
Credit facilities	9,479			9,387			8,916			8,814
Time Warner Cable, LLC:
5.850% senior notes due May 1, 2017	—			—			2,000			2,028
6.750% senior notes due July 1, 2018	2,000			2,045			2,000			2,135
8.750% senior notes due February 14, 2019	1,250			1,337			1,250			1,412
8.250% senior notes due April 1, 2019	2,000			2,148			2,000			2,264
5.000% senior notes due February 1, 2020	1,500			1,579			1,500			1,615
4.125% senior notes due February 15, 2021	700			730			700			739
4.000% senior notes due September 1, 2021	1,000			1,045			1,000			1,056
5.750% sterling senior notes due June 2, 2031 ^(a)	845			912			770			834
6.550% senior debentures due May 1, 2037	1,500			1,686			1,500			1,691
7.300% senior debentures due July 1, 2038	1,500			1,788			1,500			1,795
6.750% senior debentures due June 15, 2039	1,500			1,724			1,500			1,730
5.875% senior debentures due November 15, 2040	1,200			1,258			1,200			1,259
5.500% senior debentures due September 1, 2041	1,250			1,258			1,250			1,258
5.250% sterling senior notes due July 15, 2042 ^(b)	879			847			800			771
4.500% senior debentures due September 15, 2042	1,250			1,137			1,250			1,135
Time Warner Cable Enterprises LLC:
8.375% senior debentures due March 15, 2023	1,000			1,232			1,000			1,273
8.375% senior debentures due July 15, 2033	1,000			1,312			1,000			1,324
Total debt	69,003			70,231			60,036			61,747
Less current portion:
5.850% senior notes due May 1, 2017	—			—			(2,000		)	(2,028		)
6.750% senior notes due July 1, 2018	(2,000		)	(2,045		)	—			—
Long-term debt	$	67,003		$	68,186		$	58,036		$	59,719


^(a)	Principal amount includes £625 million valued at $845 million and $770 million as of December 31, 2017 and December 31, 2016, respectively, using the exchange rate at that date.


^(b)	Principal amount includes £650 million valued at $879 million and $800 million as of December 31, 2017 and December 31, 2016, respectively, using the exchange rate at that date.

The accreted values presented in the table above represent the principal amount of the debt less the original issue discount at the time of sale, deferred financing costs, and, in regards to the Legacy TWC debt assumed, fair value premium adjustments as a result of applying acquisition accounting plus the accretion of those amounts to the balance sheet date. However, the amount that is currently payable if the debt becomes immediately due is equal to the principal amount of the debt. In regards to the fixed-rate British pound sterling denominated notes (the “Sterling Notes”), the principal amount of the debt and any premium or discount is remeasured into US dollars as of each balance sheet date. See Note 12. The Company has availability under the Charter Operating credit facilities of approximately $3.6 billion as of December 31, 2017.

During 2015, CCO Holdings and CCO Holdings Capital closed on transactions in which they issued $2.7 billion aggregate principal amount of senior unsecured notes with varying maturities and interest rates. The net proceeds were used to repurchase $2.5 billion of various series of senior unsecured notes, as well as for general corporate purposes. These debt repurchases resulted in a loss on extinguishment of debt of $123 million for the year ended December 31, 2015. The Company also recorded a loss on extinguishment of debt of approximately $5 million for the year ended December 31, 2015 as a result of the repayment of debt upon termination of the proposed transactions with Comcast Corporation.

During 2016, CCO Holdings and CCO Holdings Capital closed on transactions in which they issued $3.2 billion aggregate principal amount of senior unsecured notes with varying maturities and interest rates. The net proceeds were used to repurchase $2.9 billion of various series of senior unsecured notes, as well as for general corporate purposes. These debt repurchases resulted in a loss on extinguishment of debt of $110 million for the year ended December 31, 2016.

During 2016, Charter Operating entered into an amendment to its Amended and Restated Credit Agreement dated May 18, 2016 (the “Credit Agreement”) decreasing the applicable LIBOR margin, eliminating the LIBOR floor and extending the maturities on certain term loans. The Company recorded a loss on extinguishment of debt of $1 million for the year ended December 31, 2016 related to these transactions.

During 2017, CCO Holdings and CCO Holdings Capital closed on transactions in which they issued $6.25 billion aggregate principal amount of senior unsecured notes with varying maturities and interest rates. The net proceeds were used to fund buybacks of Charter Class A common stock or Charter Holdings common units, repurchase $2.75 billion of various series of senior secured and unsecured notes, as well as for general corporate purposes. These debt repurchases resulted in a loss on extinguishment of debt of $34 million for the year ended December 31, 2017.

During 2017, Charter Operating and Charter Communications Operating Capital Corp. closed on transactions in which they issued $4.75 billion aggregate principal amount of senior secured notes with varying maturities and interest rates. The net proceeds were used to fund buybacks of Charter Class A common stock or Charter Holdings common units, as well as for general corporate purposes.

During 2017, Charter Operating also entered into amendments to its Credit Agreement decreasing the applicable LIBOR margins, eliminating the LIBOR floor, increasing the capacity of the revolving loan, extending the maturities and repaying the E, F, H and I term loans with the issuance of a new term B loan. The Company recorded a loss on extinguishment of debt of $6 million for the year ended December 31, 2017 related to these transactions. See "Charter Operating Credit Facilities" below for details on the Company's term loans as of December 31, 2017.

CCO Holdings Notes

The CCO Holdings notes are senior debt obligations of CCO Holdings and CCO Holdings Capital and rank equally with all other current and future unsecured, unsubordinated obligations of CCO Holdings and CCO Holdings Capital. They are structurally subordinated to all obligations of subsidiaries of CCO Holdings.

CCO Holdings may redeem some or all of the CCO Holdings notes at any time at a premium. The optional redemption price declines to 100% of the respective series’ principal amount, plus accrued and unpaid interest, if any, on or after varying dates in 2019 through 2025.

In addition, at any time prior to varying dates in 2018 through 2020, CCO Holdings may redeem up to 40% of the aggregate principal amount of certain notes at a premium plus accrued and unpaid interest to the redemption date, with the net cash proceeds of one or more equity offerings (as defined in the indenture); provided that certain conditions are met. In the event of specified change of control events, CCO Holdings must offer to purchase the outstanding CCO Holdings notes from the holders at a purchase price equal to 101% of the total principal amount of the notes, plus any accrued and unpaid interest.

High-Yield Restrictive Covenants; Limitation on Indebtedness.

The indentures governing the CCO Holdings notes contain certain covenants that restrict the ability of CCO Holdings, CCO Holdings Capital and all of their restricted subsidiaries to:


•	incur additional debt;


•	pay dividends on equity or repurchase equity;


•	make investments;


•	sell all or substantially all of their assets or merge with or into other companies;


•	sell assets;


•	in the case of restricted subsidiaries, create or permit to exist dividend or payment restrictions with respect to CCO Holdings, guarantee their parent companies debt, or issue specified equity interests;


•	engage in certain transactions with affiliates; and


•	grant liens.

The above limitations in certain circumstances regarding incurrence of debt, payment of dividends and making investments contained in the indentures of CCO Holdings permit CCO Holdings and its restricted subsidiaries to perform the above, so long as, after giving pro forma effect to the above, the leverage ratio would be below a specified level for the issuer. The leverage ratio under the indentures is 6.0 to 1.0.

Charter Operating Notes

The Charter Operating notes are guaranteed by CCO Holdings and substantially all of the operating subsidiaries of Charter Operating. In addition, the Charter Operating notes are secured by a perfected first priority security interest in substantially all of the assets of Charter Operating to the extent such liens can be perfected under the Uniform Commercial Code by the filing of a financing statement and the liens rank equally with the liens on the collateral securing obligations under the Charter Operating credit facilities. Charter Operating may redeem some or all of the Charter Operating notes at any time at a premium.

The Charter Operating notes are subject to the terms and conditions of the indenture governing the Charter Operating notes. The Charter Operating notes contain customary representations and warranties and affirmative covenants with limited negative covenants. The Charter Operating indenture also contains customary events of default.

Charter Operating Credit Facilities

The Charter Operating credit facilities have an outstanding principal amount of $9.5 billion at December 31, 2017 as follows:


•	term loan A-2 with a remaining principal amount of $2.9 billion, which is repayable in quarterly installments and aggregating $144 million in each loan year, with the remaining balance due at final maturity on March 31, 2023. Pricing on term loan A-2 is LIBOR plus 1.50%;


•	term loan B with a remaining principal amount of approximately $6.4 billion, which is repayable in equal quarterly installments and aggregating $64 million in each loan year, with the remaining balance due at final maturity on April 30, 2025. Pricing on term loan B is LIBOR plus 2.00%; and

•

revolving loan with an outstanding balance of $254 million at December 31, 2017 and allowing for borrowings of up to $4.0 billion, maturing on March 31, 2023. Pricing on the revolving loan is LIBOR plus 1.50% with a commitment fee of 0.30%. As of December 31, 2017, $137 million of the revolving loan was utilized to collateralize a like principal amount of letters of credit out of $291 million of letters of credit issued on the Company’s behalf.

Amounts outstanding under the Charter Operating credit facilities bear interest, at Charter Operating’s election, at a base rate or LIBOR (1.56% and 0.77% as of December 31, 2017 and December 31, 2016, respectively), as defined, plus an applicable margin.

The Charter Operating credit facilities also allow us to enter into incremental term loans in the future, with amortization as set forth in the notices establishing such term loans. Although the Charter Operating credit facilities allow for the incurrence of a certain amount of incremental term loans subject to pro forma compliance with its financial maintenance covenants, no assurance can be given that the Company could obtain additional incremental term loans in the future if Charter Operating sought to do so or what amount of incremental term loans would be allowable at any given time under the terms of the Charter Operating credit facilities.

The obligations of Charter Operating under the Charter Operating credit facilities are guaranteed by CCO Holdings and substantially all of the operating subsidiaries of Charter Operating. The obligations are also secured by (i) a lien on substantially all of the assets of Charter Operating and its subsidiaries, to the extent such lien can be perfected under the Uniform Commercial Code by the filing of a financing statement, and (ii) a pledge by CCO Holdings of the equity interests owned by it in any of Charter Operating’s subsidiaries, as well as intercompany obligations owing to it by any of such entities.

Restrictive Covenants

The Charter Operating credit facilities contain representations and warranties, and affirmative and negative covenants customary for financings of this type. The financial covenants measure performance against standards set for leverage to be tested as of the end of each quarter. The Charter Operating credit facilities contain provisions requiring mandatory loan prepayments under specific circumstances, including in connection with certain sales of assets, so long as the proceeds have not been reinvested in the business. Additionally, the Charter Operating credit facilities provisions contain an allowance for restricted payments with certain limitations. The Charter Operating credit facilities permit Charter Operating and its subsidiaries to make distributions to pay interest on the currently outstanding subordinated and parent company indebtedness, provided that, among other things, no default has occurred and is continuing under the Charter Operating credit facilities. The Charter Operating credit facilities also contain customary events of default.

TWC, LLC Senior Notes and Debentures

The TWC, LLC senior notes and debentures are guaranteed by CCO Holdings and substantially all of the operating subsidiaries of Charter Operating and rank equally with the liens on the collateral securing obligations under the Charter Operating notes and credit facilities. Interest on each series of TWC, LLC senior notes and debentures is payable semi-annually (with the exception of the Sterling Notes, which is payable annually) in arrears.

The TWC, LLC indenture contains customary covenants relating to restrictions on the ability of TWC, LLC or any material subsidiary to create liens and on the ability of TWC, LLC and Time Warner Cable Enterprises LLC ("TWCE") to consolidate, merge or convey or transfer substantially all of their assets. The TWC, LLC indenture also contains customary events of default.

The TWC, LLC senior notes and debentures may be redeemed in whole or in part at any time at TWC, LLC’s option at a redemption price equal to the greater of (i) all of the applicable principal amount being redeemed and (ii) the sum of the present values of the remaining scheduled payments on the applicable TWC, LLC senior notes and debentures discounted to the redemption date on a semi-annual basis (with the exception of the Sterling Notes, which are on an annual basis), at a comparable government bond rate plus a designated number of basis points as further described in the indenture and the applicable note or debenture, plus, in each case, accrued but unpaid interest to, but not including, the redemption date.

The Company may offer to redeem all, but not less than all, of the Sterling Notes in the event of certain changes in the tax laws of the U.S. (or any taxing authority in the U.S.). This redemption would be at a redemption price equal to 100% of the principal amount, together with accrued and unpaid interest on the Sterling Notes to, but not including, the redemption date.

TWCE Senior Debentures

The TWCE senior debentures are guaranteed by CCO Holdings, substantially all of the operating subsidiaries of Charter Operating and TWC, LLC and rank equally with the liens on the collateral securing obligations under the Charter Operating notes and credit facilities. Interest on each series of TWCE senior debentures is payable semi-annually in arrears. The TWCE senior debentures are not redeemable before maturity.

The TWCE indenture contains customary covenants relating to restrictions on the ability of TWCE or any material subsidiary to create liens and on the ability of TWC, LLC and TWCE to consolidate, merge or convey or transfer substantially all of their assets. The TWCE indenture also contains customary events of default.

Limitations on Distributions

Distributions by the Company’s subsidiaries to a parent company for payment of principal on parent company notes are restricted under the indentures and credit facilities discussed above, unless there is no default under the applicable indenture and credit facilities, and unless each applicable subsidiary’s leverage ratio test is met at the time of such distribution. As of December 31, 2017, there was no default under any of these indentures or credit facilities and each subsidiary met its applicable leverage ratio tests based on December 31, 2017 financial results. There can be no assurance that they will satisfy these tests at the time of the contemplated distribution. Distributions by Charter Operating for payment of principal on parent company notes are further restricted by the covenants in its credit facilities.

However, without regard to leverage, during any calendar year or any portion thereof during which the borrower is a flow-through entity for tax purposes, and so long as no event of default exists, the borrower may make distributions to the equity interests of the borrower in an amount sufficient to make permitted tax payments.

In addition to the limitation on distributions under the various indentures, distributions by the Company’s subsidiaries may be limited by applicable law, including the Delaware Limited Liability Company Act, under which the Company’s subsidiaries may make distributions if they have “surplus” as defined in the act.

Liquidity and Future Principal Payments

The Company continues to have significant amounts of debt, and its business requires significant cash to fund principal and interest payments on its debt, capital expenditures and ongoing operations. As set forth below, the Company has significant future principal payments. The Company continues to monitor the capital markets, and it expects to undertake refinancing transactions and utilize free cash flow and cash on hand to further extend or reduce the maturities of its principal obligations. The timing and terms of any refinancing transactions will be subject to market conditions.

Based upon outstanding indebtedness as of December 31, 2017, the amortization of term loans, and the maturity dates for all senior and subordinated notes, total future principal payments on the total borrowings under all debt agreements are as follows:



Year	Amount
2018	$	2,207
2019	3,457
2020	3,707
2021	2,407
2022	4,457
Thereafter	52,768
	$	69,003

Common Stock (Notes)

12 Months Ended

Dec. 31, 2017

Common Stock [Abstract]

Common Stock

Charter’s Class A common stock and Class B common stock are identical except with respect to certain voting, transfer and conversion rights. Holders of Class A common stock are entitled to one vote per share. Charter’s Class B common stock represents the share issued to A/N in connection with the Bright House Transaction. One share of Charter’s Class B common stock has a number of votes reflecting the voting power of the Charter Holdings common units and Charter Holdings convertible preferred units held by A/N as of the applicable record date on an if-converted, if-exchanged basis, and is generally intended to reflect A/N’s economic interests in Charter Holdings.

The following table summarizes our shares outstanding for the three years ended December 31, 2017:



	Class A Common Stock		Class B Common Stock
BALANCE, December 31, 2014	111,999,687		—
Exercise of stock options	579,173		—
Restricted stock issuances, net of cancellations	6,920		—
Restricted stock unit vesting	98,831		—
Purchase of treasury stock	(245,783	)	—
BALANCE, December 31, 2015	112,438,828		—
Reorganization of common stock	(10,771,404	)	—
Issuance of shares in TWC Transaction	143,012,155		—
Issuance of shares to Liberty Broadband for cash	25,631,339		—
Issuance of share to A/N in Bright House Transaction	—		1
Exchange of Charter Holdings units held by A/N (see Note 11)	1,852,832		—
Exercise of stock options	1,014,664		—
Restricted stock issuances, net of cancellations	9,811		—
Restricted stock unit vesting	1,738,792		—
Purchase of treasury stock	(6,029,225	)	—
BALANCE, December 31, 2016	268,897,792		1
Exchange of Charter Holdings units held by A/N (see Note 11)	1,263,497		—
Exercise of stock options	1,044,526		—
Restricted stock issuances, net of cancellations	9,517		—
Restricted stock unit vesting	1,159,083		—
Purchase of treasury stock	(33,868,356	)	—
BALANCE, December 31, 2017	238,506,059		1

The shares outstanding balances shown above as of and prior to December 31, 2015 represent historical shares outstanding of Legacy Charter before applying the Parent Merger Exchange Ratio (as defined in the Merger Agreement). The 10.8 million shares associated with the reorganization of Charter Class A common stock represents the reduction to Legacy Charter Class A common shares outstanding as of the acquisition date as a result of applying the Parent Merger Exchange Ratio.

Share Repurchases

The following represents the Company's purchase of Charter Class A common stock and the effect on the consolidated statements of cash flows during the years ended December 31, 2017, 2016 and 2015.



	Year Ended December 31,
	2017			2016			2015
	Shares	$		Shares	$		Shares	$
Share buybacks	33,375,878	$	11,570	5,070,656	$	1,346	—	$	—
Income tax withholding	447,455	145		908,066	216		177,696	38
Exercise cost	45,023			50,503			44,541
	33,868,356	$	11,715	6,029,225	$	1,562	222,237	$	38

As of December 31, 2017, Charter had remaining board authority to purchase an additional $1.1 billion of Charter’s Class A common stock and/or Charter Holdings common units. See Note 19. The Company also withholds shares of its Class A common stock in payment of income tax withholding owed by employees upon vesting of equity awards as well as exercise costs owed by employees upon exercise of stock options.

At the end of each fiscal year, Charter’s board of directors approved the retirement of the then currently outstanding treasury stock and those shares were retired as of December 31, 2017 and 2016. The Company accounts for treasury stock using the cost method and includes treasury stock as a component of total shareholders’ equity. Upon retirement, these treasury shares are allocated between additional paid-in capital and accumulated deficit based on the cost of original issue included in additional paid-in capital.

Noncontrolling Interests (Notes)	12 Months Ended
Noncontrolling Interests (Notes)	Dec. 31, 2017
Noncontrolling Interests [Abstract]
Noncontrolling Interests	Noncontrolling Interests Noncontrolling interests represents consolidated subsidiaries of which the Company owns less than 100%. The Company is a holding company whose principal asset is a controlling equity interest in Charter Holdings, the indirect owner of the Company’s cable systems. Noncontrolling interests on the Company’s balance sheet primarily includes A/N’s equity interests in Charter Holdings, which is comprised of a common ownership interest and a convertible preferred ownership interest. As of December 31, 2017, A/N held 22.3 million Charter Holdings common units which are exchangeable at any time into either Charter Class A common stock on a one-for-one basis, or, at Charter’s option, cash, based on the then current market price of Charter Class A common stock. Net income (loss) of Charter Holdings attributable to A/N’s common noncontrolling interest for financial reporting purposes is based on the weighted average effective common ownership interest of approximately 9% and 10% and was $69 million and $129 million for the years ended December 31, 2017 and 2016, respectively. Charter Holdings distributed $3 million to A/N as a pro rata tax distribution on its common units during the years ended December 31, 2017 and 2016. Pursuant to the letter agreement discussed in Note 19, Charter Holdings purchased 4.8 million Charter Holdings common units from A/N, at a price per unit of $347.03, or $1.7 billion during the year ended December 31, 2017, and 0.8 million Charter Holdings common units, at a price per unit of $289.83, or $218 million during the year ended December 31, 2016. The common units purchased during the year ended December 31, 2017 are reflected as a reduction in noncontrolling interest based on net carrying value of approximately $1.2 billion with the remaining $478 million recorded as reduction of additional paid-in-capital, net of $183 million of deferred income taxes. The common units purchased during the year ended December 31, 2016 are reflected as a reduction in noncontrolling interest based on net carrying value of approximately $187 million with the remaining $31 million recorded as reduction of additional paid-in-capital, net of $12 million of deferred income taxes. In December 2017 and 2016, A/N exchanged 1.3 million and 1.9 million Charter Holdings common units, respectively, held by A/N for shares of Charter Class A common stock for an aggregate purchase price of $400 million and $537 million, respectively, pursuant to the letter agreement discussed in Note 19. The common units exchanged had a net carrying value in noncontrolling interest of approximately $298 million and $460 million as of December 31, 2017 and 2016, respectively. The exchange of A/N common units resulted in a step-up in the tax-basis of the assets of Charter Holdings which is further discussed in Note 17. As of December 31, 2017, A/N also held 25 million Charter Holdings convertible preferred units with a face amount of $2.5 billion that pays a 6% annual preferred dividend. The 6% annual preferred dividend is paid quarterly in cash, if and when declared, provided that, if dividends are suspended at any time, the dividends will accrue until they are paid. Net income (loss) of Charter Holdings attributable to the preferred noncontrolling interest for financial reporting purposes is based on the preferred dividend which was $150 million and $93 million for the years ended December 31, 2017 and 2016, respectively. Each convertible preferred unit is convertible into either 0.37334 of a Charter Holdings common unit (if then held by A/N) or 0.37334 of a share of Charter Class A common stock (if then held by a third party), representing a conversion price of $267.85 per unit, based on a conversion feature as defined in the Limited Liability Company Agreement of Charter Holdings. After May 18, 2021, Charter may redeem the convertible preferred units if the price of Charter Class A common stock exceeds 130% of the conversion price. These Charter Holdings common and convertible preferred units held by A/N are recorded in noncontrolling interests as permanent equity in the consolidated balance sheet. The common units and convertible preferred units issued to A/N as consideration for the Bright House Transaction were initially measured at their fair value of $7.0 billion and $3.2 billion, respectively, in accordance with acquisition accounting. However, upon formation of Charter Holdings and subsequent to the acquisition, the carrying amounts of the controlling and noncontrolling interests were adjusted to reflect the relative effective common ownership interest in Charter Holdings. In addition to the common units purchased and exchanged with A/N as noted above, other changes in Charter Holdings' ownership resulted in an increase to noncontrolling interest of approximately $589 million and a corresponding decrease to additional paid-in capital of $589 million, net of $225 million of deferred income taxes, for the year ended December 31, 2016. Noncontrolling interest and additional paid-in-capital were also adjusted during the year ended December 31, 2017 due to the changes in Charter Holdings' ownership. These adjustments resulted in a decrease to noncontrolling interest of approximately $362 million and a corresponding increase to additional paid-in-capital of $362 million, net of $139 million of deferred income taxes, for the year ended December 31, 2017.

Accounting for Derivative Instruments and Hedging Activities (Notes)

12 Months Ended

Dec. 31, 2017

Accounting for Derivative Instruments and Hedging Activities [Abstract]

Accounting for Derivative Instruments and Hedging Activities

The Company uses derivative instruments to manage interest rate risk on variable debt and foreign exchange risk on the Sterling Notes, and does not hold or issue derivative instruments for speculative trading purposes.

Cross-currency derivative instruments are used to effectively convert £1.275 billion aggregate principal amount of fixed-rate British pound sterling denominated debt, including annual interest payments and the payment of principal at maturity, to fixed-rate U.S. dollar denominated debt. The cross-currency swaps have maturities of June 2031 and July 2042. The Company is required to post collateral on the cross-currency derivative instruments when the derivative contracts are in a liability position. In May 2016, the Company entered into a collateral holiday agreement for 80% of both the 2031 and 2042 cross-currency swaps, which eliminates the requirement to post collateral for three years. The fair value of the Company's cross-currency derivatives included in other long-term liabilities on the Company's consolidated balance sheets was $25 million and $251 million as of December 31, 2017 and 2016, respectively.

The Company’s derivative instruments are not designated as hedges and are marked to fair value each period, with the impact recorded as a gain or loss on financial instruments, net in the consolidated statements of operations. While these derivative instruments are not designated as cash flow hedges for accounting purposes, management continues to believe such instruments are correlated with the respective debt, thus managing associated risk.

The effect of financial instruments on the consolidated statements of operations is presented in the table below.



	Year Ended December 31,
	2017			2016			2015
Gain (Loss) on Financial Instruments, Net:
Change in fair value of interest rate derivative instruments	$	5		$	8		$	5
Change in fair value of cross-currency derivative instruments	226			(179		)	—
Foreign currency remeasurement of Sterling Notes to U.S. dollars	(157		)	279			—
Loss on termination of interest rate derivative instruments	—			(11		)	—
Loss reclassified from accumulated other comprehensive loss due to discontinuance of hedge accounting	(5		)	(8		)	(9		)
	$	69		$	89		$	(4	)

Upon closing of the TWC Transaction, the Company acquired interest rate derivative instrument assets which were terminated and settled with their respective counterparties in the second quarter of 2016 with an $88 million cash payment to the Company. The termination resulted in an $11 million loss for the year ended December 31, 2016 which was recorded in gain (loss) on financial instruments, net in the consolidated statements of operations. All of the Company's interest rate derivatives were expired as of December 31, 2017.

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

+ References

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+ Details

Fair Value Measurements (Notes)

12 Months Ended

Dec. 31, 2017

Fair Value Measurements [Abstract]

Fair Value Measurements

The accounting guidance establishes a three-level hierarchy for disclosure of fair value measurements, based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date, as follows:


•	Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.


•	Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.


•	Level 3 – inputs to the valuation methodology are unobservable and significant to the fair value measurement.

Financial Assets and Liabilities

The Company has estimated the fair value of its financial instruments as of December 31, 2017 and 2016 using available market information or other appropriate valuation methodologies. Considerable judgment, however, is required in interpreting market data to develop the estimates of fair value. Accordingly, the estimates presented in the accompanying consolidated financial statements are not necessarily indicative of the amounts the Company would realize in a current market exchange.

The carrying amounts of cash and cash equivalents, receivables, payables and other current assets and liabilities approximate fair value because of the short maturity of those instruments.

A portion of the Company’s cash and cash equivalents as of December 31, 2017 and 2016 were invested in money market funds. The money market funds are valued at the closing price reported by the fund sponsor from an actively traded exchange which approximates fair value. The money market funds potentially subject the Company to concentration of credit risk. The amount invested within any one financial instrument did not exceed $300 million and $250 million as of December 31, 2017 and 2016, respectively. As of December 31, 2017 and 2016, there were no significant concentrations of financial instruments in a single investee, industry or geographic location.

The Company’s financial instruments that are accounted for at fair value on a recurring basis as of December 31, 2017 and 2016 are presented in the table below.



	December 31,
	2017				2016
	Level 1		Level 2		Level 1		Level 2
Assets
Money market funds	$	291	$	—	$	1,205	$	—
Liabilities
Cross-currency derivative instruments	$	—	$	25	$	—	$	251

A summary of the carrying value and fair value of the Company’s debt at December 31, 2017 and 2016 is as follows:



	December 31,
	2017				2016
	Carrying Value		Fair Value		Carrying Value		Fair Value
Debt
Senior notes and debentures	$	60,844	$	63,443	$	52,933	$	55,203
Credit facilities	$	9,387	$	9,440	$	8,814	$	8,943

The estimated fair value of the Company’s senior notes and debentures as of December 31, 2017 and 2016 is based on quoted market prices in active markets and is classified within Level 1 of the valuation hierarchy, while the estimated fair value of the Company’s credit facilities is based on quoted market prices in inactive markets and is classified within Level 2.

Non-financial Assets and Liabilities

The Company’s nonfinancial assets such as equity-method investments, franchises, property, plant, and equipment, and other intangible assets are not measured at fair value on a recurring basis; however, they are subject to fair value adjustments in certain circumstances, such as upon a business combination and when there is evidence that an impairment may exist. No impairments were recorded in 2017, 2016 and 2015.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Operating Costs and Expenses (Notes)

12 Months Ended

Dec. 31, 2017

Operating Costs and Expenses [Abstract]

Operating Costs and Expenses

Operating costs and expenses, exclusive of items shown separately in the consolidated statements of operations, consist of the following for the periods presented:



	Year Ended December 31,
	2017		2016		2015
Programming	$	10,596	$	7,034	$	2,678
Regulatory, connectivity and produced content	2,064		1,467		435
Costs to service customers	7,780		5,654		1,880
Marketing	2,420		1,707		629
Transition costs	124		156		72
Other	3,557		2,637		732
	$	26,541	$	18,655	$	6,426

Programming costs consist primarily of costs paid to programmers for basic, premium, digital, video on demand, and pay-per-view programming. Regulatory, connectivity and produced content costs represent payments to franchise and regulatory authorities, costs directly related to providing video, Internet and voice services as well as payments for sports, local and news content produced by the Company. Included in regulatory, connectivity and produced content costs is content acquisition costs for the Los Angeles Lakers’ basketball games and Los Angeles Dodgers’ baseball games which are recorded as games are exhibited over the applicable season. Costs to service customers include costs related to field operations, network operations and customer care for the Company’s residential and small and medium business customers, including internal and third-party labor for installations, service and repairs, maintenance, bad debt expense, billing and collection, occupancy and vehicle costs. Marketing costs represent the costs of marketing to current and potential commercial and residential customers including labor costs. Transition costs represent incremental costs incurred to integrate the TWC and Bright House operations and to increase the scale of the Company’s business as a result of the Transactions. See Note 3. Other includes corporate overhead, advertising sales expenses, indirect costs associated with the Company’s enterprise business customers and regional sports and news networks, property tax and insurance expense and stock compensation expense, among others.

Other Operating Expenses, Net (Notes)

12 Months Ended

Dec. 31, 2017

Other Operating Expenses, Net [Abstract]

Other Operating Expenses, Net

Other operating expenses, net consist of the following for the years presented:



	Year Ended December 31,
	2017			2016			2015
Merger and restructuring costs	$	351		$	970		$	70
Special charges, net	(21		)	17			15
(Gain) loss on sale of assets, net	16			(2		)	4
	$	346		$	985		$	89

Merger and restructuring costs

Merger and restructuring costs represent costs incurred in connection with merger and acquisition transactions and related restructuring, such as advisory, legal and accounting fees, employee retention costs, employee termination costs related to the Transactions and other exit costs. The Company expects to incur additional merger and restructuring costs in connection with the Transactions. Changes in accruals for merger and restructuring costs from January 1, 2016 through December 31, 2017 are presented below:



	Employee Retention Costs			Employee Termination Costs			Transaction and Advisory Costs			Other Costs			Total
Liability, December 31, 2015	$	—		$	—		$	33		$	—		$	33
Liability assumed in the Transactions	80			9			3			—			92
Costs incurred	26			337			318			41			722
Cash paid	(99		)	(102		)	(329		)	(41		)	(571		)
Remaining liability, December 31, 2016	7			244			25			—			276

Costs incurred	4			226			4			68			302
Cash paid	(10		)	(298		)	(12		)	(60		)	(380		)
Remaining liability, December 31, 2017	$	1		$	172		$	17		$	8		$	198

In addition to the costs indicated above, the Company recorded $49 million and $248 million of expense related to accelerated vesting of equity awards of terminated employees for the years ended December 31, 2017 and 2016, respectively.

Special charges, net

Special charges, net primarily includes employee termination costs not related to the Transactions and net amounts of litigation settlements. In 2017, special charges, net also includes a $101 million benefit related to the remeasurement of the TRA liability as a result of the enactment of the Tax Cuts & Jobs Act (“Tax Reform”) in December 2017 (see Note 17) offset by an $83 million charge related to the Company's withdrawal liability from a multiemployer pension plan.

(Gain) loss on sale of assets, net

(Gain) loss on sale of assets, net represents the net (gain) loss recognized on the sales and disposals of fixed assets and cable systems.

Stock Compensation Plans (Notes)

12 Months Ended

Dec. 31, 2017

Stock Compensation Plans [Abstract]

Stock Compensation Plans

Charter’s 2009 Stock Incentive Plan provides for grants of nonqualified stock options, incentive stock options, stock appreciation rights, dividend equivalent rights, performance units and performance shares, share awards, phantom stock, restricted stock units and restricted stock. Directors, officers and other employees of the Company and its subsidiaries, as well as others performing consulting services for the Company, are eligible for grants under the 2009 Stock Incentive Plan. The 2009 Stock Incentive Plan allows for the issuance of up to 21 million shares of Charter Class A common stock (or units convertible into Charter Class A common stock).

At the closing of the TWC Transaction, Legacy TWC employee equity awards were converted into Charter Class A common stock equity awards on the same terms and conditions as were applicable under the Legacy TWC equity awards, except that the number of shares covered by each award and the option exercise prices were adjusted for the Stock Award Exchange Ratio (as defined in the Merger Agreement) such that the intrinsic value of the converted TWC awards was approximately equal to that of the original awards at the closing of the Transactions. The converted TWC awards continue to be subject to the terms of the Legacy TWC equity plans. The Parent Merger Exchange Ratio was also applied to outstanding Legacy Charter equity awards and option exercise prices; however, the terms of the equity awards did not change as a result of the Transactions.

Charter Stock options and restricted stock units cliff vest upon the three year anniversary of each grant. Certain stock options and restricted stock units vest based on achievement of stock price hurdles. Stock options generally expire ten years from the grant date and restricted stock units have no voting rights. Restricted stock generally vests one year from the date of grant. Legacy TWC restricted stock units that were converted into Charter restricted stock units generally vest 50% on each of the third and fourth anniversary of the grant date.

As of December 31, 2017, total unrecognized compensation remaining to be recognized in future periods totaled $211 million for stock options, $1 million for restricted stock and $173 million for restricted stock units and the weighted average period over which they are expected to be recognized is 3 years for stock options, 4 months for restricted stock and 2 years for restricted stock units. The Company recorded $261 million, $244 million and $78 million of stock compensation expense for the years ended December 31, 2017, 2016 and 2015, respectively, which is included in operating costs and expenses. The Company also recorded $49 million and $248 million of expense for the years ended December 31, 2017 and 2016, respectively, related to accelerated vesting of equity awards of terminated employees which is recorded in merger and restructuring costs.

A summary of the activity for the Company’s stock options (after applying the Parent Merger Exchange Ratio) for the years ended December 31, 2017, 2016 and 2015, is as follows (shares in thousands, except per share data):



	Year Ended December 31,
	2017								2016								2015
	Shares				Weighted Average Exercise Price		Aggregate Intrinsic Value		Shares				Weighted Average Exercise Price		Aggregate Intrinsic Value		Shares				Weighted Average Exercise Price		Aggregate Intrinsic Value
Outstanding, beginning of period	9,592				$	181.39			3,923				$	122.03			3,336				$	95.42
Granted	1,175				$	302.87			5,999				$	218.91			1,176				$	177.14
Converted TWC awards	—				$	—			839				$	86.46			—				$	—
Exercised	(1,044		)		$	124.32	$	219	(1,015		)		$	96.33	$	146	(524		)		$	72.27	$	68
Canceled	(74		)		$	251.63			(154		)		$	173.98			(65		)		$	155.23
Outstanding, end of period	9,649				$	201.83	$	1,295	9,592				$	181.39			3,923				$	122.03

Weighted average remaining contractual life	8			years					8			years					7			years
Options exercisable, end of period	1,734				$	90.56	$	425	1,665				$	71.71			1,224				$	61.88
Options expected to vest, end of period	7,915				$	226.20	$	869
Weighted average fair value of options granted	$	73.67							$	47.42							$	66.20

A summary of the activity for the Company’s restricted stock (after applying the Parent Merger Exchange Ratio) for the years ended December 31, 2017, 2016 and 2015, is as follows (shares in thousands, except per share data):



	Year Ended December 31,
	2017				2016				2015
	Shares		Weighted Average Grant Price		Shares		Weighted Average Grant Price		Shares		Weighted Average Grant Price
Outstanding, beginning of period	10		$	231.81	197		$	65.79	390		$	63.30
Granted	10		$	343.10	10		$	231.83	6		$	201.34
Vested	(10	)	$	231.81	(197	)	$	65.79	(199	)	$	65.16
Canceled	—		$	—	—		$	—	—		$	—
Outstanding, end of period	10		$	343.10	10		$	231.81	197		$	65.79

A summary of the activity for the Company’s restricted stock units (after applying the Parent Merger Exchange Ratio) for the years ended December 31, 2017, 2016 and 2015, is as follows (shares in thousands, except per share data):



	Year Ended December 31,
	2017				2016				2015
	Shares		Weighted Average Grant Price		Shares		Weighted Average Grant Price		Shares		Weighted Average Grant Price
Outstanding, beginning of period	3,313		$	192.41	337		$	150.96	294		$	115.01
Granted	285		$	302.76	895		$	213.09	148		$	179.17
Converted TWC awards	—		$	—	4,162		$	224.90	—		$	—
Vested	(1,159	)	$	216.21	(1,739	)	$	219.60	(90	)	$	78.65
Canceled	(48	)	$	234.99	(342	)	$	219.91	(15	)	$	155.43
Outstanding, end of period	2,391		$	192.96	3,313		$	192.41	337		$	150.96

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Income Taxes (Notes)

12 Months Ended

Dec. 31, 2017

Income Taxes [Abstract]

Income Taxes

Substantially all of the Company’s operations are held through Charter Holdings and its direct and indirect subsidiaries. Charter Holdings and the majority of its subsidiaries are generally limited liability companies that are not subject to income tax. However, certain of these limited liability companies are subject to state income tax. In addition, the subsidiaries that are corporations are subject to income tax. Generally, the taxable income, gains, losses, deductions and credits of Charter Holdings are passed through to its members, Charter and A/N. Charter is responsible for its share of taxable income or loss of Charter Holdings allocated to it in accordance with the Charter Holdings Limited Liability Company Agreement ("LLC Agreement") and partnership tax rules and regulations. As a result, Charter's primary deferred tax component recorded in the consolidated balance sheets relates to its excess financial reporting outside basis, excluding amounts attributable to nondeductible goodwill, over Charter's tax basis in the investment in Charter Holdings.

Charter Holdings, the indirect owner of the Company’s cable systems, generally allocates its taxable income, gains, losses, deductions and credits proportionately according to the members’ respective ownership interests, except for special allocations required under Section 704(c) of the Internal Revenue Code and the Treasury Regulations (“Section 704(c)”). Pursuant to Section 704(c) and the LLC Agreement, each item of income, gain, loss and deduction with respect to any property contributed to the capital of the partnership shall, solely for tax purposes, be allocated among the members so as to take into account any variation between the adjusted basis of such property to the partnership for U.S. federal income tax purposes and its initial gross asset value using the “traditional method” as described in the Treasury Regulations.

Income Tax Benefit

For the years ended December 31, 2017, 2016, and 2015, the Company recorded deferred income tax benefit as shown below. The tax provision in future periods will vary based on current and future temporary differences, as well as future operating results.



	Year Ended December 31,
	2017			2016			2015
Current expense:
Federal income taxes	$	(4	)	$	(4	)	$	(1	)
State income taxes	(25		)	(29		)	(4		)
Current income tax expense	(29		)	(33		)	(5		)

Deferred benefit:
Federal income taxes	9,082			2,549			53
State income taxes	34			409			12
Deferred income tax benefit	9,116			2,958			65
Income tax benefit	$	9,087		$	2,925		$	60

Income tax benefit for the year ended December 31, 2017 was recognized primarily as a result of the enactment of Tax Reform in December 2017. Among other things, the primary provisions of Tax Reform impacting us are the reductions to the U.S. corporate income tax rate from 35% to 21% and temporary 100% bonus depreciation for certain assets. The change in tax law required the Company to remeasure existing net deferred tax liabilities using the lower rate in the period of enactment resulting in an income tax benefit of approximately $9.3 billion to reflect these changes in the year ended December 31, 2017. The Company has reported provisional amounts for the income tax effects of Tax Reform for which the accounting is incomplete but a reasonable estimate could be determined. There were no specific impacts of Tax Reform that could not be reasonably estimated which the Company accounted for under prior tax law. Based on a continued analysis of the estimates and further guidance on the application of the law, it is anticipated that additional revisions may occur throughout the allowable measurement period. Overall, the changes due to Tax Reform will favorably affect income tax expense on future U.S. earnings. Income tax benefit for the year ended December 31, 2017 was also increased by approximately $88 million due to the recognition of excess tax benefits resulting from share based compensation as a component of the provision for income taxes following the prospective application of Accounting Standards Update (“ASU”) No. 2016-09, Improvements to Employee Share-Based Payment Accounting (“ASU 2016-09”) on January 1, 2017. See Note 22.

Income tax benefit for the year ended December 31, 2016 was recognized primarily through the reversal of approximately $3.3 billion of valuation allowance (see further discussion below), net of tax effect of permanent differences, a decrease to the anticipated blended state rate applied to Legacy Charter deferred tax balances as a result of the Transactions, a change in a state tax law, and prior to the closing of the Transactions, increases (decreases) in deferred tax liabilities related to Charter’s franchises which are characterized as indefinite-lived for book financial reporting purposes.

Prior to July 2, 2015, Charter Communications Holding Company, LLC ("Charter Holdco") was treated as a partnership for tax purposes. Effective on July 2, 2015, Charter elected to treat two of its wholly owned subsidiaries as disregarded entities for federal and state income tax purposes (the “Election”). The subsidiaries that made the Election were two of the three partners in Charter Holdco. This Election resulted in a deemed liquidation of Charter Holdco into Charter solely for federal and state income tax purposes, and resulted in a net increase of $638 million to the tax basis of Charter Holdco’s amortizable and depreciable assets. After the Election, all taxable income, gains, losses, deductions and credits of Charter Holdco and its indirect limited liability company subsidiaries were treated as income of Charter. In addition, the indirect subsidiaries of Charter Holdco that are corporations joined the Charter consolidated group. The impact of the Election to the Charter income tax provision, net of valuation allowance, was $187 million of income tax benefit recorded as a discrete tax event during the year ended December 31, 2015.

The Company’s effective tax rate differs from that derived by applying the applicable federal income tax rate of 35% for the years ended December 31, 2017, 2016, and 2015, respectively, as follows:



	Year Ended December 31,
	2017			2016			2015
Statutory federal income taxes	$	(360	)	$	(288	)	$	116
Statutory state income taxes, net	(34		)	(36		)	(4		)
Nondeductible expenses	(21		)	(62		)	(12		)
Net income attributable to noncontrolling interest	84			78			—
Change in valuation allowance	14			3,171			(250		)
Excess stock compensation	88			—			—
Organizational restructuring	—			—			187
Federal tax credits	21			16			18
Tax rate changes	9,293			65			4
Other	2			(19		)	1
Income tax benefit	$	9,087		$	2,925		$	60

The change in the valuation allowance above differs from the change between the beginning and ending valuation allowance below due to a change in certain deferred tax assets and the corresponding establishment of a valuation allowance which results in no impact to the consolidated statements of operations.

Deferred Tax Assets (Liabilities)

The tax effects of these temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2017 and 2016 are presented below.



	December 31,
	2017			2016
Deferred tax assets:
Loss carryforwards	$	2,657		$	4,127
Accrued and other	287			243
Total gross deferred tax assets	2,944			4,370
Less: valuation allowance	(137		)	(200		)
Deferred tax assets	$	2,807		$	4,170

Deferred tax liabilities:
Investment in partnership	$	(20,107	)	$	(30,832	)
Accrued and other	(14		)	(3		)
Deferred tax liabilities	(20,121		)	(30,835		)
Net deferred tax liabilities	$	(17,314	)	$	(26,665	)

The deferred tax liabilities on the investment in partnership above includes approximately $32 million and $25 million net deferred tax liabilities relating to certain indirect subsidiaries that file separate state income tax returns at December 31, 2017 and 2016, respectively.

Valuation Allowance

In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will be realized. In evaluating the need for a valuation allowance, management takes into account various factors, including the expected level of future taxable income, available tax planning strategies and reversals of existing taxable temporary differences. Due to Legacy Charter’s history of losses, Legacy Charter was historically unable to assume future taxable income in its analysis and accordingly valuation allowances were established against the deferred tax assets, net of deferred tax liabilities, from definite-lived assets for book accounting purposes. However, as a result of the TWC Transaction, deferred tax liabilities resulting from the book fair value adjustment increased significantly and future taxable income that will result from the reversal of existing temporary differences for which deferred tax liabilities are recognized, is sufficient to conclude it is more likely than not that the Company will realize substantially all of its deferred tax assets. As a result, Charter reversed approximately $3.3 billion of its valuation allowance and recognized a corresponding income tax benefit in the consolidated statements of operations for the year ended December 31, 2016. As of December 31, 2017 and 2016, approximately $87 million and $145 million, respectively, of the valuation allowance is associated with federal tax net operating loss carryforwards acquired in the TWC Transaction and approximately $50 million and $55 million, respectively, of the valuation allowance is associated with state tax loss carryforwards and tax credits.

Net Operating Loss Carryforwards

As of December 31, 2017, Charter had approximately $10.9 billion of federal tax net operating loss carryforwards resulting in a gross deferred tax asset of approximately $2.3 billion. Federal tax net operating loss carryforwards expire in the years 2018 through 2035. These losses resulted from the operations of Charter Holdco and its subsidiaries. In addition, as of December 31, 2017, Charter had state tax net operating loss carryforwards, resulting in a gross deferred tax asset (net of federal tax benefit) of approximately $359 million. State tax net operating loss carryforwards generally expire in the years 2018 through 2037.

Upon closing of the TWC Transaction, Charter experienced a third “ownership change” as defined in Section 382 of the Internal Revenue Code; resulting in a third set of limitations on Charter’s use of its existing federal and state net operating losses, capital losses, and tax credit carryforwards. Both the first ownership change limitations that applied as a result of Legacy Charter’s emergence from bankruptcy in 2009 and second ownership change limitations that applied as a result of Liberty Media Corporation’s purchase in 2013 of a 27% beneficial interest in Legacy Charter will also continue to apply. As of December 31, 2017, all of Charter's federal tax loss carryforwards are subject to Section 382 and other restrictions. Pursuant to these restrictions, Charter estimates that approximately $8.7 billion in 2018, $654 million in 2019 and an additional $226 million annually over each of the next five years of federal tax loss carryforwards should become unrestricted and available for Charter’s use. An additional $415 million is currently subject to a valuation allowance. Since the limitation amounts accumulate for future use to the extent they are not utilized in any given year, Charter believes its loss carryforwards should become fully available to offset future taxable income. Charter’s state loss carryforwards are subject to similar, but varying, limitations on their future use. If Charter was to experience another “ownership change” in the future, its ability to use its loss carryforwards could be subject to further limitations.

Tax Receivable Agreement

Under the LLC Agreement, A/N has rights to: (1) convert at any time some or all of its preferred units in Charter Holdings for common units in Charter Holdings, and (2) exchange at any time some or all of its common units in Charter Holdings for Charter’s Class A common stock or cash, at Charter’s option. Pursuant to a Tax Receivable Agreement ("TRA") between Charter and A/N, Charter must pay to A/N 50% of the tax benefit when realized by Charter from the step-up in tax basis resulting from any future exchange or sale of the preferred and common units. Charter did not record a liability for this obligation as of the acquisition date since the tax benefit is dependent on uncertain future events that are outside of Charter’s control, such as the timing of a conversion or exchange. A future exchange or sale is not based on a fixed and determinable date and the exchange or sale is not certain to occur. If all of A/N's partnership units were to be exchanged or sold in the future, the undiscounted value of the obligation is currently estimated to be in the range of zero to $3 billion depending on measurement of the tax step-up in the future and Charter’s ability to realize the tax benefit in the periods following the exchange or sale. Factors impacting these calculations include, but are not limited to, the fair value of the equity at the time of the exchange and the effective tax rates when the benefits are realized.

In connection with the Letter Agreement between Charter and A/N (see Note 19) whereby 1.3 million and 1.9 million Charter Holdings common units held by A/N during the year ended December 31, 2017 and 2016, respectively, were exchanged for shares of Charter Class A common stock for an aggregate purchase price of $400 million and $537 million, respectively, an immediate step-up of $487 million and $580 million, respectively, in the tax basis of the assets of Charter Holdings occurred. As it relates to the exchange and tax step-up, a net deferred tax asset of approximately $85 million and $82 million, respectively, was recorded and a resulting TRA liability owed to A/N of $118 million and $137 million, respectively, which, as a transaction with a shareholder, was recorded directly to additional paid in capital, net of tax during the year ended December 31, 2017 and 2016. The TRA liability is recorded on an iterative, undiscounted basis. The TRA liability was remeasured as a result of the enactment of Tax Reform resulting in a $101 million benefit recorded to other operating expenses, net. See Note 15. Following such remeasurement, the TRA liability of $154 million is reflected in other long-term liabilities on the consolidated balance sheets as of December 31, 2017 and 2016.

Uncertain Tax Positions

In connection with the TWC Transaction, the Company assumed $181 million of gross unrecognized tax benefits, exclusive of interest and penalties, which are recorded within other long-term liabilities. The net amount of the unrecognized tax benefits recorded as of December 31, 2017 that could impact the effective tax rate is $171 million. The Company has determined that it is reasonably possible that its existing reserve for uncertain tax positions as of December 31, 2017 could decrease by approximately $58 million during the year ended December 31, 2018 related to various ongoing audits, settlement discussions and expiration of statute of limitations with various state and local agencies; however, various events could cause the Company’s current expectations to change in the future. These uncertain tax positions, if ever recognized in the financial statements, would be recorded in the consolidated statements of operations as part of the income tax provision. A reconciliation of the beginning and ending amount of unrecognized tax benefits, exclusive of interest and penalties, included in other long-term liabilities on the accompanying consolidated balance sheets of the Company is as follows:



BALANCE, December 31, 2015	$	5
Additions on prior year tax positions	1
Additions on current year tax positions	7
Additions on tax positions assumed in the TWC Transaction	181
Reductions on settlements and expirations with taxing authorities	(22		)

BALANCE, December 31, 2016	$	172
Additions on prior year tax positions	1
Additions on current year tax positions	12
Reductions on settlements and expirations with taxing authorities	(21		)

BALANCE, December 31, 2017	$	164

The Company recognizes interest and penalties accrued on uncertain income tax positions as part of the income tax provision. Interest and penalties included in other long-term liabilities on the accompanying consolidated balance sheets of the Company were $39 million and $34 million as of December 31, 2017 and 2016, respectively.

No tax years for Charter, Charter Holdings, or Charter Communications Holding Company, LLC for income tax purposes, are currently under examination by the Internal Revenue Service ("IRS"). Charter and Charter Holdings' 2016 and 2017 tax years remain open for examination and assessment. Legacy Charter’s tax years ending 2014 through the short period return dated May 17, 2016 remain subject to examination and assessment. Years prior to 2014 remain open solely for purposes of examination of Legacy Charter’s loss and credit carryforwards. The IRS is currently examining Legacy TWC’s income tax returns for 2011 through 2014. Legacy TWC’s tax year 2015 remains subject to examination and assessment. Prior to Legacy TWC’s separation from Time Warner Inc. (“Time Warner”) in March 2009 (the “Separation”), Legacy TWC was included in the consolidated U.S. federal and certain state income tax returns of Time Warner. The IRS is currently examining Time Warner’s 2008 through 2010 income tax returns. Time Warner’s income tax returns for 2005 to 2007, which are periods prior to the Separation, were settled with the exception of an immaterial item that has been referred to the IRS Appeals Division. The Company does not anticipate that these examinations will have a material impact on the Company’s consolidated financial position or results of operations. In addition, the Company is also subject to ongoing examinations of the Company’s tax returns by state and local tax authorities for various periods. Activity related to these state and local examinations did not have a material impact on the Company’s consolidated financial position or results of operations during the year ended December 31, 2017, nor does the Company anticipate a material impact in the future.

Earnings (Loss) Per Share (Notes)

12 Months Ended

Dec. 31, 2017

Earnings (Loss) Per Share [Abstract]

Earnings (Loss) per Share

Earnings (Loss) Per Share

Basic earnings (loss) per common share is computed by dividing net income (loss) attributable to Charter shareholders by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per common share considers the impact of potentially dilutive securities using the treasury stock and if-converted methods and is based on the weighted average number of shares used for the basic earnings per share calculation, adjusted for the dilutive effect of stock options, restricted stock, restricted stock units, equity awards with market conditions and Charter Holdings convertible preferred units and common units. Basic loss per common share equaled diluted loss per common share for the year ended December 31, 2015 because the Company incurred a net loss during those periods. The following is the computation of diluted earnings per common share for the years presented.



	Year Ended December 31,
	2017		2016
Numerator:
Net income attributable to Charter shareholders	$	9,895	$	3,522
Effect of dilutive securities:
Charter Holdings common units	69		129
Charter Holdings convertible preferred units	150		93
Net income attributable to Charter shareholders after assumed conversions	$	10,114	$	3,744

Denominator:
Weighted average common shares outstanding, basic	256,720,715		206,539,100
Effect of dilutive securities:
Assumed exercise or issuance of shares relating to stock plans	4,012,145		3,088,871
Weighted average Charter Holdings common units	26,637,596		19,333,227
Weighted average Charter Holdings convertible preferred units	9,333,500		5,830,241
Weighted average common shares outstanding, diluted	296,703,956		234,791,439

Basic earnings per common share attributable to Charter shareholders	$	38.55	$	17.05
Diluted earnings per common share attributable to Charter shareholders	$	34.09	$	15.94

Related Party Transactions (Notes)	12 Months Ended
Related Party Transactions (Notes)	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions The following sets forth certain transactions in which the Company and the directors, executive officers, and affiliates of the Company are involved or, in the case of the management arrangements, subsidiaries that are debt issuers that pay certain of their parent companies for services. Charter is a party to management arrangements with Spectrum Management Holding Company, LLC ("Spectrum Management") and certain of their subsidiaries. Under these agreements, Charter, Spectrum Management and Charter Holdco provide management services for the cable systems owned or operated by their subsidiaries. Costs associated with providing these services are charged directly to the Company’s operating subsidiaries. All other costs incurred on behalf of Charter’s operating subsidiaries are considered a part of the management fee. These costs are recorded as a component of operating costs and expenses, in the accompanying consolidated financial statements. The management fee charged to the Company’s operating subsidiaries approximated the expenses incurred by Spectrum Management, Charter Holdco and Charter on behalf of the Company’s operating subsidiaries in 2017, 2016 and 2015. Liberty Broadband and A/N On May 23, 2015, in connection with the execution of the Merger Agreement and the amendment of the Contribution Agreement, Charter entered into the Amended and Restated Stockholders Agreement with Liberty Broadband, A/N and Legacy Charter (the “Stockholders Agreement”) and the LLC Agreement with Liberty Broadband and A/N. As of the closing of the Merger Agreement and the Contribution Agreement on May 18, 2016, the Stockholders Agreement replaced Legacy Charter’s existing stockholders agreement with Liberty Broadband, dated September 29, 2014, and superseded the amended and restated stockholders agreement among Legacy Charter, Charter, Liberty Broadband and A/N, dated March 31, 2015. Under the terms of the Stockholders Agreement, the number of Charter’s directors is fixed at 13, and includes its CEO. Upon the closing of the Bright House Transaction, two designees selected by A/N became members of the board of directors of Charter and three designees selected by Liberty Broadband continued as members of the board of directors of Charter. The remaining eight directors are not affiliated with either A/N or Liberty Broadband. Each of A/N and Liberty Broadband is entitled to nominate at least one director to each of the committees of Charter’s board of directors, subject to applicable stock exchange listing rules and certain specified voting or equity ownership thresholds for each of A/N and Liberty Broadband, and provided that the Nominating and Corporate Governance Committee and the Compensation and Benefit Committee each have at least a majority of directors independent from A/N, Liberty Broadband and the Company (referred to as the “unaffiliated directors”). Each of the Nominating and Corporate Governance Committee and the Compensation and Benefits Committee is currently comprised of three unaffiliated directors and one designee of each of A/N and Liberty Broadband. A/N and Liberty Broadband also have certain other committee designation and other governance rights. Upon the closing of the Bright House Transaction, Mr. Thomas Rutledge, the Company’s CEO, became the chairman of the board of Charter. In December 2016, Charter and A/N entered into a letter agreement (the "Letter Agreement") that requires A/N to sell to Charter or to Charter Holdings, on a monthly basis, a number of shares of Charter Class A common stock or Charter Holdings common units that represents a pro rata participation by A/N and its affiliates in any repurchases of shares of Charter Class A common stock from persons other than A/N effected by Charter during the immediately preceding calendar month, at a purchase price equal to the average price paid by Charter for the shares repurchased from persons other than A/N during such immediately preceding calendar month. A/N and Charter both have the right to terminate or suspend the pro rata repurchase arrangement on a prospective basis once Charter or Charter Holdings have repurchased shares of Class A common stock or Charter Holdings common units from A/N and its affiliates for an aggregate purchase price of $537 million, which threshold has been met. On December 21, 2017, Charter and A/N entered into an amendment to the Letter Agreement resetting the aggregate purchase price to $400 million. See Note 11. Pursuant to the TRA between Charter and A/N, Charter must pay to A/N 50% of the tax benefit when realized by Charter from the step-up in tax basis resulting from any future exchange or sale of the preferred and common units. See Note 17 for more information. The Company is aware that Dr. John Malone may be deemed to have a 39.2% voting interest in Liberty Interactive and is Chairman of the board of directors, an executive officer position, of Liberty Interactive. Liberty Interactive wholly owns HSN, Inc. (“HSN”) and QVC, Inc. (“QVC”). The Company has programming relationships with HSN and QVC which pre-date the transaction with Liberty Media Corporation. For the years ended December 31, 2017, 2016 and 2015, the Company recorded revenue in aggregate of approximately $77 million, $53 million and $17 million, respectively, from HSN and QVC as part of channel carriage fees and revenue sharing arrangements for home shopping sales made to customers in the Company’s footprint. Dr. Malone and Mr. Steven Miron, each a member of Charter’s board of directors, also serve on the board of directors of Discovery Communications, Inc., (“Discovery”). The Company is aware that Dr. Malone owns 93.6% of the series B common stock of Discovery, 6% of the series C common stock of Discovery and has a 28.1% voting interest in Discovery for the election of directors. The Company is aware that Advance/Newhouse Programming Partnership (“A/N PP”), an affiliate of A/N and in which Mr. Miron is the CEO, owns 100% of the Series A preferred stock of Discovery and 100% of the Series C preferred stock of Discovery and has a 31.1% voting interest for the election of directors. A/N PP has the right to appoint three directors out of a total of eleven directors to Discovery’s board to be elected by the holders of Discovery’s Series A preferred stock. In addition, Dr. Malone is a member of the board of directors of Lions Gate Entertainment Corp. ("Lions Gate," parent company of Starz, Inc.) and owns approximately 5.5% in the aggregate of the common stock of Lions Gate and has 7.9% of the voting power, pursuant to his ownership of Lions Gate Class A voting shares. The Company purchases programming from both Discovery and Lions Gate pursuant to agreements entered into prior to Dr. Malone and Mr. Miron joining Charter’s board of directors. Based on publicly available information, the Company does not believe that either Discovery or Lions Gate would currently be considered related parties. The amounts paid in the aggregate to Discovery and Lions Gate represent less than 3% of total operating costs and expenses for the years ended December 31, 2017, 2016 and 2015. Equity Investments The Company has agreements with certain equity-method investees (see Note 7) pursuant to which the Company has made or received related party transaction payments. The Company recorded payments to equity-method investees totaling $317 million, $171 million and $28 million during the years ended December 31, 2017, 2016 and 2015, respectively. The Company recorded advertising revenues from transactions with equity-method investees totaling $9 million and $7 million during the years ended December 31, 2017 and 2016, respectively. There were no advertising revenues received in 2015.

Commitments and Contingencies (Notes)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies [Abstract]

Commitments and Contingencies

Commitments

The following table summarizes the Company’s payment obligations as of December 31, 2017 for its contractual obligations.



	Total		2018		2019		2020		2021		2022		Thereafter
Capital and Operating Lease Obligations ^(a)	$	1,512	$	286	$	235	$	199	$	165	$	132	$	495
Programming Minimum Commitments ^(b)	164		103		39		22		—		—		—
Other ^(c)	13,626		1,917		1,031		839		653		499		8,687
	$	15,302	$	2,306	$	1,305	$	1,060	$	818	$	631	$	9,182


^(a)	The Company leases certain facilities and equipment under non-cancelable capital and operating leases. Capital lease obligations represented $123 million of total capital and operating lease obligations as of December 31, 2017. Leases and rental costs charged to expense for the years ended December 31, 2017, 2016 and 2015 were $321 million, $215 million, $49 million, respectively.

^(b)

The Company pays programming fees under multi-year contracts ranging from three to ten years, typically based on a flat fee per customer, which may be fixed for the term, or may in some cases escalate over the term. Programming costs included in the statement of operations were $10.6 billion, $7.0 billion and $2.7 billion for the years ended December 31, 2017, 2016 and 2015 respectively. Certain of the Company’s programming agreements are based on a flat fee per month or have guaranteed minimum payments. The table sets forth the aggregate guaranteed minimum commitments under the Company’s programming contracts.

^(c)

“Other” represents other guaranteed minimum commitments, including rights negotiated directly with content owners for distribution on company-owned channels or networks, commitments related to our role as an advertising and distribution sales agent for third party-owned channels or networks, commitments to our customer premise equipment vendors and contractual obligations related to third-party network augmentation.

The following items are not included in the contractual obligation table due to various factors discussed below. However, the Company incurs these costs as part of its operations:


•	The Company rents utility poles used in its operations. Generally, pole rentals are cancelable on short notice, but the Company anticipates that such rentals will recur. Rent expense incurred for pole rental attachments for the years ended December 31, 2017, 2016 and 2015 was $167 million, $115 million and $53 million, respectively.

•

The Company pays franchise fees under multi-year franchise agreements based on a percentage of revenues generated from video service per year. The Company also pays other franchise related costs, such as public education grants, under multi-year agreements. Franchise fees and other franchise-related costs included in the accompanying statement of operations were $705 million, $534 million and $212 million for the years ended December 31, 2017, 2016 and 2015 respectively.


•	The Company has $291 million in letters of credit, of which $137 million is secured under the Charter Operating credit facility, primarily to its various casualty carriers as collateral for reimbursement of workers' compensation, auto liability and general liability claims.

•

Minimum pension funding requirements have not been presented in the table above as such amounts have not been determined beyond 2017. The Company made no cash contributions to the qualified pension plans in 2017; however, the Company is permitted to make discretionary cash contributions to the qualified pension plans in 2018. For the nonqualified pension plan, the Company contributed $18 million during 2017 and will continue to make contributions in 2018 to the extent benefits are paid.

Legal Proceedings

In August 2015, a purported stockholder of Charter, Matthew Sciabacucchi, filed a lawsuit in the Delaware Court of Chancery, on behalf of a putative class of Charter stockholders, challenging the transactions between Charter, TWC, A/N, and Liberty Broadband announced by Charter on May 26, 2015. The lawsuit names as defendants Liberty Broadband, Legacy Charter, the board of directors of Charter, and Charter. Plaintiff alleges that the Liberty Transactions improperly benefit Liberty Broadband at the expense of other Charter shareholders. Charter filed a motion to dismiss this litigation. The Court of Chancery has not yet made a final ruling on the motion to dismiss. Charter denies any liability, believes that it has substantial defenses, and intends to vigorously defend this suit. Although Charter is unable to predict the outcome of this lawsuit, it does not expect the outcome will have a material effect on its operations, financial condition or cash flows.

The California Attorney General and the Alameda County, California District Attorney are investigating whether certain of Legacy Charter’s waste disposal policies, procedures and practices are in violation of the California Business and Professions Code and the California Health and Safety Code. That investigation was commenced in January 2014. A similar investigation involving Legacy TWC was initiated in February 2012. Charter is cooperating with these investigations. While the Company is unable to predict the outcome of these investigations, it does not expect that the outcome will have a material effect on its operations, financial condition, or cash flows.

On December 19, 2011, Sprint Communications Company L.P. (“Sprint”) filed a complaint in the U.S. District Court for the District of Kansas alleging that Legacy TWC infringed certain U.S. patents purportedly relating to Voice over Internet Protocol (“VoIP”) services. A trial began on February 13, 2017. On March 3, 2017 the jury returned a verdict of $140 million against Legacy TWC and further concluded that Legacy TWC had willfully infringed Sprint’s patents. The court subsequently declined to enhance the damage award as a result of the purported willful infringement and awarded Sprint an additional $6 million, representing pre-judgment interest on the damages award. The Company has appealed the case to the United States Court of Appeals for the Federal Circuit. In addition to its appeal, the Company continues to pursue indemnity from one of its vendors. The impact of the verdict was reflected in the measurement period adjustments to net current liabilities as described in Note 3. The Company does not expect that the outcome of this litigation will have a material adverse effect on its operations or financial condition. The ultimate outcome of this litigation or the pursuit of indemnity against the Company’s vendor cannot be predicted.

Subsequently, on December 2, 2017, Sprint filed suit against Charter in the United States District Court for the District of Delaware. The new suit alleges infringement of 15 patents related to the Company's provision of voice services (ten of which were already asserted against Legacy TWC in the matter described above). Charter is investigating the allegations and will vigorously defend this case. While the Company is unable to predict the outcome of its investigations, it does not expect that this litigation will have a material effect on its operations, financial condition, or cash flows.

On October 23, 2015, the New York Office of the Attorney General (the “NY AG”) began an investigation of Legacy TWC's advertised Internet speeds and other Internet product advertising. On February 1, 2017, the NY AG filed suit in the Supreme Court for the State of New York alleging that Legacy TWC's advertising of Internet speeds was false and misleading. The suit seeks restitution and injunctive relief. The Company has moved to dismiss the NY AG’s complaint and the Company intends to defend itself vigorously. Although no assurances can be made that such defenses would ultimately be successful, the Company does not expect that the outcome of this litigation will have a material adverse effect on its operations, financial condition or cash flows.

The Company is a defendant or co-defendant in several additional lawsuits involving alleged infringement of various patents relating to various aspects of its businesses. Other industry participants are also defendants in certain of these cases. In the event that a court ultimately determines that the Company infringes on any intellectual property rights, the Company may be subject to substantial damages and/or an injunction that could require the Company or its vendors to modify certain products and services the Company offers to its subscribers, as well as negotiate royalty or license agreements with respect to the patents at issue. While the Company believes the lawsuits are without merit and intends to defend the actions vigorously, no assurance can be given that any adverse outcome would not be material to the Company’s consolidated financial condition, results of operations, or liquidity. The Company cannot predict the outcome of any such claims nor can it reasonably estimate a range of possible loss.

The Company is party to lawsuits, claims and regulatory inquiries that arise in the ordinary course of conducting its business. The ultimate outcome of these other legal matters pending against the Company cannot be predicted, and although such lawsuits and claims are not expected individually to have a material adverse effect on the Company’s consolidated financial condition, results of operations or liquidity, such lawsuits could have, in the aggregate, a material adverse effect on the Company’s consolidated financial condition, results of operations or liquidity. Whether or not the Company ultimately prevails in any particular lawsuit or claim, litigation can be time consuming and costly and injure the Company’s reputation.

Employee Benefit Plans (Notes)

12 Months Ended

Dec. 31, 2017

Employee Benefit Plans [Abstract]

Employee Benefit Plans

Pension Plans

The Company sponsors two qualified defined benefit pension plans, the TWC Pension Plan and the TWC Union Pension Plan, that provide pension benefits to a majority of Legacy TWC employees. The Company also provides a nonqualified defined benefit pension plan for certain employees under the TWC Excess Pension Plan.

Changes in the projected benefit obligation, fair value of plan assets and funded status of the pension plans from January 1 through December 31 are presented below:



	2017			2016
Projected benefit obligation at beginning of year	$	3,260		$	—
Benefit obligation assumed in the TWC Transaction	—			4,009
Service cost	—			86
Interest cost	133			87
Curtailment amendment	—			(675		)
Actuarial (gain) loss	406			(149		)
Settlement	(185		)	—
Benefits paid	(45		)	(98		)
Projected benefit obligation at end of year	$	3,569		$	3,260

Accumulated benefit obligation at end of year	$	3,569		$	3,260

Fair value of plan assets at beginning of year	$	2,946		$	—
Fair value of plan assets acquired in the TWC Transaction	—			2,877
Actual return on plan assets	539			162
Employer contributions	18			5
Settlement	(185		)	—
Benefits paid	(45		)	(98		)
Fair value of plan assets at end of year	$	3,273		$	2,946

Funded status	$	(296	)	$	(314	)

The projected benefit obligation, accumulated benefit obligation and fair value of plan assets for the qualified pension plans and the nonqualified pension plan as of December 31, 2017 and 2016 consisted of the following:



	Qualified Pension Plans				Nonqualified Pension Plan
	December 31,				December 31,
	2017		2016		2017		2016
Projected benefit obligation	$	3,528	$	3,204	$	41	$	56
Accumulated benefit obligation	$	3,528	$	3,204	$	41	$	56
Fair value of plan assets	$	3,273	$	2,946	$	—	$	—

Pretax amounts recognized in the consolidated balance sheet as of December 31, 2017 and 2016 consisted of the following:



	December 31,
	2017			2016
Noncurrent asset	$	1		$	1
Current liability	(5		)	(6		)
Long-term liability	(292		)	(309		)
Net amounts recognized in consolidated balance sheet	$	(296	)	$	(314	)

The components of net periodic benefit costs for the years ended December 31, 2017 and 2016 consisted of the following:



	Year Ended December 31,
	2017			2016
Service cost	$	—		$	86
Interest cost	133			87
Expected return on plan assets	(189		)	(116		)
Pension curtailment gain	—			(675		)
Remeasurement (gain) loss	55			(195		)
Net periodic pension (benefit) cost	$	(1	)	$	(813	)

During the year ended December 31, 2017, lump-sum distributions to qualified and nonqualified pension plan participants exceeded the estimated annual interest cost of the plans resulting in a settlement for accounting purposes. As a result, the pension liability and pension asset values were reassessed as of September 30, 2017 utilizing remeasurement date assumptions in accordance with the Company's mark-to-market pension accounting policy to record gains and losses in the period in which a remeasurement event occurs. The $55 million remeasurement loss recorded during the year ended December 31, 2017 was primarily driven by the adoption of the revised lump sum conversion mortality tables published by the IRS effective January 1, 2018 and the effects of a decrease of the discount rate from 4.20% at December 31, 2016 to 3.68% at December 31, 2017, partially offset by an actuarial gain on pension asset actual returns. Approximately $30 million of the remeasurement loss was recorded for the interim remeasurement event as of September 30, 2017 and $25 million was recorded for the annual remeasurement as of December 31, 2017.

The $195 million remeasurement gain recorded during the year ended December 31, 2016 was primarily driven by the effects of an increase of the discount rate from 3.99% at the closing date of the TWC Transaction to 4.20% at December 31, 2016 and a gain to record pension assets at December 31, 2016 fair values.

The discount rates used to determine benefit obligations as of December 31, 2017 and 2016 were 3.68% and 4.20%, respectively. The Company utilized the RP 2015/MP2015 mortality tables published by the Society of Actuaries to measure the benefit obligations as of December 31, 2017 and 2016.

Weighted average assumptions used to determine net periodic benefit costs for the years ended December 31, 2017 and 2016 consisted of the following:



	Year ended December 31,
	2017		2016
Expected long-term rate of return on plan assets	6.50	%	6.50	%
Discount rate ^(a)	3.88	%	3.72	%
Rate of compensation increase^(b)	—	%	—	%

^(a)

The discount rate used to determine net periodic pension benefit was 4.20% from January 1, 2017 through remeasurement date (September 30, 2017), and was 3.88% from remeasurement date through December 31, 2017. The discount rate used to determine net periodic pension benefit was 3.99% from the closing date of the TWC Transaction through remeasurement date (June 30, 2016), and was 3.72% from remeasurement date through December 31, 2016.


^(b)	The rate of compensation increase used to determine net periodic pension benefit was 4.25% from the closing date of the TWC Transaction through remeasurement date (June 30, 2016), and 0% thereafter. See “Pension Plan Curtailment Amendment” below for further discussion.

In developing the expected long-term rate of return on plan assets, the Company considered the pension portfolio’s composition, past average rate of earnings and the Company’s future asset allocation targets. The weighted average expected long-term rate of return on plan assets and discount rate used to determine net periodic pension benefit for the year ended December 31, 2018 are expected to be 6.50% and 3.68%, respectively. The Company determined the discount rates used to determine benefit obligations and net periodic pension benefit based on the yield of a large population of high quality corporate bonds with cash flows sufficient in timing and amount to settle projected future defined benefit payments.

Pension Plan Curtailment Amendment

Following the closing of the TWC Transaction, Charter amended the pension plans to freeze future benefit accruals to current active plan participants as of August 31, 2016. Effective September 1, 2016, no future compensation increases or future service will be credited to participants of the pension plans and new hires are not eligible to participate in the plans. Upon announcement and approval of the plan amendment, the assumptions underlying the pension liability and pension asset values were reassessed utilizing remeasurement date assumptions in accordance with Charter’s mark-to-market pension accounting policy to record gains and losses in the period in which a remeasurement event occurs. The $675 million curtailment gain recorded during the year ended December 31, 2016 was primarily driven by the reduction of the compensation rate assumption to 0% in accordance with the terms of the plan amendment, reflecting the pension liability at its accumulated benefit obligation instead of its projected benefit obligation at the remeasurement date.

Pension Plan Assets

The assets of the qualified pension plans are held in a master trust in which the qualified pension plans are the only participating plans (the “Master Trust”). The investment policy for the qualified pension plans is to manage the assets of the Master Trust with the objective to provide for pension liabilities to be met, maintaining retirement income security for the participants of the plans and their beneficiaries. The investment portfolio is a mix of pooled funds invested in fixed income and equity securities with the objective of matching plan liability performance, diversifying risk and achieving a target investment return. The pension plan’s Investment Committee establishes risk mitigation policies and regularly monitors investment performance, investment allocation policies, and the execution of these strategies. The Investment Committee engages a third-party investment firm with responsibility of executing the directives of the Investment Committee, monitoring the performance of individual investment managers of the Master Trust, and making adjustments and changes within defined parameters when necessary. On a periodic basis, the Investment Committee conducts a broad strategic review of its portfolio construction and investment allocation policies. Neither the Company, the Investment Committee, nor the third-party investment firm manages any assets internally or directly utilizes derivative instruments or hedging; however, the investment mandate of some investment managers allows the use of derivatives as components of their standard portfolio management strategies. Pension assets are managed in a balanced portfolio comprised of two major components: a return-seeking portion and a liability-matching portion. The expected role of return-seeking investments is to achieve a reasonable long-term growth of pension assets with a prudent level of risk using asset diversity in order to balance return and volatility, while the role of liability-matching investments is to provide a partial economic hedge against liability performance associated with changes in interest rates.

The Company adopted an investment strategy referred to as a de-risking glide path to increase the fixed income allocation as the funded status of the qualified pension plans improves. As the qualified pension plans reach set funded status milestones, the assets will be rebalanced to shift more assets from equity to fixed income. Based on the progress with this strategy, the target investment allocation for pension fund assets is permitted to vary within specified ranges subject to Investment Committee approval for return-seeking securities and liability-matching securities. The target and actual investment allocation of the qualified pension plans by asset category as of December 31, 2017 and 2016 consisted of the following:



			Actual Allocation
	Target		December 31,
	Allocation		2017		2016
Return-seeking securities	75.0	%	73.1	%	64.4	%
Liability-matching securities	25.0	%	26.7	%	35.4	%
Other investments	—	%	0.2	%	0.2	%

The following table sets forth the investment assets of the qualified pension plans, which exclude accrued investment income and investments with a fair value measured at net asset value per share as a practical expedient, by level within the fair value hierarchy as of December 31, 2017:



	December 31, 2017
	Fair Value		Level 1		Level 2		Level 3
Cash	$	3	$	3	$	—	$	—
Commingled equity funds^(a)	2,368		—		2,368		—
Corporate debt securities^(b)	1		—		1		—
Commingled bond funds^(a)	795		—		795		—
Collective trust funds^(c)	68		—		68		—
Total investment assets	3,235		$	3	$	3,232	$	—
Accrued investment income and other receivables^(d)	34
Investments measured at net asset value ^(e)	4
Fair value of plan assets	$	3,273

^(a)

Commingled funds primarily include global equity index, corporate bond, and U.S. treasury securities. The funds are valued using the net asset value provided by the administrator of the fund. The fair value of each fund is based on the fair value of securities in the portfolio, which represents the amount that the fund might reasonably expect to receive for the securities upon a sale, less liabilities, and then divided by the number of units outstanding. These funds are valued using observable inputs on either a daily or weekly basis and the resulting value serves as a basis for current transactions.


^(b)	Corporate debt securities are valued based on observable prices from the new issue market, benchmark quotes, secondary trading and dealer quotes. An option adjusted spread model is incorporated to adjust spreads of issues that have early redemption features and final spreads are added to the U.S. Treasury curve.

^(c)

Collective trust funds primarily consist of short-term investment strategies comprised of instruments issued or fully guaranteed by the U.S. government and/or its agencies and are valued using the net asset value provided by the administrator of the fund. The net asset value is based on the readily determinable value of the underlying assets owned by the fund, less liabilities, and then divided by the number of units outstanding.


^(d)	Accrued investment income includes dividends and interest receivable.

^(e)

Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. These investments primarily consist of hedge funds, which includes hard to value or illiquid securities. The fair value of each fund is based on the fair value of assets in the portfolio, which represents the amount that the fund might reasonably expect to receive for the assets upon a sale, less liabilities, and then divided by the number of units outstanding. Certain hedge funds report net asset value per share on a quarter lag. Shares of the funds are not redeemable and the underlying assets are anticipated to be liquidated and distributed to investors in the near term. There are no material unfunded commitments with respect to these investments. The fair value amounts presented in this table are intended to permit the reconciliation of the fair value hierarchy to the total fair value of plan assets discussed throughout this footnote.

The following table sets forth the investment assets of the qualified pension plans, which exclude accrued investment income and other receivables, accrued liabilities, and investments with a fair value measured at net asset value per share as a practical expedient, by level within the fair value hierarchy as of December 31, 2016:



	December 31, 2016
	Fair Value			Level 1		Level 2		Level 3
Cash	$	2		$	2	$	—	$	—
Common stocks:								—
Domestic^(a)	1,065			1,065		—		—
International^(a)	391			391		—		—
Commingled equity funds^(b)	348			—		348		—
Other equity securities^(c)	3			3		—		—
Corporate debt securities^(d)	394			—		394		—
Commingled bond funds^(b)	273			—		273		—
U.S. Treasury debt securities^(a)	260			260		—		—
Collective trust funds^(e)	75			—		75		—
U.S. government agency asset-backed debt securities^(f)	53			—		53		—
Corporate asset-backed debt securities^(g)	2			—		2		—
Other fixed-income securities^(h)	89			—		89		—
Total investment assets	2,955			$	1,721	$	1,234	$	—
Accrued investment income and other receivables⁽ⁱ⁾	107
Accrued liabilities⁽ⁱ⁾	(120		)
Investments measured at net asset value ^(j)	4
Fair value of plan assets	$	2,946


^(a)	Common stocks, mutual funds and U.S. Treasury debt securities are valued at the closing price reported on the active market on which the individual securities are traded. No single industry comprised a significant portion of common stock held by the qualified pension plan as of December 31, 2016.

^(b)

Commingled equity funds and commingled bond funds are valued using the net asset value provided by the administrator of the fund. The fair value of each fund is based on the fair value of securities in the portfolio, which represents the amount that the fund might reasonably expect to receive for the securities upon a sale, less liabilities, and then divided by the number of units outstanding. These funds are valued using observable inputs on either a daily or weekly basis and the resulting value serves as a basis for current transactions.


^(c)	Other equity securities consist of preferred stocks, which are valued at the closing price reported on the active market on which the individual securities are traded.


^(d)	Corporate debt securities are valued based on observable prices from the new issue market, benchmark quotes, secondary trading and dealer quotes. An option adjusted spread model is incorporated to adjust spreads of issues that have early redemption features and final spreads are added to the U.S. Treasury curve.

^(e)


^(f)	U.S. government agency asset-backed debt securities consist of pass-through mortgage-backed securities issued by the Federal Home Loan Mortgage Corporation and the Federal National Mortgage Association valued using available trade information, dealer quotes, market indices and research reports, spreads, bids and offers.


^(g)	Corporate asset-backed debt securities primarily consist of pass-through mortgage-backed securities issued by U.S. and foreign corporations valued using available trade information, dealer quotes, market indices and research reports, spreads, bids and offers.

^(h)

Other fixed-income securities consist of foreign government debt securities, municipal bonds and U.S. government agency debt securities, which are valued based on observable prices from the new issue market, benchmark quotes, secondary trading and dealer quotes. An option adjusted spread model is incorporated to adjust spreads of issues that have early redemption features and final spreads are added to the U.S. Treasury curve.

⁽ⁱ⁾

Accrued investment income and other receivables includes amounts receivable under foreign exchange contracts of $70 million as of December 31, 2016. Accrued liabilities includes amounts accrued under foreign exchange contracts of $71 million as of December 31, 2016. The fair value of the assets and liabilities associated with these foreign exchange contracts are presented on a gross basis and are valued using the exchange rates in effect for the applicable currencies as of the valuation date (a Level 1 fair value measurement).

^(j)

Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. These investments primarily consist of hedge funds valued utilizing net asset value provided by the administrator of the fund, which is based on the value of the underlying assets owned by the fund, less liabilities, and then divided by the number of units outstanding. Shares of the fund are not redeemable and the underlying assets are anticipated to be liquidated and distributed to investors in the near term. There are no material unfunded commitments with respect to these investments. The fair value amounts presented in this table are intended to permit the reconciliation of the fair value hierarchy to the total fair value of plan assets discussed throughout this footnote.

Pension Plan Contributions

The Company made no cash contributions to the qualified pension plans during the years ended December 31, 2017 and 2016; however, the Company may make discretionary cash contributions to the qualified pension plans in the future. Such contributions will be dependent on a variety of factors, including current and expected interest rates, asset performance, the funded status of the qualified pension plans and management’s judgment. For the nonqualified unfunded pension plan, the Company will continue to make contributions during 2018 to the extent benefits are paid.

Benefit payments for the pension plans are expected to be $186 million in 2018, $188 million in 2019, $191 million in 2020, $192 million in 2021, $193 million in 2022 and $944 million in 2023 to 2027.

Multiemployer Plans

The Company contributes to a number of multiemployer plans under the terms of collective-bargaining agreements that cover its union-represented employees. Such multiemployer plans provide medical, pension and retirement savings benefits to active employees and retirees. The Company made contributions to multiemployer plans of $18 million and $31 million for the years ended December 31, 2017 and 2016, respectively.

The risks of participating in multiemployer pension plans are different from single-employer pension plans in the following aspects: (a) assets contributed to a multiemployer pension plan by one employer may be used to provide benefits to employees of other participating employers, (b) if a participating employer stops contributing to the multiemployer pension plan, the unfunded obligations of the plan may be borne by the remaining participating employers and (c) if the Company chooses to stop participating in any of the multiemployer pension plans, it may be required to pay those plans an amount based on the underfunded status of the plan, referred to as a withdrawal liability. The Company records withdrawal liabilities as other long-term liabilities in the consolidated balance sheets. As of December 31, 2017, other long-term liabilities includes approximately $83 million related to the Company's withdrawal from a multiemployer pension plan.

The multiemployer pension plans to which the Company has contributed each received a Pension Protection Act “green” zone status in 2016. The zone status is based on the most recent information the Company received from the plan and is certified by the plan’s actuary. Among other factors, plans in the green zone are at least 80% funded.

Defined Contribution Benefit Plans

The Company’s employees may participate in the Charter Communications, Inc. 401(k) Plan (the “401(k) Plan”). Employees that qualify for participation can contribute up to 50% of their salary, on a pre-tax basis, subject to a maximum contribution limit as determined by the Internal Revenue Service. The Company’s matching contribution is discretionary and is equal to 100% of the amount of the salary reduction the participant elects to defer (up to 6% of the participant’s eligible compensation), excluding any catch-up contributions and is paid by the Company on a per pay period basis. The Company made contributions to the 401(k) plan totaling $274 million, $147 million and $23 million for the years ended December 31, 2017, 2016 and 2015, respectively.

For employees who are not eligible to participate in the Company’s long-term incentive plan and who are not covered by a collective bargaining agreement, the Company offers a contribution to the new Retirement Accumulation Plan ("RAP"), equal to 3% of eligible pay. The Company made contributions to the RAP totaling $139 million and $48 million for the years ended December 31, 2017 and 2016, respectively.

Recently Issued Accounting Standards (Notes)	12 Months Ended
Recently Issued Accounting Standards (Notes)	Dec. 31, 2017
Recently Issued Accounting Standards [Abstract]
Recently Issued Accounting Standards	Recently Issued Accounting Standards Accounting Standards Adopted January 1, 2017 In March 2016, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting, which includes multiple provisions intended to simplify various aspects of the accounting for share-based payments. The new standard (1) requires all excess tax benefits and deficiencies to be recognized as income tax expense or benefit in the income statement in the period in which they occur regardless of whether the benefit reduces taxes payable in the current period, (2) requires classification of excess tax benefits as an operating activity on the statements of cash flows, (3) allows an entity to make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures when they occur and (4) causes the threshold under which employee share-based awards partially settled in cash can qualify for equity classification to increase to the maximum statutory tax rates in the applicable jurisdiction. The new standard generally requires a modified retrospective transition through a cumulative-effect adjustment as of the beginning of the period of adoption, with certain provisions requiring either a prospective or retrospective transition. The Company adopted ASU 2016-09 on January 1, 2017. Upon adoption of ASU 2016-09, the Company recognized excess tax benefits in deferred tax assets that were previously not recognized in a cumulative-effect adjustment to retained earnings. The Company will prospectively record a deferred tax benefit or expense associated with the difference between book and tax for stock compensation expense. On January 1, 2017, the Company also established an accounting policy election to assume zero forfeitures for stock award grants and account for forfeitures when they occur which prospectively impacts stock compensation expense. The total impact to shareholders' equity was a $131 million increase to retained earnings, a $9 million increase to additional paid-in capital and a $140 million decrease to net deferred tax liabilities. In March 2017, the FASB issued ASU No. 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost ("ASU 2017-07"), which requires employers to report the service cost component of net periodic pension cost in the same line item as other compensation costs arising from services rendered during the period. The standard also requires the other components of net periodic cost be presented in the income statement separately from the service cost component and outside of a subtotal of income from operations. ASU 2017-07 will be effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The new standard requires retrospective application and allows a practical expedient that permits an employer to use the amounts disclosed in its pension plan footnote for the prior comparative periods as the estimation basis for applying the retrospective presentation. The Company early adopted ASU 2017-07 on January 1, 2017 and utilized the practical expedient to estimate the impact on the prior comparative period information presented in interim and annual financial statements. The Company previously recorded service cost with other compensation costs in operating costs and expenses in the consolidated statements of operations, and recorded other pension costs (benefits), in other operating expenses, net. Adoption of the standard results in the reclassification of other pension costs (benefits) to other expenses, net (non-operating). Adopting the standard reduced 2016 income from operations presented for comparative purposes in the 2017 annual financial statements by $899 million with a corresponding decrease to other expenses of $899 million, with no impact to net income. ASU 2017-07 does not impact the consolidated balance sheets or statements of cash flows. Accounting Standards Adopted January 1, 2018 In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”), which is a comprehensive revenue recognition standard that will supersede nearly all existing revenue recognition guidance under U.S. GAAP. The new standard provides a single principles-based, five-step model to be applied to all contracts with customers, which steps are to (1) identify the contract(s) with the customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract and (5) recognize revenue when each performance obligation is satisfied. Charter adopted ASU 2014-09 as of the January 1, 2018 using the modified retrospective transition method with a cumulative-effect adjustment to equity as will be fully presented in the Company’s Quarterly Report on Form 10-Q for the three months ended March 31, 2018. The adoption of the new standard did not have a material impact on the Company’s financial position or results of operation. Previously reported results will not be restated under this transition method. The Company has implemented new processes and internal controls to enable the preparation of financial information on adoption. The adoption results in the deferral of residential installation revenues and enterprise commission expenses over a period of time instead of recognized immediately and the reclassification to operating costs and expenses the amortization of up-front fees paid to market and serve customers who reside in residential MDUs instead of amortized as an intangible to depreciation and amortization expense. The adoption of ASU 2014-09 will also result in additional disclosures around nature and timing of the Company’s performance obligations, deferred revenue contract liabilities, deferred contract cost assets, as well as significant judgments and practical expedients used by the Company in applying the five-step revenue model. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”), which clarifies how entities should classify cash receipts and cash payments related to eight specific cash flow matters on the statement of cash flows, with the objective of reducing existing diversity in practice. The Company adopted ASU 2016-15 on January 1, 2018. The adoption of ASU 2016-15 did not have a material impact to the Company’s consolidated financial statements. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU 2016-18”) which requires that amounts generally described as restricted cash to be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU 2016-18 does not provide a definition of restricted cash or restricted cash equivalents. The Company adopted ASU 2016-18 on January 1, 2018. The new guidance will only be applicable to amounts described by the Company as restricted cash. The Company currently does not have amounts described as restricted cash; however, the Company's consolidated statement of cash flows for the year ended December 31, 2016 will be recast to present $22.3 billion of restricted cash as beginning of period cash and cash equivalents. In May 2017, the FASB issued ASU No. 2017-09, Scope of Modification Accounting ("ASU 2017-09"), which amends the scope of modification accounting for share-based payment arrangements. The ASU provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting. ASU 2017-09 is applied prospectively to awards modified on or after the effective date. The Company adopted ASU 2017-09 on January 1, 2018. The adoption of ASU 2017-09 did not have a material impact to the Company’s consolidated financial statements. Accounting Standards Not Yet Adopted In February 2016, the FASB issued ASU No. 2016-02, Leases (“ASU 2016-02”), which requires lessees to recognize almost all leases on their balance sheet as a right-of-use asset and a lease liability. Lessees are allowed to account for short-term leases (i.e., leases with a term of 12 months or less) off-balance sheet, consistent with current operating lease accounting. For income statement purposes, the FASB retained a dual model, requiring leases to be classified as either operating or finance. Classification will be based on criteria that are largely similar to those applied in current lease accounting, but without explicit bright lines. ASU 2016-02 will be effective for interim and annual periods beginning after December 15, 2018 (January 1, 2019 for the Company). The new standard currently requires a modified retrospective transition through a cumulative-effect adjustment as of the beginning of the earliest period presented in the financial statements, although an option for transition relief to not restate or make required disclosures under the new standard in comparative periods in the period of adoption was recently exposed by the FASB for public comment. The Company is currently in the process of evaluating the impact that the adoption of ASU 2016-02 will have on its consolidated financial statements including identifying the population of leases, evaluating technology solutions and collecting lease data. The Company expects its leases designated as operating leases in Note 20 will be reported on the consolidated balance sheets upon adoption. The Company is currently evaluating the impact to its consolidated financial statements as it relates to other embedded lease arrangements of the business. In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment (“ASU 2017-04”), which eliminates step two from the goodwill impairment test. Under the new standard, to the extent the carrying amount of a reporting unit exceeds the fair value, the Company will record an impairment charge equal to the difference. The impairment charge recognized should not exceed the total amount of goodwill allocated to the reporting unit. ASU 2017-04 will be effective for interim and annual periods beginning after December 15, 2019 (January 1, 2020 for the Company). Early adoption is permitted for interim or annual goodwill impairment tests performed after January 1, 2017. The Company is currently in the process of evaluating the impact that the adoption of ASU 2017-04 will have on its consolidated financial statements.

- Definition

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6507316

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=66092750

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22583-107794

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22580-107794

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accounting Change
-URI http://asc.fasb.org/extlink&oid=6503790

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22499-107794

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
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-Section 45
-Paragraph 13
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305

+ Details

Unaudited Quarterly Financial Data (Notes)

12 Months Ended

Dec. 31, 2017

Unaudited Quarterly Financial Data [Abstract]

Unaudited Quarterly Financial Data

The following table presents quarterly data for the periods presented in the consolidated statement of operations:



	Year Ended December 31, 2017
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	10,164	$	10,357	$	10,458	$	10,602
Income from operations	$	941	$	1,052	$	909	$	1,204
Net income attributable to Charter shareholders	$	155	$	139	$	48	$	9,553

Earnings per common share attributable to Charter shareholders:
Basic	$	0.58	$	0.53	$	0.19	$	39.66
Diluted	$	0.57	$	0.52	$	0.19	$	34.56

Weighted average common share outstanding:
Basic	269,004,817		263,460,911		253,923,805		240,833,636
Diluted	273,199,509		267,309,261		258,341,851		278,257,245



	Year Ended December 31, 2016
	First Quarter			Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	2,530		$	6,161	$	10,037	$	10,275
Income from operations	$	302		$	170	$	911	$	1,073
Net income (loss) attributable to Charter shareholders	$	(188	)	$	3,067	$	189	$	454

Earnings (loss) per common share attributable to Charter shareholders:
Basic	$	(1.86	)	$	16.73	$	0.70	$	1.69
Diluted	$	(1.86	)	$	15.17	$	0.69	$	1.67

Weighted average common share outstanding:
Basic	101,552,093			183,362,776		271,263,259		268,584,368
Diluted	101,552,093			205,214,266		275,373,202		272,624,270

Consolidating Schedules (Notes)

12 Months Ended

Dec. 31, 2017

Consolidating Schedules [Abstract]

Consolidating Schedules

Each of Charter Operating, TWC, LLC, TWCE, CCO Holdings and certain subsidiaries jointly, severally, fully and unconditionally guarantee the outstanding debt securities of the others (other than the CCO Holdings notes) on an unsecured senior basis and the condensed consolidating financial information has been prepared and presented pursuant to SEC Regulation S-X Rule 3-10, Financial Statements of Guarantors and Issuers of Guaranteed Securities Registered or Being Registered. Certain Charter Operating subsidiaries that are regulated telephone entities only become guarantor subsidiaries upon approval by regulators. This information is not intended to present the financial position, results of operations and cash flows of the individual companies or groups of companies in accordance with generally accepted accounting principles.

The "Intermediate Holding Companies" column includes the assets and liabilities of the captive insurance company, a company wholly-owned by Charter outside of Charter Holdings and not one of the holding companies that directly or indirectly own Charter Holdings. The “Charter Operating and Restricted Subsidiaries” column is presented to comply with the terms of the Credit Agreement.

The “Safari Escrow Entities” column included in the condensed consolidating financial statements for the year ended December 31, 2015 consists of CCOH Safari, CCO Safari II and CCO Safari III. CCOH Safari, CCO Safari II and CCO Safari III issued the CCOH Safari notes, CCO Safari II notes and the CCO Safari III credit facilities, respectively. Upon closing of the TWC Transaction, the CCOH Safari notes became obligations of CCO Holdings and CCO Holdings Capital and the CCO Safari II notes and CCO Safari III credit facilities became obligations of Charter Operating and Charter Communications Operating Capital Corp. CCOH Safari merged into CCO Holdings and CCO Safari II and CCO Safari III merged into Charter Operating.

The “Unrestricted Subsidiary” column included in the condensed consolidating financial statements for the year ended December 31, 2015 consists of CCO Safari which was a non-recourse subsidiary under the Credit Agreement and held the CCO Safari Term G Loans that were repaid in April 2015.

Condensed consolidating financial statements as of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015 follow.



Charter Communications, Inc.
Condensed Consolidating Balance Sheet
As of December 31, 2017

	Non-Guarantor Subsidiaries				Guarantor Subsidiaries
	Charter		Intermediate Holding Companies		CCO Holdings		Charter Operating and Restricted Subsidiaries		Eliminations			Charter Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	—	$	291	$	—	$	330	$	—		$	621
Accounts receivable, net	—		24		—		1,611		—			1,635
Receivables from related party	22		613		55		—		(690		)	—
Prepaid expenses and other current assets	22		34		—		243		—			299
Total current assets	44		962		55		2,184		(690		)	2,555

INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	—		336		—		33,552		—			33,888
Customer relationships, net	—		—		—		11,951		—			11,951
Franchises	—		—		—		67,319		—			67,319
Goodwill	—		—		—		29,554		—			29,554
Total investment in cable properties, net	—		336		—		142,376		—			142,712

INVESTMENT IN SUBSIDIARIES	56,263		63,558		81,980		—		(201,801		)	—
LOANS RECEIVABLE – RELATED PARTY	233		655		511		—		(1,399		)	—
OTHER NONCURRENT ASSETS	—		223		—		1,133		—			1,356

Total assets	$	56,540	$	65,734	$	82,546	$	145,693	$	(203,890	)	$	146,623

LIABILITIES AND SHAREHOLDERS’/MEMBER’S EQUITY

CURRENT LIABILITIES:
Accounts payable and accrued liabilities	$	4	$	900	$	280	$	7,861	$	—		$	9,045
Payables to related party	—		—		—		690		(690		)	—
Current portion of long-term debt	—		—		—		2,045		—			2,045
Total current liabilities	4		900		280		10,596		(690		)	11,090

LONG-TERM DEBT	—		—		18,708		49,478		—			68,186
LOANS PAYABLE – RELATED PARTY	—		—		—		1,399		(1,399		)	—
DEFERRED INCOME TAXES	17,268		14		—		32		—			17,314
OTHER LONG-TERM LIABILITIES	184		134		—		2,184		—			2,502

SHAREHOLDERS’/MEMBER’S EQUITY
Controlling interest	39,084		56,263		63,558		81,980		(201,801		)	39,084
Noncontrolling interests	—		8,423		—		24		—			8,447
Total shareholders’/member’s equity	39,084		64,686		63,558		82,004		(201,801		)	47,531

Total liabilities and shareholders’/member’s equity	$	56,540	$	65,734	$	82,546	$	145,693	$	(203,890	)	$	146,623



Charter Communications, Inc.
Condensed Consolidating Balance Sheet
As of December 31, 2016

	Non-Guarantor Subsidiaries				Guarantor Subsidiaries
	Charter		Intermediate Holding Companies		CCO Holdings		Charter Operating and Restricted Subsidiaries		Eliminations			Charter Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	57	$	154	$	—	$	1,324	$	—		$	1,535
Accounts receivable, net	34		11		—		1,387		—			1,432
Receivables from related party	170		451		62		—		(683		)	—
Prepaid expenses and other current assets	—		33		—		300		—			333
Total current assets	261		649		62		3,011		(683		)	3,300

INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	—		245		—		32,718		—			32,963
Customer relationships, net	—		—		—		14,608		—			14,608
Franchises	—		—		—		67,316		—			67,316
Goodwill	—		—		—		29,509		—			29,509
Total investment in cable properties, net	—		245		—		144,151		—			144,396

INVESTMENT IN SUBSIDIARIES	66,692		75,838		88,760		—		(231,290		)	—
LOANS RECEIVABLE – RELATED PARTY	—		640		494		—		(1,134		)	—
OTHER NONCURRENT ASSETS	—		214		—		1,157		—			1,371

Total assets	$	66,953	$	77,586	$	89,316	$	148,319	$	(233,107	)	$	149,067

LIABILITIES AND SHAREHOLDERS’/MEMBER’S EQUITY

CURRENT LIABILITIES:
Accounts payable and accrued liabilities	$	22	$	625	$	219	$	6,678	$	—		$	7,544
Payables to related party	—		—		—		683		(683		)	—
Current portion of long-term debt	—		—		—		2,028		—			2,028
Total current liabilities	22		625		219		9,389		(683		)	9,572

LONG-TERM DEBT	—		—		13,259		46,460		—			59,719
LOANS PAYABLE – RELATED PARTY	—		—		—		1,134		(1,134		)	—
DEFERRED INCOME TAXES	26,637		3		—		25		—			26,665
OTHER LONG-TERM LIABILITIES	155		64		—		2,526		—			2,745

SHAREHOLDERS’/MEMBER’S EQUITY
Controlling interest	40,139		66,692		75,838		88,760		(231,290		)	40,139
Noncontrolling interests	—		10,202		—		25		—			10,227
Total shareholders’/member’s equity	40,139		76,894		75,838		88,785		(231,290		)	50,366

Total liabilities and shareholders’/member’s equity	$	66,953	$	77,586	$	89,316	$	148,319	$	(233,107	)	$	149,067



Charter Communications, Inc.
Condensed Consolidating Statement of Operations
For the year ended December 31, 2017

	Non-Guarantor Subsidiaries						Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
REVENUES	$	90		$	1,186		$	—		$	41,578		$	(1,273	)	$	41,581

COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)	90			1,164			—			26,560			(1,273		)	26,541
Depreciation and amortization	—			9			—			10,579			—			10,588
Other operating (income) expenses, net	(101		)	3			—			444			—			346
	(11		)	1,176			—			37,583			(1,273		)	37,475
Income from operations	101			10			—			3,995			—			4,106

OTHER INCOME (EXPENSES):
Interest income (expense), net	5			20			(883		)	(2,232		)	—			(3,090		)
Loss on extinguishment of debt	—			—			(34		)	(6		)	—			(40		)
Gain on financial instruments, net	—			—			—			69			—			69
Other pension benefits	—			—			—			1			—			1
Other expense, net	—			(14		)	—			(4		)	—			(18		)
Equity in income of subsidiaries	680			882			1,799			—			(3,361		)	—
	685			888			882			(2,172		)	(3,361		)	(3,078		)

Income before income taxes	786			898			882			1,823			(3,361		)	1,028
INCOME TAX BENEFIT (EXPENSE)	9,109			1			—			(23		)	—			9,087
Consolidated net income	9,895			899			882			1,800			(3,361		)	10,115
Less: Net income – noncontrolling interests	—			(219		)	—			(1		)	—			(220		)
Net income	$	9,895		$	680		$	882		$	1,799		$	(3,361	)	$	9,895



Charter Communications, Inc.
Condensed Consolidating Statement of Operations
For the year ended December 31, 2016

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
REVENUES	$	251		$	1,004		$	—		$	—		$	29,003		$	(1,255	)	$	29,003

COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)	251			989			—			—			18,670			(1,255		)	18,655
Depreciation and amortization	—			5			—			—			6,902			—			6,907
Other operating expenses, net	262			1			—			—			722			—			985
	513			995			—			—			26,294			(1,255		)	26,547
Income (loss) from operations	(262		)	9			—			—			2,709			—			2,456

OTHER INCOME (EXPENSES):
Interest income (expense), net	—			14			(390		)	(727		)	(1,396		)	—			(2,499		)
Loss on extinguishment of debt	—			—			—			(110		)	(1		)	—			(111		)
Gain on financial instruments, net	—			—			—			—			89			—			89
Other pension benefits	—			—			—			—			899			—			899
Other expense, net	—			(11		)	—			—			(3		)	—			(14		)
Equity in income of subsidiaries	851			1,066			—			2,293			—			(4,210		)	—
	851			1,069			(390		)	1,456			(412		)	(4,210		)	(1,636		)

Income (loss) before income taxes	589			1,078			(390		)	1,456			2,297			(4,210		)	820
INCOME TAX BENEFIT (EXPENSE)	2,933			(5		)	—			—			(3		)	—			2,925
Consolidated net income (loss)	3,522			1,073			(390		)	1,456			2,294			(4,210		)	3,745
Less: Net income – noncontrolling interest	—			(222		)	—			—			(1		)	—			(223		)
Net income (loss)	$	3,522		$	851		$	(390	)	$	1,456		$	2,293		$	(4,210	)	$	3,522



Charter Communications, Inc.
Condensed Consolidating Statement of Operations
For the year ended December 31, 2015

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Unrestricted Subsidiary			Eliminations			Charter Consolidated
REVENUES	$	25		$	299		$	—		$	—		$	9,754		$	—		$	(324	)	$	9,754

COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)	25			299			—			—			6,426			—			(324		)	6,426
Depreciation and amortization	—			—			—			—			2,125			—			—			2,125
Other operating expenses, net	—			—			—			—			89			—			—			89
	25			299			—			—			8,640			—			(324		)	8,640
Income from operations	—			—			—			—			1,114			—			—			1,114

OTHER INCOME (EXPENSES):
Interest income (expense), net	—			8			(474		)	(642		)	(151		)	(47		)	—			(1,306		)
Loss on extinguishment of debt	—			—			(2		)	(123		)	—			(3		)	—			(128		)
Loss on financial instruments, net	—			—			—			—			(4		)	—			—			(4		)
Other expense, net	—			(7		)	—			—			—			—			—			(7		)
Equity in income (loss) of subsidiaries	(121		)	(168		)	—			1,073			(50		)	—			(734		)	—
	(121		)	(167		)	(476		)	308			(205		)	(50		)	(734		)	(1,445		)

Income (loss) before income taxes	(121		)	(167		)	(476		)	308			909			(50		)	(734		)	(331		)
INCOME TAX BENEFIT (EXPENSE)	(150		)	—			—			—			210			—			—			60
Consolidated net income (loss)	(271		)	(167		)	(476		)	308			1,119			(50		)	(734		)	(271		)
Less: Net (income) loss – noncontrolling interest	—			46			—			—			(46		)	—			—			—
Net income (loss)	$	(271	)	$	(121	)	$	(476	)	$	308		$	1,073		$	(50	)	$	(734	)	$	(271	)



Charter Communications, Inc.
Condensed Consolidating Statement of Comprehensive Income
For the year ended December 31, 2017

	Non-Guarantor Subsidiaries					Guarantor Subsidiaries
	Charter		Intermediate Holding Companies			CCO Holdings		Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
Consolidated net income	$	9,895	$	899		$	882	$	1,800		$	(3,361	)	$	10,115
Net impact of interest rate derivative instruments	5		5			5		5			(15		)	5
Foreign currency translation adjustment	1		1			1		1			(3		)	1
Consolidated comprehensive income	9,901		905			888		1,806			(3,379		)	10,121
Less: Comprehensive income attributable to noncontrolling interests	—		(219		)	—		(1		)	—			(220		)
Comprehensive income	$	9,901	$	686		$	888	$	1,805		$	(3,379	)	$	9,901



Charter Communications, Inc.
Condensed Consolidating Statement of Comprehensive Income (Loss)
For the year ended December 31, 2016

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
Consolidated net income (loss)	$	3,522		$	1,073		$	(390	)	$	1,456		$	2,294		$	(4,210	)	$	3,745
Net impact of interest rate derivative instruments	8			8			—			8			8			(24		)	8
Foreign currency translation adjustment	(2		)	(2		)	—			(2		)	(2		)	6			(2		)
Consolidated comprehensive income (loss)	3,528			1,079			(390		)	1,462			2,300			(4,228		)	3,751
Less: Comprehensive income attributable to noncontrolling interests	—			(222		)	—			—			(1		)	—			(223		)
Comprehensive income (loss)	$	3,528		$	857		$	(390	)	$	1,462		$	2,299		$	(4,228	)	$	3,528



Charter Communications, Inc.
Condensed Consolidating Statement of Comprehensive Income (Loss)
For the year ended December 31, 2015

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings		Charter Operating and Restricted Subsidiaries			Unrestricted Subsidiary			Eliminations			Charter Consolidated
Consolidated net income (loss)	$	(271	)	$	(167	)	$	(476	)	$	308	$	1,119		$	(50	)	$	(734	)	$	(271	)
Net impact of interest rate derivative instruments	9			9			—			9		9			—			(27		)	9
Consolidated comprehensive income (loss)	(262		)	(158		)	(476		)	317		1,128			(50		)	(761		)	(262		)
Less: Comprehensive (income) loss attributable to noncontrolling interests	—			46			—			—		(46		)	—			—			—
Comprehensive income (loss)	$	(262	)	$	(112	)	$	(476	)	$	317	$	1,082		$	(50	)	$	(761	)	$	(262	)



Charter Communications, Inc.
Condensed Consolidating Statement of Cash Flows
For the year ended December 31, 2017
+
	Non-Guarantor Subsidiaries						Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
NET CASH FLOWS FROM OPERATING ACTIVITIES	$	159		$	187		$	(814	)	$	12,422		$	—		$	11,954

CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	—			—			—			(8,681		)	—			(8,681		)
Change in accrued expenses related to capital expenditures	—			—			—			820			—			820
Purchases of cable systems, net	—			—			—			(9		)	—			(9		)
Real estate investments through variable interest entities	—			(105		)	—			—			—			(105		)
Contribution to subsidiaries	(115		)	—			(693		)	—			808			—
Distributions from subsidiaries	11,732			13,488			9,598			—			(34,818		)	—
Other, net	—			—			—			(123		)	—			(123		)
Net cash flows from investing activities	11,617			13,383			8,905			(7,993		)	(34,010		)	(8,098		)

CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	—			—			6,231			19,045			—			25,276
Repayments of long-term debt	—			—			(775		)	(15,732		)	—			(16,507		)
Borrowings (repayments) loans payable - related parties	(234		)	—			—			234			—			—
Payment for debt issuance costs	—			—			(59		)	(52		)	—			(111		)
Purchase of treasury stock	(11,715		)	—			—			—			—			(11,715		)
Proceeds from exercise of stock options	116			—			—			—			—			116
Purchase of noncontrolling interest	—			(1,665		)	—			—			—			(1,665		)
Distributions to noncontrolling interest	—			(151		)	—			(2		)	—			(153		)
Contributions from parent	—			115			—			693			(808		)	—
Distributions to parent	—			(11,732		)	(13,488		)	(9,598		)	34,818			—
Other, net	—			—			—			(11		)	—			(11		)
Net cash flows from financing activities	(11,833		)	(13,433		)	(8,091		)	(5,423		)	34,010			(4,770		)

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(57		)	137			—			(994		)	—			(914		)
CASH AND CASH EQUIVALENTS, beginning of period	57			154			—			1,324			—			1,535

CASH AND CASH EQUIVALENTS, end of period	$	—		$	291		$	—		$	330		$	—		$	621



Charter Communications, Inc.
Condensed Consolidating Statement of Cash Flows
For the year ended December 31, 2016

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
NET CASH FLOWS FROM OPERATING ACTIVITIES	$	(225	)	$	(36	)	$	(463	)	$	(711	)	$	9,476		$	—		$	8,041

CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	—			—			—			—			(5,325		)	—			(5,325		)
Change in accrued expenses related to capital expenditures	—			—			—			—			603			—			603
Purchases of cable systems, net	(26,781		)	(2,022		)	—			—			(7		)	—			(28,810		)
Contribution to subsidiaries	(1,013		)	(478		)	—			(437		)	—			1,928			—
Distributions from subsidiaries	24,552			26,899			—			5,096			—			(56,547		)	—
Change in restricted cash and cash equivalents	—			—			22,264			—			—			—			22,264
Other, net	—			—			—			—			(22		)	—			(22		)
Net cash flows from investing activities	(3,242		)	24,399			22,264			4,659			(4,751		)	(54,619		)	(11,290		)

CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	—			—			—			3,201			9,143			—			12,344
Repayments of long-term debt	—			—			—			(2,937		)	(7,584		)	—			(10,521		)
Borrowings (repayments) loans payable - related parties	—			(300		)	553			(71		)	(182		)	—			—
Payment for debt issuance costs	—			—			—			(73		)	(211		)	—			(284		)
Issuance of equity	5,000			—			—			—			—			—			5,000
Purchase of treasury stock	(1,562		)	—			—			—			—			—			(1,562		)
Proceeds from exercise of stock options	86			—			—			—			—			—			86
Settlement of restricted stock units	—			(59		)	—			—			—			—			(59		)
Purchase of noncontrolling interest	—			(218		)	—			—			—			—			(218		)
Distributions to noncontrolling interest	—			(96		)	—			—			—			—			(96		)
Proceeds from termination of interest rate derivatives	—			—			—			—			88			—			88
Contributions from parent	—			1,013			—			478			437			(1,928		)	—
Distributions to parent	—			(24,552		)	(22,353		)	(4,546		)	(5,096		)	56,547			—
Other, net	—			3			(1		)	—			(1		)	—			1
Net cash flows from financing activities	3,524			(24,209		)	(21,801		)	(3,948		)	(3,406		)	54,619			4,779

NET INCREASE IN CASH AND CASH EQUIVALENTS	57			154			—			—			1,319			—			1,530
CASH AND CASH EQUIVALENTS, beginning of period	—			—			—			—			5			—			5

CASH AND CASH EQUIVALENTS, end of period	$	57		$	154		$	—		$	—		$	1,324		$	—		$	1,535



Charter Communications, Inc.
Condensed Consolidating Statement of Cash Flows
For the year ended December 31, 2015

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Unrestricted Subsidiary			Eliminations			Charter Consolidated
NET CASH FLOWS FROM OPERATING ACTIVITIES:	$	(1	)	$	(5	)	$	(192	)	$	(663	)	$	3,275		$	(55	)	$	—		$	2,359

CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	—			—			—			—			(1,840		)	—			—			(1,840		)
Change in accrued expenses related to capital expenditures	—			—			—			—			28			—			—			28
Contribution to subsidiaries	(20		)	(90		)	—			(46		)	(24		)	—			180			—
Distributions from subsidiaries	26			376			—			715			—			—			(1,117		)	—
Change in restricted cash and cash equivalents	—			—			(18,667		)	—			—			3,514			—			(15,153		)
Other, net	—			(55		)	—			—			(12		)	—			—			(67		)
Net cash flows from investing activities	6			231			(18,667		)	669			(1,848		)	3,514			(937		)	(17,032		)

CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	—			—			21,790			2,700			1,555			—			—			26,045
Repayments of long-term debt	—			—			(3,500		)	(2,598		)	(1,745		)	(3,483		)	—			(11,326		)
Borrowings (repayments) loans payable - related parties	—			—			581			(18		)	(563		)	—			—			—
Payment for debt issuance costs	—			—			(12		)	(24		)	—			—			—			(36		)
Purchase of treasury stock	(38		)	—			—			—			—			—			—			(38		)
Proceeds from exercise of options and warrants	30			—			—			—			—			—			—			30
Contributions from parent	—			95			—			15			46			24			(180		)	—
Distributions to parent	—			(321		)	—			(81		)	(715		)	—			1,117			—
Net cash flows from financing activities	(8		)	(226		)	18,859			(6		)	(1,422		)	(3,459		)	937			14,675

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(3		)	—			—			—			5			—			—			2
CASH AND CASH EQUIVALENTS, beginning of period	3			—			—			—			—			—			—			3

CASH AND CASH EQUIVALENTS, end of period	$	—		$	—		$	—		$	—		$	5		$	—		$	—		$	5

- Definition

The entire disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.

+ References + Details

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2017

Summary of Significant Accounting Policies [Abstract]

Consolidation Policy

Consolidation

Cash and Cash Equivalents Policy

Cash and Cash Equivalents

Property, Plant and Equipment Policy

Property, Plant and Equipment

Depreciation is recorded using the straight-line composite method over management’s estimate of the useful lives of the related assets as follows:



Cable distribution systems		8-20 years
Customer premise equipment and installations		3-8 years
Vehicles and equipment		4-9 years
Buildings and improvements		15-40 years
Furniture, fixtures and equipment		7-10 years

Asset Retirement Obligations Policy

Asset Retirement Obligations

Valuation of Long-Lived Assets Policy

Valuation of Long-Lived Assets

Other Noncurrent Assets Policy

Other Noncurrent Assets

Revenue Recognition Policy

Revenue Recognition

The Company’s revenues by product line are as follows:



	Year Ended December 31,
	2017		2016		2015

Video	$	16,641	$	11,967	$	4,587
Internet	14,105		9,272		3,003
Voice	2,542		2,005		539
Residential revenue	33,288		23,244		8,129

Small and medium business	3,686		2,480		764
Enterprise	2,210		1,429		363
Commercial revenue	5,896		3,909		1,127

Advertising sales	1,510		1,235		309
Other	887		615		189
	$	41,581	$	29,003	$	9,754

Programming Costs Policy

Programming Costs

Advertising Costs Policy

Advertising Costs

Advertising costs associated with marketing the Company’s products and services are generally expensed as costs are incurred.

Multiple-Element Transactions Policy

Multiple-Element Transactions

Stock-Based Compensation Policy

Stock-Based Compensation

Pension Plans Policy

Pension Plans

Income Taxes Policy

Income Taxes

Segments Policy

Segments

Franchises, Goodwill and Other Intangible Assets (Policies)	12 Months Ended
	Dec. 31, 2017
Franchises, Goodwill and Other Intangible Assets [Abstract]
Goodwill and Intangible Assets Policy	Franchise rights represent the value attributed to agreements or authorizations with local and state authorities that allow access to homes in cable service areas. For valuation purposes, they are defined as the future economic benefits of the right to solicit and service potential customers (customer marketing rights), and the right to deploy and market new services to potential customers (service marketing rights). Management estimates the fair value of franchise rights at the date of acquisition and determines if the franchise has a finite life or an indefinite life. The Company has concluded that all of its franchises qualify for indefinite life treatment given that there are no legal, regulatory, contractual, competitive, economic or other factors which limit the period over which these rights will contribute to the Company's cash flows. The Company reassesses this determination periodically or whenever events or substantive changes in circumstances occur. All franchises are tested for impairment annually or more frequently as warranted by events or changes in circumstances. Franchise assets are aggregated into essentially inseparable units of accounting to conduct valuations. The units of accounting generally represent geographical clustering of the Company's cable systems into groups. The Company assesses qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that an indefinite lived intangible asset has been impaired. If, after this optional qualitative assessment, the Company determines that it is not more likely than not that an indefinite lived intangible asset has been impaired, then no further quantitative testing is necessary. In completing the qualitative impairment testing, the Company evaluates a multitude of factors that affect the fair value of our franchise assets. Examples of such factors include environmental and competitive changes within our operating footprint, actual and projected operating performance, the consistency of our operating margins, equity and debt market trends, including changes in our market capitalization, and changes in our regulatory and political landscape, among other factors. The Company performed a qualitative assessment in 2017, which also included consideration of a fair value appraisal performed for tax purposes in the beginning of 2017 as of a December 31, 2016 valuation date (the "Appraisal"). After consideration of the qualitative factors in 2017, including the results of the Appraisal, the Company concluded that it is more likely than not that the fair value of the franchise assets in each unit of accounting exceeds the carrying value of such assets and therefore did not perform a quantitative analysis at the assessment date. Periodically, the Company will elect to perform a quantitative analysis for impairment testing. If the Company elects or is required to perform a quantitative analysis to test its franchise assets for impairment, the methodology described below is utilized. If a quantitative analysis is performed, the estimated fair value of franchises is determined utilizing an income approach model based on the present value of the estimated discrete future cash flows attributable to each of the intangible assets identified assuming a discount rate. The fair value of franchises is determined based on estimated discrete discounted future cash flows using assumptions consistent with internal forecasts. The franchise after-tax cash flow is calculated as the after-tax cash flow generated by the potential customers obtained. The sum of the present value of the franchises’ after-tax cash flow in years 1 through 10 and the continuing value of the after-tax cash flow beyond year 10 yields the fair value of the franchises. This approach makes use of unobservable factors such as projected revenues, expenses, capital expenditures, customer trends, and a discount rate applied to the estimated cash flows. The determination of the franchise discount rate is derived from the Company’s weighted average cost of capital, which uses a market participant’s cost of equity and after-tax cost of debt and reflects the risks inherent in the cash flows. The Company estimates discounted future cash flows using reasonable and appropriate assumptions including among others, penetration rates for video, Internet, and voice; revenue growth rates; operating margins; and capital expenditures. The assumptions are based on the Company’s and its peers’ historical operating performance adjusted for current and expected competitive and economic factors surrounding the cable industry. The estimates and assumptions made in the Company’s valuations are inherently subject to significant uncertainties, many of which are beyond its control, and there is no assurance that these results can be achieved. The primary assumptions for which there is a reasonable possibility of the occurrence of a variation that would significantly affect the measurement value include the assumptions regarding revenue growth, programming expense growth rates, the amount and timing of capital expenditures, actual customer trends and the discount rate utilized. The fair value of goodwill is determined using both an income approach and market approach. The Company’s income approach model used for its goodwill valuation is consistent with that used for its franchise valuation noted above except that cash flows from the entire business enterprise are used for the goodwill valuation. The Company’s market approach model estimates the fair value of the reporting unit based on market prices in actual precedent transactions of similar businesses and market valuations of guideline public companies. Goodwill is tested for impairment as of November 30 of each year, or more frequently as warranted by events or changes in circumstances. Accounting guidance also permits an optional qualitative assessment for goodwill to determine whether it is more likely than not that the carrying value of a reporting unit exceeds its fair value. If, after this qualitative assessment, the Company determines that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount then no further quantitative testing would be necessary. If the Company elects or is required to perform the two-step test under the accounting guidance, the first step involves a comparison of the estimated fair value of the reporting unit to its carrying amount. If the estimated fair value of the reporting unit exceeds its carrying amount, goodwill of the reporting unit is not considered impaired and the second step of the goodwill impairment is not necessary. If the carrying amount of a reporting unit exceeds its estimated fair value, then the second step of the goodwill impairment test must be performed, and a comparison of the implied fair value of the reporting unit’s goodwill is compared to its carrying amount to determine the amount of impairment, if any. As with the Company’s franchise impairment testing, in 2017 the Company elected to perform a qualitative goodwill impairment assessment, which incorporated the results of the Appraisal and consideration of the same qualitative factors relevant to the Company's franchise impairment testing. As a result of that assessment, the Company concluded that goodwill is not impaired. Customer relationships are recorded at fair value as of the date acquired less accumulated amortization. Customer relationships, for valuation purposes, represent the value of the business relationship with existing customers, and are calculated by projecting the discrete future after-tax cash flows from these customers, including the right to deploy and market additional services to these customers. The present value of these after-tax cash flows yields the fair value of the customer relationships. The use of different valuation assumptions or definitions of franchises or customer relationships, such as our inclusion of the value of selling additional services to our current customers within customer relationships versus franchises, could significantly impact our valuations and any resulting impairment. Customer relationships are amortized on an accelerated sum of years’ digits method over useful lives of 8-15 years based on the period over which current customers are expected to generate cash flows. The Company periodically evaluates the remaining useful lives of its customer relationships to determine whether events or circumstances warrant revision to the remaining periods of amortization. Customer relationships are evaluated for impairment upon the occurrence of events or changes in circumstances indicating that the carrying amount of an asset may not be recoverable. Customer relationships are deemed impaired when the carrying value exceeds the projected undiscounted future cash flows associated with the customer relationships. No impairment of customer relationships was recorded in the years ended December 31, 2017, 2016 or 2015. The fair value of trademarks is determined using the relief-from-royalty method, a variation of the income approach, which applies a fair royalty rate to estimated revenue derived under the Company’s trademarks. The fair value of the intangible is estimated to be the present value of the royalty saved because the Company owns the trademarks. Royalty rates are estimated based on a review of market royalty rates in the communications and entertainment industries. As the Company expects to continue to use each trademark indefinitely, trademarks have been assigned an indefinite life and are tested annually for impairment using either a qualitative analysis or quantitative analysis as elected by management.

Accounting for Derivative Instruments and Hedging Activities (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting for Derivative Instruments and Hedging Activities [Abstract]
Derivative Instruments Policy	The Company uses derivative instruments to manage interest rate risk on variable debt and foreign exchange risk on the Sterling Notes, and does not hold or issue derivative instruments for speculative trading purposes.

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Summary of Significant Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment Useful Lives

Depreciation is recorded using the straight-line composite method over management’s estimate of the useful lives of the related assets as follows:



Cable distribution systems		8-20 years
Customer premise equipment and installations		3-8 years
Vehicles and equipment		4-9 years
Buildings and improvements		15-40 years
Furniture, fixtures and equipment		7-10 years

Schedule of Revenues by Product Line

The Company’s revenues by product line are as follows:



	Year Ended December 31,
	2017		2016		2015

Video	$	16,641	$	11,967	$	4,587
Internet	14,105		9,272		3,003
Voice	2,542		2,005		539
Residential revenue	33,288		23,244		8,129

Small and medium business	3,686		2,480		764
Enterprise	2,210		1,429		363
Commercial revenue	5,896		3,909		1,127

Advertising sales	1,510		1,235		309
Other	887		615		189
	$	41,581	$	29,003	$	9,754

Mergers and Acquisitions (Tables)

12 Months Ended

Dec. 31, 2017

Mergers and Acquisitions:

Schedule of Pro Forma Financial Information

The pro forma financial information also should not be considered representative of the Company’s future financial condition or results of operations.



	Year Ended December 31,
	2016		2015
Revenues	$	40,023	$	37,394
Net income attributable to Charter shareholders	$	1,070	$	159
Earnings per common share attributable to Charter shareholders:
Basic	$	3.97	$	0.59
Diluted	$	3.91	$	0.58

TWC Transaction [Member]

Mergers and Acquisitions:

Schedule of Calculation and Final Allocation of Purchase Price

TWC Allocation of Purchase Price



Cash and cash equivalents	$	1,058
Current assets	1,417
Property, plant and equipment	21,413
Customer relationships	13,460
Franchises	54,085
Goodwill	28,337
Other noncurrent assets	1,040
Accounts payable and accrued liabilities	(4,107		)
Debt	(24,900		)
Deferred income taxes	(28,120		)
Other long-term liabilities	(3,162		)
Noncontrolling interests	(4		)
	$	60,517

Bright House Transaction [Member]

Mergers and Acquisitions:

Schedule of Calculation and Final Allocation of Purchase Price

Bright House Allocation of Purchase Price



Current assets	$	131
Property, plant and equipment	2,884
Customer relationships	2,150
Franchises	7,225
Goodwill	44
Other noncurrent assets	86
Accounts payable and accrued liabilities	(330		)
Other long-term liabilities	(12		)
Noncontrolling interests	(22		)
	$	12,156

Franchises, Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Franchises, Goodwill and Other Intangible Assets [Abstract]

Schedule of Intangible Assets

As of December 31, 2017 and 2016, indefinite-lived and finite-lived intangible assets are presented in the following table:



	December 31,
	2017							2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Indefinite-lived intangible assets:
Franchises	$	67,319	$	—		$	67,319	$	67,316	$	—		$	67,316
Goodwill	29,554		—			29,554		29,509		—			29,509
Trademarks	159		—			159		159		—			159
Other intangible assets	—		—			—		4		—			4
	$	97,032	$	—		$	97,032	$	96,988	$	—		$	96,988

Finite-lived intangible assets:
Customer relationships	$	18,229	$	(6,278	)	$	11,951	$	18,226	$	(3,618	)	$	14,608
Other intangible assets	731		(201		)	530		615		(128		)	487
	$	18,960	$	(6,479	)	$	12,481	$	18,841	$	(3,746	)	$	15,095

Schedule of Expected Future Amortization Expense

The Company expects amortization expense on its finite-lived intangible assets will be as follows.



2018	$	2,478
2019	2,195
2020	1,903
2021	1,619
2022	1,342
Thereafter	2,944
	$	12,481

Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt consists of the following as of December 31, 2017 and 2016:



	December 31,
	2017				2016
	Principal Amount		Accreted Value		Principal Amount		Accreted Value
CCO Holdings, LLC:
5.250% senior notes due March 15, 2021	$	500	$	497	$	500	$	496
6.625% senior notes due January 31, 2022	—		—		750		741
5.250% senior notes due September 30, 2022	1,250		1,235		1,250		1,232
5.125% senior notes due February 15, 2023	1,000		993		1,000		992



4.000% senior notes due March 1, 2023	500			495			—			—
5.125% senior notes due May 1, 2023	1,150			1,143			1,150			1,141
5.750% senior notes due September 1, 2023	500			496			500			496
5.750% senior notes due January 15, 2024	1,000			992			1,000			991
5.875% senior notes due April 1, 2024	1,700			1,687			1,700			1,685
5.375% senior notes due May 1, 2025	750			745			750			744
5.750% senior notes due February 15, 2026	2,500			2,464			2,500			2,460
5.500% senior notes due May 1, 2026	1,500			1,489			1,500			1,487
5.875% senior notes due May 1, 2027	800			794			800			794
5.125% senior notes due May 1, 2027	3,250			3,216			—			—
5.000% senior notes due February 1, 2028	2,500			2,462			—			—
Charter Communications Operating, LLC:
3.579% senior notes due July 23, 2020	2,000			1,988			2,000			1,983
4.464% senior notes due July 23, 2022	3,000			2,977			3,000			2,973
4.908% senior notes due July 23, 2025	4,500			4,462			4,500			4,458
3.750% senior notes due February 15, 2028	1,000			985			—			—
4.200% senior notes due March 15, 2028	1,250			1,238			—			—
6.384% senior notes due October 23, 2035	2,000			1,981			2,000			1,980
6.484% senior notes due October 23, 2045	3,500			3,466			3,500			3,466
5.375% senior notes due May 1, 2047	2,500			2,506			—			—
6.834% senior notes due October 23, 2055	500			495			500			495
Credit facilities	9,479			9,387			8,916			8,814
Time Warner Cable, LLC:
5.850% senior notes due May 1, 2017	—			—			2,000			2,028
6.750% senior notes due July 1, 2018	2,000			2,045			2,000			2,135
8.750% senior notes due February 14, 2019	1,250			1,337			1,250			1,412
8.250% senior notes due April 1, 2019	2,000			2,148			2,000			2,264
5.000% senior notes due February 1, 2020	1,500			1,579			1,500			1,615
4.125% senior notes due February 15, 2021	700			730			700			739
4.000% senior notes due September 1, 2021	1,000			1,045			1,000			1,056
5.750% sterling senior notes due June 2, 2031 ^(a)	845			912			770			834
6.550% senior debentures due May 1, 2037	1,500			1,686			1,500			1,691
7.300% senior debentures due July 1, 2038	1,500			1,788			1,500			1,795
6.750% senior debentures due June 15, 2039	1,500			1,724			1,500			1,730
5.875% senior debentures due November 15, 2040	1,200			1,258			1,200			1,259
5.500% senior debentures due September 1, 2041	1,250			1,258			1,250			1,258
5.250% sterling senior notes due July 15, 2042 ^(b)	879			847			800			771
4.500% senior debentures due September 15, 2042	1,250			1,137			1,250			1,135
Time Warner Cable Enterprises LLC:
8.375% senior debentures due March 15, 2023	1,000			1,232			1,000			1,273
8.375% senior debentures due July 15, 2033	1,000			1,312			1,000			1,324
Total debt	69,003			70,231			60,036			61,747
Less current portion:
5.850% senior notes due May 1, 2017	—			—			(2,000		)	(2,028		)
6.750% senior notes due July 1, 2018	(2,000		)	(2,045		)	—			—
Long-term debt	$	67,003		$	68,186		$	58,036		$	59,719


^(a)	Principal amount includes £625 million valued at $845 million and $770 million as of December 31, 2017 and December 31, 2016, respectively, using the exchange rate at that date.


^(b)	Principal amount includes £650 million valued at $879 million and $800 million as of December 31, 2017 and December 31, 2016, respectively, using the exchange rate at that date.

Schedule of Long-Term Debt Future Principal Payments



Year	Amount
2018	$	2,207
2019	3,457
2020	3,707
2021	2,407
2022	4,457
Thereafter	52,768
	$	69,003

Common Stock (Tables)

12 Months Ended

Dec. 31, 2017

Common Stock [Abstract]

Schedule of Changes in Common Stock Outstanding

The following table summarizes our shares outstanding for the three years ended December 31, 2017:



	Class A Common Stock		Class B Common Stock
BALANCE, December 31, 2014	111,999,687		—
Exercise of stock options	579,173		—
Restricted stock issuances, net of cancellations	6,920		—
Restricted stock unit vesting	98,831		—
Purchase of treasury stock	(245,783	)	—
BALANCE, December 31, 2015	112,438,828		—
Reorganization of common stock	(10,771,404	)	—
Issuance of shares in TWC Transaction	143,012,155		—
Issuance of shares to Liberty Broadband for cash	25,631,339		—
Issuance of share to A/N in Bright House Transaction	—		1
Exchange of Charter Holdings units held by A/N (see Note 11)	1,852,832		—
Exercise of stock options	1,014,664		—
Restricted stock issuances, net of cancellations	9,811		—
Restricted stock unit vesting	1,738,792		—
Purchase of treasury stock	(6,029,225	)	—
BALANCE, December 31, 2016	268,897,792		1
Exchange of Charter Holdings units held by A/N (see Note 11)	1,263,497		—
Exercise of stock options	1,044,526		—
Restricted stock issuances, net of cancellations	9,517		—
Restricted stock unit vesting	1,159,083		—
Purchase of treasury stock	(33,868,356	)	—
BALANCE, December 31, 2017	238,506,059		1

Class of Treasury Stock

The following represents the Company's purchase of Charter Class A common stock and the effect on the consolidated statements of cash flows during the years ended December 31, 2017, 2016 and 2015.



	Year Ended December 31,
	2017			2016			2015
	Shares	$		Shares	$		Shares	$
Share buybacks	33,375,878	$	11,570	5,070,656	$	1,346	—	$	—
Income tax withholding	447,455	145		908,066	216		177,696	38
Exercise cost	45,023			50,503			44,541
	33,868,356	$	11,715	6,029,225	$	1,562	222,237	$	38

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Measurements [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The Company’s financial instruments that are accounted for at fair value on a recurring basis as of December 31, 2017 and 2016 are presented in the table below.



	December 31,
	2017				2016
	Level 1		Level 2		Level 1		Level 2
Assets
Money market funds	$	291	$	—	$	1,205	$	—
Liabilities
Cross-currency derivative instruments	$	—	$	25	$	—	$	251

Summary of Carrying and Fair Value of Debt

A summary of the carrying value and fair value of the Company’s debt at December 31, 2017 and 2016 is as follows:



	December 31,
	2017				2016
	Carrying Value		Fair Value		Carrying Value		Fair Value
Debt
Senior notes and debentures	$	60,844	$	63,443	$	52,933	$	55,203
Credit facilities	$	9,387	$	9,440	$	8,814	$	8,943

Other Operating Expenses, Net (Tables)

12 Months Ended

Dec. 31, 2017

Other Operating Expenses, Net [Abstract]

Schedule of Other Operating Expenses, Net

Other operating expenses, net consist of the following for the years presented:



	Year Ended December 31,
	2017			2016			2015
Merger and restructuring costs	$	351		$	970		$	70
Special charges, net	(21		)	17			15
(Gain) loss on sale of assets, net	16			(2		)	4
	$	346		$	985		$	89

Schedule of Accrued Merger And Restructuring Costs by Type of Cost

Changes in accruals for merger and restructuring costs from January 1, 2016 through December 31, 2017 are presented below:



	Employee Retention Costs			Employee Termination Costs			Transaction and Advisory Costs			Other Costs			Total
Liability, December 31, 2015	$	—		$	—		$	33		$	—		$	33
Liability assumed in the Transactions	80			9			3			—			92
Costs incurred	26			337			318			41			722
Cash paid	(99		)	(102		)	(329		)	(41		)	(571		)
Remaining liability, December 31, 2016	7			244			25			—			276

Costs incurred	4			226			4			68			302
Cash paid	(10		)	(298		)	(12		)	(60		)	(380		)
Remaining liability, December 31, 2017	$	1		$	172		$	17		$	8		$	198

Stock Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2017

Stock Compensation Plans [Abstract]

Schedule of Stock Option Activity



	Year Ended December 31,
	2017								2016								2015
	Shares				Weighted Average Exercise Price		Aggregate Intrinsic Value		Shares				Weighted Average Exercise Price		Aggregate Intrinsic Value		Shares				Weighted Average Exercise Price		Aggregate Intrinsic Value
Outstanding, beginning of period	9,592				$	181.39			3,923				$	122.03			3,336				$	95.42
Granted	1,175				$	302.87			5,999				$	218.91			1,176				$	177.14
Converted TWC awards	—				$	—			839				$	86.46			—				$	—
Exercised	(1,044		)		$	124.32	$	219	(1,015		)		$	96.33	$	146	(524		)		$	72.27	$	68
Canceled	(74		)		$	251.63			(154		)		$	173.98			(65		)		$	155.23
Outstanding, end of period	9,649				$	201.83	$	1,295	9,592				$	181.39			3,923				$	122.03

Weighted average remaining contractual life	8			years					8			years					7			years
Options exercisable, end of period	1,734				$	90.56	$	425	1,665				$	71.71			1,224				$	61.88
Options expected to vest, end of period	7,915				$	226.20	$	869
Weighted average fair value of options granted	$	73.67							$	47.42							$	66.20

Schedule of Restricted Stock Activity



	Year Ended December 31,
	2017				2016				2015
	Shares		Weighted Average Grant Price		Shares		Weighted Average Grant Price		Shares		Weighted Average Grant Price
Outstanding, beginning of period	10		$	231.81	197		$	65.79	390		$	63.30
Granted	10		$	343.10	10		$	231.83	6		$	201.34
Vested	(10	)	$	231.81	(197	)	$	65.79	(199	)	$	65.16
Canceled	—		$	—	—		$	—	—		$	—
Outstanding, end of period	10		$	343.10	10		$	231.81	197		$	65.79

Schedule of Restricted Stock Unit Activity



	Year Ended December 31,
	2017				2016				2015
	Shares		Weighted Average Grant Price		Shares		Weighted Average Grant Price		Shares		Weighted Average Grant Price
Outstanding, beginning of period	3,313		$	192.41	337		$	150.96	294		$	115.01
Granted	285		$	302.76	895		$	213.09	148		$	179.17
Converted TWC awards	—		$	—	4,162		$	224.90	—		$	—
Vested	(1,159	)	$	216.21	(1,739	)	$	219.60	(90	)	$	78.65
Canceled	(48	)	$	234.99	(342	)	$	219.91	(15	)	$	155.43
Outstanding, end of period	2,391		$	192.96	3,313		$	192.41	337		$	150.96

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Taxes [Abstract]

Schedule of Income Tax Benefit (Expense)



	Year Ended December 31,
	2017			2016			2015
Current expense:
Federal income taxes	$	(4	)	$	(4	)	$	(1	)
State income taxes	(25		)	(29		)	(4		)
Current income tax expense	(29		)	(33		)	(5		)

Deferred benefit:
Federal income taxes	9,082			2,549			53
State income taxes	34			409			12
Deferred income tax benefit	9,116			2,958			65
Income tax benefit	$	9,087		$	2,925		$	60

Schedule of Effective Tax Rate Reconciliation

The Company’s effective tax rate differs from that derived by applying the applicable federal income tax rate of 35% for the years ended December 31, 2017, 2016, and 2015, respectively, as follows:



	Year Ended December 31,
	2017			2016			2015
Statutory federal income taxes	$	(360	)	$	(288	)	$	116
Statutory state income taxes, net	(34		)	(36		)	(4		)
Nondeductible expenses	(21		)	(62		)	(12		)
Net income attributable to noncontrolling interest	84			78			—
Change in valuation allowance	14			3,171			(250		)
Excess stock compensation	88			—			—
Organizational restructuring	—			—			187
Federal tax credits	21			16			18
Tax rate changes	9,293			65			4
Other	2			(19		)	1
Income tax benefit	$	9,087		$	2,925		$	60

Schedule of Deferred Tax Assets (Liabilities)

The tax effects of these temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2017 and 2016 are presented below.



	December 31,
	2017			2016
Deferred tax assets:
Loss carryforwards	$	2,657		$	4,127
Accrued and other	287			243
Total gross deferred tax assets	2,944			4,370
Less: valuation allowance	(137		)	(200		)
Deferred tax assets	$	2,807		$	4,170

Deferred tax liabilities:
Investment in partnership	$	(20,107	)	$	(30,832	)
Accrued and other	(14		)	(3		)
Deferred tax liabilities	(20,121		)	(30,835		)
Net deferred tax liabilities	$	(17,314	)	$	(26,665	)

Roll Forward of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits, exclusive of interest and penalties, included in other long-term liabilities on the accompanying consolidated balance sheets of the Company is as follows:



BALANCE, December 31, 2015	$	5
Additions on prior year tax positions	1
Additions on current year tax positions	7
Additions on tax positions assumed in the TWC Transaction	181
Reductions on settlements and expirations with taxing authorities	(22		)

BALANCE, December 31, 2016	$	172
Additions on prior year tax positions	1
Additions on current year tax positions	12
Reductions on settlements and expirations with taxing authorities	(21		)

BALANCE, December 31, 2017	$	164

Earnings (Loss) Per Share (Tables)

12 Months Ended

Dec. 31, 2017

Earnings (Loss) Per Share [Abstract]

Schedule of Earnings (Loss) per Share

The following is the computation of diluted earnings per common share for the years presented.



	Year Ended December 31,
	2017		2016
Numerator:
Net income attributable to Charter shareholders	$	9,895	$	3,522
Effect of dilutive securities:
Charter Holdings common units	69		129
Charter Holdings convertible preferred units	150		93
Net income attributable to Charter shareholders after assumed conversions	$	10,114	$	3,744

Denominator:
Weighted average common shares outstanding, basic	256,720,715		206,539,100
Effect of dilutive securities:
Assumed exercise or issuance of shares relating to stock plans	4,012,145		3,088,871
Weighted average Charter Holdings common units	26,637,596		19,333,227
Weighted average Charter Holdings convertible preferred units	9,333,500		5,830,241
Weighted average common shares outstanding, diluted	296,703,956		234,791,439

Basic earnings per common share attributable to Charter shareholders	$	38.55	$	17.05
Diluted earnings per common share attributable to Charter shareholders	$	34.09	$	15.94

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies [Abstract]

Schedule of Contractual Obligation Payments

The following table summarizes the Company’s payment obligations as of December 31, 2017 for its contractual obligations.



	Total		2018		2019		2020		2021		2022		Thereafter
Capital and Operating Lease Obligations ^(a)	$	1,512	$	286	$	235	$	199	$	165	$	132	$	495
Programming Minimum Commitments ^(b)	164		103		39		22		—		—		—
Other ^(c)	13,626		1,917		1,031		839		653		499		8,687
	$	15,302	$	2,306	$	1,305	$	1,060	$	818	$	631	$	9,182


^(a)	The Company leases certain facilities and equipment under non-cancelable capital and operating leases. Capital lease obligations represented $123 million of total capital and operating lease obligations as of December 31, 2017. Leases and rental costs charged to expense for the years ended December 31, 2017, 2016 and 2015 were $321 million, $215 million, $49 million, respectively.

^(b)

^(c)

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Employee Benefit Plans [Abstract]

Schedule of Changes in Projected Benefit Obligations and Fair Value of Plan Assets

Changes in the projected benefit obligation, fair value of plan assets and funded status of the pension plans from January 1 through December 31 are presented below:



	2017			2016
Projected benefit obligation at beginning of year	$	3,260		$	—
Benefit obligation assumed in the TWC Transaction	—			4,009
Service cost	—			86
Interest cost	133			87
Curtailment amendment	—			(675		)
Actuarial (gain) loss	406			(149		)
Settlement	(185		)	—
Benefits paid	(45		)	(98		)
Projected benefit obligation at end of year	$	3,569		$	3,260

Accumulated benefit obligation at end of year	$	3,569		$	3,260

Fair value of plan assets at beginning of year	$	2,946		$	—
Fair value of plan assets acquired in the TWC Transaction	—			2,877
Actual return on plan assets	539			162
Employer contributions	18			5
Settlement	(185		)	—
Benefits paid	(45		)	(98		)
Fair value of plan assets at end of year	$	3,273		$	2,946

Funded status	$	(296	)	$	(314	)



	Qualified Pension Plans				Nonqualified Pension Plan
	December 31,				December 31,
	2017		2016		2017		2016
Projected benefit obligation	$	3,528	$	3,204	$	41	$	56
Accumulated benefit obligation	$	3,528	$	3,204	$	41	$	56
Fair value of plan assets	$	3,273	$	2,946	$	—	$	—

Schedule of Amounts Recognized in the Balance Sheet

Pretax amounts recognized in the consolidated balance sheet as of December 31, 2017 and 2016 consisted of the following:



	December 31,
	2017			2016
Noncurrent asset	$	1		$	1
Current liability	(5		)	(6		)
Long-term liability	(292		)	(309		)
Net amounts recognized in consolidated balance sheet	$	(296	)	$	(314	)

Schedule of Net Benefit Costs

The components of net periodic benefit costs for the years ended December 31, 2017 and 2016 consisted of the following:



	Year Ended December 31,
	2017			2016
Service cost	$	—		$	86
Interest cost	133			87
Expected return on plan assets	(189		)	(116		)
Pension curtailment gain	—			(675		)
Remeasurement (gain) loss	55			(195		)
Net periodic pension (benefit) cost	$	(1	)	$	(813	)

Schedule of Assumptions Used in the Calculation of Net Benefit Cost

Weighted average assumptions used to determine net periodic benefit costs for the years ended December 31, 2017 and 2016 consisted of the following:



	Year ended December 31,
	2017		2016
Expected long-term rate of return on plan assets	6.50	%	6.50	%
Discount rate ^(a)	3.88	%	3.72	%
Rate of compensation increase^(b)	—	%	—	%

^(a)


^(b)	The rate of compensation increase used to determine net periodic pension benefit was 4.25% from the closing date of the TWC Transaction through remeasurement date (June 30, 2016), and 0% thereafter. See “Pension Plan Curtailment Amendment” below for further discussion.

Schedule of Allocation of Plan Assets

The target and actual investment allocation of the qualified pension plans by asset category as of December 31, 2017 and 2016 consisted of the following:



			Actual Allocation
	Target		December 31,
	Allocation		2017		2016
Return-seeking securities	75.0	%	73.1	%	64.4	%
Liability-matching securities	25.0	%	26.7	%	35.4	%
Other investments	—	%	0.2	%	0.2	%



	December 31, 2017
	Fair Value		Level 1		Level 2		Level 3
Cash	$	3	$	3	$	—	$	—
Commingled equity funds^(a)	2,368		—		2,368		—
Corporate debt securities^(b)	1		—		1		—
Commingled bond funds^(a)	795		—		795		—
Collective trust funds^(c)	68		—		68		—
Total investment assets	3,235		$	3	$	3,232	$	—
Accrued investment income and other receivables^(d)	34
Investments measured at net asset value ^(e)	4
Fair value of plan assets	$	3,273

^(a)


^(b)	Corporate debt securities are valued based on observable prices from the new issue market, benchmark quotes, secondary trading and dealer quotes. An option adjusted spread model is incorporated to adjust spreads of issues that have early redemption features and final spreads are added to the U.S. Treasury curve.

^(c)


^(d)	Accrued investment income includes dividends and interest receivable.

^(e)



	December 31, 2016
	Fair Value			Level 1		Level 2		Level 3
Cash	$	2		$	2	$	—	$	—
Common stocks:								—
Domestic^(a)	1,065			1,065		—		—
International^(a)	391			391		—		—
Commingled equity funds^(b)	348			—		348		—
Other equity securities^(c)	3			3		—		—
Corporate debt securities^(d)	394			—		394		—
Commingled bond funds^(b)	273			—		273		—
U.S. Treasury debt securities^(a)	260			260		—		—
Collective trust funds^(e)	75			—		75		—
U.S. government agency asset-backed debt securities^(f)	53			—		53		—
Corporate asset-backed debt securities^(g)	2			—		2		—
Other fixed-income securities^(h)	89			—		89		—
Total investment assets	2,955			$	1,721	$	1,234	$	—
Accrued investment income and other receivables⁽ⁱ⁾	107
Accrued liabilities⁽ⁱ⁾	(120		)
Investments measured at net asset value ^(j)	4
Fair value of plan assets	$	2,946


^(a)	Common stocks, mutual funds and U.S. Treasury debt securities are valued at the closing price reported on the active market on which the individual securities are traded. No single industry comprised a significant portion of common stock held by the qualified pension plan as of December 31, 2016.

^(b)


^(c)	Other equity securities consist of preferred stocks, which are valued at the closing price reported on the active market on which the individual securities are traded.


^(d)	Corporate debt securities are valued based on observable prices from the new issue market, benchmark quotes, secondary trading and dealer quotes. An option adjusted spread model is incorporated to adjust spreads of issues that have early redemption features and final spreads are added to the U.S. Treasury curve.

^(e)


^(f)	U.S. government agency asset-backed debt securities consist of pass-through mortgage-backed securities issued by the Federal Home Loan Mortgage Corporation and the Federal National Mortgage Association valued using available trade information, dealer quotes, market indices and research reports, spreads, bids and offers.


^(g)	Corporate asset-backed debt securities primarily consist of pass-through mortgage-backed securities issued by U.S. and foreign corporations valued using available trade information, dealer quotes, market indices and research reports, spreads, bids and offers.

^(h)

⁽ⁱ⁾

^(j)

Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. These investments primarily consist of hedge funds valued utilizing net asset value provided by the administrator of the fund, which is based on the value of the underlying assets owned by the fund, less liabilities, and then divided by the number of units outstanding. Shares of the fund are not redeemable and the underlying assets are anticipated to be liquidated and distributed to investors in the near term. There are no material unfunded commitments with respect to these investments. The fair value amounts presented in this table are intended to permit the reconciliation of the fair value hierarchy to the total fair value of plan assets discussed throughout this footnote.

Unaudited Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2017

Unaudited Quarterly Financial Data [Abstract]

Schedule of Quarterly Financial Information

The following table presents quarterly data for the periods presented in the consolidated statement of operations:



	Year Ended December 31, 2017
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	10,164	$	10,357	$	10,458	$	10,602
Income from operations	$	941	$	1,052	$	909	$	1,204
Net income attributable to Charter shareholders	$	155	$	139	$	48	$	9,553

Earnings per common share attributable to Charter shareholders:
Basic	$	0.58	$	0.53	$	0.19	$	39.66
Diluted	$	0.57	$	0.52	$	0.19	$	34.56

Weighted average common share outstanding:
Basic	269,004,817		263,460,911		253,923,805		240,833,636
Diluted	273,199,509		267,309,261		258,341,851		278,257,245



	Year Ended December 31, 2016
	First Quarter			Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	2,530		$	6,161	$	10,037	$	10,275
Income from operations	$	302		$	170	$	911	$	1,073
Net income (loss) attributable to Charter shareholders	$	(188	)	$	3,067	$	189	$	454

Earnings (loss) per common share attributable to Charter shareholders:
Basic	$	(1.86	)	$	16.73	$	0.70	$	1.69
Diluted	$	(1.86	)	$	15.17	$	0.69	$	1.67

Weighted average common share outstanding:
Basic	101,552,093			183,362,776		271,263,259		268,584,368
Diluted	101,552,093			205,214,266		275,373,202		272,624,270

Consolidating Schedules (Tables)

12 Months Ended

Dec. 31, 2017

Consolidating Schedules [Abstract]

Schedule of Consolidating Schedules

Condensed consolidating financial statements as of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015 follow.



Charter Communications, Inc.
Condensed Consolidating Balance Sheet
As of December 31, 2017

	Non-Guarantor Subsidiaries				Guarantor Subsidiaries
	Charter		Intermediate Holding Companies		CCO Holdings		Charter Operating and Restricted Subsidiaries		Eliminations			Charter Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	—	$	291	$	—	$	330	$	—		$	621
Accounts receivable, net	—		24		—		1,611		—			1,635
Receivables from related party	22		613		55		—		(690		)	—
Prepaid expenses and other current assets	22		34		—		243		—			299
Total current assets	44		962		55		2,184		(690		)	2,555

INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	—		336		—		33,552		—			33,888
Customer relationships, net	—		—		—		11,951		—			11,951
Franchises	—		—		—		67,319		—			67,319
Goodwill	—		—		—		29,554		—			29,554
Total investment in cable properties, net	—		336		—		142,376		—			142,712

INVESTMENT IN SUBSIDIARIES	56,263		63,558		81,980		—		(201,801		)	—
LOANS RECEIVABLE – RELATED PARTY	233		655		511		—		(1,399		)	—
OTHER NONCURRENT ASSETS	—		223		—		1,133		—			1,356

Total assets	$	56,540	$	65,734	$	82,546	$	145,693	$	(203,890	)	$	146,623

LIABILITIES AND SHAREHOLDERS’/MEMBER’S EQUITY

CURRENT LIABILITIES:
Accounts payable and accrued liabilities	$	4	$	900	$	280	$	7,861	$	—		$	9,045
Payables to related party	—		—		—		690		(690		)	—
Current portion of long-term debt	—		—		—		2,045		—			2,045
Total current liabilities	4		900		280		10,596		(690		)	11,090

LONG-TERM DEBT	—		—		18,708		49,478		—			68,186
LOANS PAYABLE – RELATED PARTY	—		—		—		1,399		(1,399		)	—
DEFERRED INCOME TAXES	17,268		14		—		32		—			17,314
OTHER LONG-TERM LIABILITIES	184		134		—		2,184		—			2,502

SHAREHOLDERS’/MEMBER’S EQUITY
Controlling interest	39,084		56,263		63,558		81,980		(201,801		)	39,084
Noncontrolling interests	—		8,423		—		24		—			8,447
Total shareholders’/member’s equity	39,084		64,686		63,558		82,004		(201,801		)	47,531

Total liabilities and shareholders’/member’s equity	$	56,540	$	65,734	$	82,546	$	145,693	$	(203,890	)	$	146,623



Charter Communications, Inc.
Condensed Consolidating Balance Sheet
As of December 31, 2016

	Non-Guarantor Subsidiaries				Guarantor Subsidiaries
	Charter		Intermediate Holding Companies		CCO Holdings		Charter Operating and Restricted Subsidiaries		Eliminations			Charter Consolidated
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	57	$	154	$	—	$	1,324	$	—		$	1,535
Accounts receivable, net	34		11		—		1,387		—			1,432
Receivables from related party	170		451		62		—		(683		)	—
Prepaid expenses and other current assets	—		33		—		300		—			333
Total current assets	261		649		62		3,011		(683		)	3,300

INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	—		245		—		32,718		—			32,963
Customer relationships, net	—		—		—		14,608		—			14,608
Franchises	—		—		—		67,316		—			67,316
Goodwill	—		—		—		29,509		—			29,509
Total investment in cable properties, net	—		245		—		144,151		—			144,396

INVESTMENT IN SUBSIDIARIES	66,692		75,838		88,760		—		(231,290		)	—
LOANS RECEIVABLE – RELATED PARTY	—		640		494		—		(1,134		)	—
OTHER NONCURRENT ASSETS	—		214		—		1,157		—			1,371

Total assets	$	66,953	$	77,586	$	89,316	$	148,319	$	(233,107	)	$	149,067

LIABILITIES AND SHAREHOLDERS’/MEMBER’S EQUITY

CURRENT LIABILITIES:
Accounts payable and accrued liabilities	$	22	$	625	$	219	$	6,678	$	—		$	7,544
Payables to related party	—		—		—		683		(683		)	—
Current portion of long-term debt	—		—		—		2,028		—			2,028
Total current liabilities	22		625		219		9,389		(683		)	9,572

LONG-TERM DEBT	—		—		13,259		46,460		—			59,719
LOANS PAYABLE – RELATED PARTY	—		—		—		1,134		(1,134		)	—
DEFERRED INCOME TAXES	26,637		3		—		25		—			26,665
OTHER LONG-TERM LIABILITIES	155		64		—		2,526		—			2,745

SHAREHOLDERS’/MEMBER’S EQUITY
Controlling interest	40,139		66,692		75,838		88,760		(231,290		)	40,139
Noncontrolling interests	—		10,202		—		25		—			10,227
Total shareholders’/member’s equity	40,139		76,894		75,838		88,785		(231,290		)	50,366

Total liabilities and shareholders’/member’s equity	$	66,953	$	77,586	$	89,316	$	148,319	$	(233,107	)	$	149,067



Charter Communications, Inc.
Condensed Consolidating Statement of Operations
For the year ended December 31, 2017

	Non-Guarantor Subsidiaries						Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
REVENUES	$	90		$	1,186		$	—		$	41,578		$	(1,273	)	$	41,581

COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)	90			1,164			—			26,560			(1,273		)	26,541
Depreciation and amortization	—			9			—			10,579			—			10,588
Other operating (income) expenses, net	(101		)	3			—			444			—			346
	(11		)	1,176			—			37,583			(1,273		)	37,475
Income from operations	101			10			—			3,995			—			4,106

OTHER INCOME (EXPENSES):
Interest income (expense), net	5			20			(883		)	(2,232		)	—			(3,090		)
Loss on extinguishment of debt	—			—			(34		)	(6		)	—			(40		)
Gain on financial instruments, net	—			—			—			69			—			69
Other pension benefits	—			—			—			1			—			1
Other expense, net	—			(14		)	—			(4		)	—			(18		)
Equity in income of subsidiaries	680			882			1,799			—			(3,361		)	—
	685			888			882			(2,172		)	(3,361		)	(3,078		)

Income before income taxes	786			898			882			1,823			(3,361		)	1,028
INCOME TAX BENEFIT (EXPENSE)	9,109			1			—			(23		)	—			9,087
Consolidated net income	9,895			899			882			1,800			(3,361		)	10,115
Less: Net income – noncontrolling interests	—			(219		)	—			(1		)	—			(220		)
Net income	$	9,895		$	680		$	882		$	1,799		$	(3,361	)	$	9,895



Charter Communications, Inc.
Condensed Consolidating Statement of Operations
For the year ended December 31, 2016

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
REVENUES	$	251		$	1,004		$	—		$	—		$	29,003		$	(1,255	)	$	29,003

COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)	251			989			—			—			18,670			(1,255		)	18,655
Depreciation and amortization	—			5			—			—			6,902			—			6,907
Other operating expenses, net	262			1			—			—			722			—			985
	513			995			—			—			26,294			(1,255		)	26,547
Income (loss) from operations	(262		)	9			—			—			2,709			—			2,456

OTHER INCOME (EXPENSES):
Interest income (expense), net	—			14			(390		)	(727		)	(1,396		)	—			(2,499		)
Loss on extinguishment of debt	—			—			—			(110		)	(1		)	—			(111		)
Gain on financial instruments, net	—			—			—			—			89			—			89
Other pension benefits	—			—			—			—			899			—			899
Other expense, net	—			(11		)	—			—			(3		)	—			(14		)
Equity in income of subsidiaries	851			1,066			—			2,293			—			(4,210		)	—
	851			1,069			(390		)	1,456			(412		)	(4,210		)	(1,636		)

Income (loss) before income taxes	589			1,078			(390		)	1,456			2,297			(4,210		)	820
INCOME TAX BENEFIT (EXPENSE)	2,933			(5		)	—			—			(3		)	—			2,925
Consolidated net income (loss)	3,522			1,073			(390		)	1,456			2,294			(4,210		)	3,745
Less: Net income – noncontrolling interest	—			(222		)	—			—			(1		)	—			(223		)
Net income (loss)	$	3,522		$	851		$	(390	)	$	1,456		$	2,293		$	(4,210	)	$	3,522



Charter Communications, Inc.
Condensed Consolidating Statement of Operations
For the year ended December 31, 2015

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Unrestricted Subsidiary			Eliminations			Charter Consolidated
REVENUES	$	25		$	299		$	—		$	—		$	9,754		$	—		$	(324	)	$	9,754

COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)	25			299			—			—			6,426			—			(324		)	6,426
Depreciation and amortization	—			—			—			—			2,125			—			—			2,125
Other operating expenses, net	—			—			—			—			89			—			—			89
	25			299			—			—			8,640			—			(324		)	8,640
Income from operations	—			—			—			—			1,114			—			—			1,114

OTHER INCOME (EXPENSES):
Interest income (expense), net	—			8			(474		)	(642		)	(151		)	(47		)	—			(1,306		)
Loss on extinguishment of debt	—			—			(2		)	(123		)	—			(3		)	—			(128		)
Loss on financial instruments, net	—			—			—			—			(4		)	—			—			(4		)
Other expense, net	—			(7		)	—			—			—			—			—			(7		)
Equity in income (loss) of subsidiaries	(121		)	(168		)	—			1,073			(50		)	—			(734		)	—
	(121		)	(167		)	(476		)	308			(205		)	(50		)	(734		)	(1,445		)

Income (loss) before income taxes	(121		)	(167		)	(476		)	308			909			(50		)	(734		)	(331		)
INCOME TAX BENEFIT (EXPENSE)	(150		)	—			—			—			210			—			—			60
Consolidated net income (loss)	(271		)	(167		)	(476		)	308			1,119			(50		)	(734		)	(271		)
Less: Net (income) loss – noncontrolling interest	—			46			—			—			(46		)	—			—			—
Net income (loss)	$	(271	)	$	(121	)	$	(476	)	$	308		$	1,073		$	(50	)	$	(734	)	$	(271	)



Charter Communications, Inc.
Condensed Consolidating Statement of Comprehensive Income
For the year ended December 31, 2017

	Non-Guarantor Subsidiaries					Guarantor Subsidiaries
	Charter		Intermediate Holding Companies			CCO Holdings		Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
Consolidated net income	$	9,895	$	899		$	882	$	1,800		$	(3,361	)	$	10,115
Net impact of interest rate derivative instruments	5		5			5		5			(15		)	5
Foreign currency translation adjustment	1		1			1		1			(3		)	1
Consolidated comprehensive income	9,901		905			888		1,806			(3,379		)	10,121
Less: Comprehensive income attributable to noncontrolling interests	—		(219		)	—		(1		)	—			(220		)
Comprehensive income	$	9,901	$	686		$	888	$	1,805		$	(3,379	)	$	9,901



Charter Communications, Inc.
Condensed Consolidating Statement of Comprehensive Income (Loss)
For the year ended December 31, 2016

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
Consolidated net income (loss)	$	3,522		$	1,073		$	(390	)	$	1,456		$	2,294		$	(4,210	)	$	3,745
Net impact of interest rate derivative instruments	8			8			—			8			8			(24		)	8
Foreign currency translation adjustment	(2		)	(2		)	—			(2		)	(2		)	6			(2		)
Consolidated comprehensive income (loss)	3,528			1,079			(390		)	1,462			2,300			(4,228		)	3,751
Less: Comprehensive income attributable to noncontrolling interests	—			(222		)	—			—			(1		)	—			(223		)
Comprehensive income (loss)	$	3,528		$	857		$	(390	)	$	1,462		$	2,299		$	(4,228	)	$	3,528



Charter Communications, Inc.
Condensed Consolidating Statement of Comprehensive Income (Loss)
For the year ended December 31, 2015

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings		Charter Operating and Restricted Subsidiaries			Unrestricted Subsidiary			Eliminations			Charter Consolidated
Consolidated net income (loss)	$	(271	)	$	(167	)	$	(476	)	$	308	$	1,119		$	(50	)	$	(734	)	$	(271	)
Net impact of interest rate derivative instruments	9			9			—			9		9			—			(27		)	9
Consolidated comprehensive income (loss)	(262		)	(158		)	(476		)	317		1,128			(50		)	(761		)	(262		)
Less: Comprehensive (income) loss attributable to noncontrolling interests	—			46			—			—		(46		)	—			—			—
Comprehensive income (loss)	$	(262	)	$	(112	)	$	(476	)	$	317	$	1,082		$	(50	)	$	(761	)	$	(262	)



Charter Communications, Inc.
Condensed Consolidating Statement of Cash Flows
For the year ended December 31, 2017
+
	Non-Guarantor Subsidiaries						Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
NET CASH FLOWS FROM OPERATING ACTIVITIES	$	159		$	187		$	(814	)	$	12,422		$	—		$	11,954

CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	—			—			—			(8,681		)	—			(8,681		)
Change in accrued expenses related to capital expenditures	—			—			—			820			—			820
Purchases of cable systems, net	—			—			—			(9		)	—			(9		)
Real estate investments through variable interest entities	—			(105		)	—			—			—			(105		)
Contribution to subsidiaries	(115		)	—			(693		)	—			808			—
Distributions from subsidiaries	11,732			13,488			9,598			—			(34,818		)	—
Other, net	—			—			—			(123		)	—			(123		)
Net cash flows from investing activities	11,617			13,383			8,905			(7,993		)	(34,010		)	(8,098		)

CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	—			—			6,231			19,045			—			25,276
Repayments of long-term debt	—			—			(775		)	(15,732		)	—			(16,507		)
Borrowings (repayments) loans payable - related parties	(234		)	—			—			234			—			—
Payment for debt issuance costs	—			—			(59		)	(52		)	—			(111		)
Purchase of treasury stock	(11,715		)	—			—			—			—			(11,715		)
Proceeds from exercise of stock options	116			—			—			—			—			116
Purchase of noncontrolling interest	—			(1,665		)	—			—			—			(1,665		)
Distributions to noncontrolling interest	—			(151		)	—			(2		)	—			(153		)
Contributions from parent	—			115			—			693			(808		)	—
Distributions to parent	—			(11,732		)	(13,488		)	(9,598		)	34,818			—
Other, net	—			—			—			(11		)	—			(11		)
Net cash flows from financing activities	(11,833		)	(13,433		)	(8,091		)	(5,423		)	34,010			(4,770		)

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(57		)	137			—			(994		)	—			(914		)
CASH AND CASH EQUIVALENTS, beginning of period	57			154			—			1,324			—			1,535

CASH AND CASH EQUIVALENTS, end of period	$	—		$	291		$	—		$	330		$	—		$	621



Charter Communications, Inc.
Condensed Consolidating Statement of Cash Flows
For the year ended December 31, 2016

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Eliminations			Charter Consolidated
NET CASH FLOWS FROM OPERATING ACTIVITIES	$	(225	)	$	(36	)	$	(463	)	$	(711	)	$	9,476		$	—		$	8,041

CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	—			—			—			—			(5,325		)	—			(5,325		)
Change in accrued expenses related to capital expenditures	—			—			—			—			603			—			603
Purchases of cable systems, net	(26,781		)	(2,022		)	—			—			(7		)	—			(28,810		)
Contribution to subsidiaries	(1,013		)	(478		)	—			(437		)	—			1,928			—
Distributions from subsidiaries	24,552			26,899			—			5,096			—			(56,547		)	—
Change in restricted cash and cash equivalents	—			—			22,264			—			—			—			22,264
Other, net	—			—			—			—			(22		)	—			(22		)
Net cash flows from investing activities	(3,242		)	24,399			22,264			4,659			(4,751		)	(54,619		)	(11,290		)

CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	—			—			—			3,201			9,143			—			12,344
Repayments of long-term debt	—			—			—			(2,937		)	(7,584		)	—			(10,521		)
Borrowings (repayments) loans payable - related parties	—			(300		)	553			(71		)	(182		)	—			—
Payment for debt issuance costs	—			—			—			(73		)	(211		)	—			(284		)
Issuance of equity	5,000			—			—			—			—			—			5,000
Purchase of treasury stock	(1,562		)	—			—			—			—			—			(1,562		)
Proceeds from exercise of stock options	86			—			—			—			—			—			86
Settlement of restricted stock units	—			(59		)	—			—			—			—			(59		)
Purchase of noncontrolling interest	—			(218		)	—			—			—			—			(218		)
Distributions to noncontrolling interest	—			(96		)	—			—			—			—			(96		)
Proceeds from termination of interest rate derivatives	—			—			—			—			88			—			88
Contributions from parent	—			1,013			—			478			437			(1,928		)	—
Distributions to parent	—			(24,552		)	(22,353		)	(4,546		)	(5,096		)	56,547			—
Other, net	—			3			(1		)	—			(1		)	—			1
Net cash flows from financing activities	3,524			(24,209		)	(21,801		)	(3,948		)	(3,406		)	54,619			4,779

NET INCREASE IN CASH AND CASH EQUIVALENTS	57			154			—			—			1,319			—			1,530
CASH AND CASH EQUIVALENTS, beginning of period	—			—			—			—			5			—			5

CASH AND CASH EQUIVALENTS, end of period	$	57		$	154		$	—		$	—		$	1,324		$	—		$	1,535



Charter Communications, Inc.
Condensed Consolidating Statement of Cash Flows
For the year ended December 31, 2015

	Non-Guarantor Subsidiaries									Guarantor Subsidiaries
	Charter			Intermediate Holding Companies			Safari Escrow Entities			CCO Holdings			Charter Operating and Restricted Subsidiaries			Unrestricted Subsidiary			Eliminations			Charter Consolidated
NET CASH FLOWS FROM OPERATING ACTIVITIES:	$	(1	)	$	(5	)	$	(192	)	$	(663	)	$	3,275		$	(55	)	$	—		$	2,359

CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	—			—			—			—			(1,840		)	—			—			(1,840		)
Change in accrued expenses related to capital expenditures	—			—			—			—			28			—			—			28
Contribution to subsidiaries	(20		)	(90		)	—			(46		)	(24		)	—			180			—
Distributions from subsidiaries	26			376			—			715			—			—			(1,117		)	—
Change in restricted cash and cash equivalents	—			—			(18,667		)	—			—			3,514			—			(15,153		)
Other, net	—			(55		)	—			—			(12		)	—			—			(67		)
Net cash flows from investing activities	6			231			(18,667		)	669			(1,848		)	3,514			(937		)	(17,032		)

CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	—			—			21,790			2,700			1,555			—			—			26,045
Repayments of long-term debt	—			—			(3,500		)	(2,598		)	(1,745		)	(3,483		)	—			(11,326		)
Borrowings (repayments) loans payable - related parties	—			—			581			(18		)	(563		)	—			—			—
Payment for debt issuance costs	—			—			(12		)	(24		)	—			—			—			(36		)
Purchase of treasury stock	(38		)	—			—			—			—			—			—			(38		)
Proceeds from exercise of options and warrants	30			—			—			—			—			—			—			30
Contributions from parent	—			95			—			15			46			24			(180		)	—
Distributions to parent	—			(321		)	—			(81		)	(715		)	—			1,117			—
Net cash flows from financing activities	(8		)	(226		)	18,859			(6		)	(1,422		)	(3,459		)	937			14,675

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(3		)	—			—			—			5			—			—			2
CASH AND CASH EQUIVALENTS, beginning of period	3			—			—			—			—			—			—			3

CASH AND CASH EQUIVALENTS, end of period	$	—		$	—		$	—		$	—		$	5		$	—		$	—		$	5

Summary of Significant Accounting Policies (Details)	3 Months Ended								12 Months Ended
Summary of Significant Accounting Policies (Details)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Property, Plant and Equipment
Impairment of long-lived assets held-for-use									$ 0	$ 0	$ 0
Governmental imposed fees passed through to the customer									961,000,000	711,000,000	255,000,000
Revenue by Product Line
Revenues	$ 10,602,000,000	$ 10,458,000,000	$ 10,357,000,000	$ 10,164,000,000	$ 10,275,000,000	$ 10,037,000,000	$ 6,161,000,000	$ 2,530,000,000	41,581,000,000	29,003,000,000	9,754,000,000
Programming costs									$ 10,596,000,000	$ 7,034,000,000	$ 2,678,000,000
Weighted average assumptions used to estimate the fair value of stock options at the date of grant:
Risk-free interest rate (percentage)									1.80%	1.70%	1.50%
Expected volatility rate (percentage)									25.00%	25.40%	34.70%
Expected life (in years)									4 years 7 months	1 year 4 months	6 years 6 months
Number of reportable segments									1
Cable distribution systems [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									8 years
Cable distribution systems [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									20 years
Customer premise equipment and installations [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									3 years
Customer premise equipment and installations [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									8 years
Vehicles and equipment [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									6 years
Vehicles and equipment [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									9 years
Buildings and improvements [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									15 years
Buildings and improvements [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									40 years
Furniture, fixtures and equipment [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									7 years
Furniture, fixtures and equipment [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									10 years
Residential Video [Member]
Revenue by Product Line
Revenues									$ 16,641,000,000	$ 11,967,000,000	$ 4,587,000,000
Residential Internet [Member]
Revenue by Product Line
Revenues									14,105,000,000	9,272,000,000	3,003,000,000
Residential Voice [Member]
Revenue by Product Line
Revenues									2,542,000,000	2,005,000,000	539,000,000
Residential [Member]
Revenue by Product Line
Revenues									33,288,000,000	23,244,000,000	8,129,000,000
Commercial Small and Medium Business [Member]
Revenue by Product Line
Revenues									3,686,000,000	2,480,000,000	764,000,000
Commercial Enterprise [Member]
Revenue by Product Line
Revenues									2,210,000,000	1,429,000,000	363,000,000
Commercial [Member]
Revenue by Product Line
Revenues									5,896,000,000	3,909,000,000	1,127,000,000
Advertising Sales [Member]
Revenue by Product Line
Revenues									1,510,000,000	1,235,000,000	309,000,000
Other Services [Member]
Revenue by Product Line
Revenues									$ 887,000,000	$ 615,000,000	$ 189,000,000

Mergers and Acquisitions (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Final allocation of purchase price:
Goodwill		$ 29,554	$ 29,509
Pro forma financial information:
Pro forma revenues			40,023	$ 37,394
Pro forma net income attributable to Charter shareholders			$ 1,070	$ 159
Earnings per common share, basic			$ 3.97	$ 0.59
Earnings per common share, diluted			$ 3.91	$ 0.58
TWC Transaction [Member]
Mergers and Acquisitions:
TWC enterprise value including cash, equity and debt assumed		85,000
Final allocation of purchase price:
Assets acquired, cash and cash equivalents		1,058
Assets acquired, current assets		1,417
Assets acquired, property, plant and equipment		21,413
Assets acquired, customer relationships		13,460
Assets acquired, franchises		54,085
Goodwill		28,337
Assets acquired, other noncurrent assets		1,040
Liabilities assumed, accounts payable and accrued liabilities		(4,107)
Liabilities assumed, debt		(24,900)
Liabilities assumed, deferred income taxes		(28,120)
Liabilities assumed, other long-term liabilities		(3,162)
Noncontrolling interests acquired		(4)
Total assets acquired plus goodwill less liabilities assumed and noncontrolling interests acquired		60,517
Measurement period adjustment, working capital	$ 73
Measurement period adjustment, deferred income taxes	(28)
Measurement period adjustments impact on goodwill	$ 45
Bright House Transaction [Member]
Mergers and Acquisitions:
Total purchase price		12,200
Final allocation of purchase price:
Assets acquired, current assets		131
Assets acquired, property, plant and equipment		2,884
Assets acquired, customer relationships		2,150
Assets acquired, franchises		7,225
Goodwill		44
Assets acquired, other noncurrent assets		86
Liabilities assumed, accounts payable and accrued liabilities		(330)
Liabilities assumed, other long-term liabilities		(12)
Noncontrolling interests acquired		(22)
Total assets acquired plus goodwill less liabilities assumed and noncontrolling interests acquired		$ 12,156

Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for Doubtful Accounts [Roll Forward]
Balance, beginning of period	$ 124	$ 21	$ 22
Charged to expense	469	328	135
Uncollected balances written off, net of recoveries	(480)	(225)	(136)
Balance, end of period	$ 113	$ 124	$ 21

Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment
Property, plant and equipment, gross	$ 51,965	$ 44,066
Less: accumulated depreciation	(18,077)	(11,103)
Property, plant and equipment, net	33,888	32,963
Depreciation expense	7,800	5,000	$ 1,900
Cable distribution systems [Member]
Property, Plant and Equipment
Property, plant and equipment, gross	26,104	23,317
Customer premise equipment and installations [Member]
Property, Plant and Equipment
Property, plant and equipment, gross	15,909	12,867
Vehicles and equipment [Member]
Property, Plant and Equipment
Property, plant and equipment, gross	1,501	1,212
Buildings and improvements [Member]
Property, Plant and Equipment
Property, plant and equipment, gross	3,901	3,426
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment
Property, plant and equipment, gross	$ 4,550	$ 3,244

Franchises, Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Indefinite-lived Intangible Assets:
Goodwill	$ 29,554	$ 29,509
Indefinite-lived intangible assets and goodwill	97,032	96,988
Finite-Lived Intangible Assets:
Finite-lived intangible assets, gross	18,960	18,841
Finite-lived intangible assets, accumulated amortization	(6,479)	(3,746)
Finite-lived intangible assets, net	12,481	15,095
Amortization expense	2,700	1,900	$ 271
Expected amortization expense, 2018	2,478
Expected amortization expense, 2019	2,195
Expected amortization expense, 2020	1,903
Expected amortization expense, 2021	1,619
Expected amortization expense, 2022	1,342
Expected amortization expense, Thereafter	2,944
Franchises [Member]
Indefinite-lived Intangible Assets:
Indefinite-lived intangible assets	67,319	67,316
Trademarks [Member]
Indefinite-lived Intangible Assets:
Indefinite-lived intangible assets	159	159
Other Intangible Assets [Member]
Indefinite-lived Intangible Assets:
Indefinite-lived intangible assets	0	4
Customer Relationships [Member]
Finite-Lived Intangible Assets:
Finite-lived intangible assets, gross	18,229	18,226
Finite-lived intangible assets, accumulated amortization	(6,278)	(3,618)
Finite-lived intangible assets, net	$ 11,951	14,608
Customer Relationships [Member] \| Minimum [Member]
Finite-Lived Intangible Assets:
Customer relationships, useful life	8 years
Customer Relationships [Member] \| Maximum [Member]
Finite-Lived Intangible Assets:
Customer relationships, useful life	15 years
Other Intangible Assets [Member]
Finite-Lived Intangible Assets:
Finite-lived intangible assets, gross	$ 731	615
Finite-lived intangible assets, accumulated amortization	(201)	(128)
Finite-lived intangible assets, net	$ 530	$ 487

Investments (Details) - USD ($) $ in Millions	12 Months Ended
Investments (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Investments:
Equity-method investments	$ 482	$ 519
Other investments	15	11
Total investments	497	530
Unamortized basis difference for equity-method investments acquired	407	436
Net losses from equity-method investments	$ 18	$ 14	$ 7
AVN [Member]
Investments:
Equity-method investment, ownership percentage	35.00%
Sterling [Member]
Investments:
Equity-method investment, ownership percentage	26.80%
MLB Network [Member]
Investments:
Equity-method investment, ownership percentage	6.40%
iN Demand [Member]
Investments:
Equity-method investment, ownership percentage	39.50%
NCC [Member]
Investments:
Equity-method investment, ownership percentage	20.00%

Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable - trade	$ 740	$ 454
Deferred revenue	395	352
Accrued liabilities:
Programming costs	1,907	1,783
Compensation	1,109	1,111
Capital expenditures	1,935	1,107
Interest	1,054	958
Taxes and regulatory fees	556	538
Property and casualty	408	394
Other	941	847
Total	$ 9,045	$ 7,544

Long-Term Debt (Details) £ in Millions, $ in Millions	12 Months Ended
Long-Term Debt (Details) £ in Millions, $ in Millions	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2017 GBP (£)
Long-Term Debt:
Principal amount	$ 69,003	$ 60,036
Accreted value	70,231	61,747
Accreted value, current portion	(2,045)	(2,028)
Principal amount, noncurrent portion	67,003	58,036
Accreted value, noncurrent portion	68,186	59,719
Loss on extinguishment of debt	40	111	$ 128
Letters of credit outstanding secured under the Charter Operating credit facility	137
Letters of credit, amount	291
Long-term debt maturities, 2018	2,207
Long-term debt maturities, 2019	3,457
Long-term debt maturities, 2020	3,707
Long-term debt maturities, 2021	2,407
Long-term debt maturities, 2022	4,457
Long-term debt maturities, Thereafter	52,768
Credit facilities [Member]
Long-Term Debt:
Accreted value	$ 9,387	8,814
Sterling Senior Notes [Member]
Long-Term Debt:
Debt instrument redemption price (percentage)	100.00%
CCO Holdings [Member]
Long-Term Debt:
Principal amount	$ 6,250	3,200	2,700
Accreted value, current portion	0	0
Accreted value, noncurrent portion	18,708	13,259
Principal amount, repurchased	2,750	2,900	2,500
Loss on extinguishment of debt	$ 34	110	123
Debt instrument redemption price (percentage)	100.00%
Debt instrument, amount of principal that may be redeemed (percentage)	40.00%
Debt instrument redemption price in the event of change of control events (percentage)	101.00%
CCO Holdings [Member] \| Maximum [Member]
Long-Term Debt:
Leverage ratio	6.0			6.0
CCO Holdings [Member] \| Minimum [Member]
Long-Term Debt:
Leverage ratio	1.0			1.0
CCO Holdings [Member] \| 5.250% Senior Notes Due March 15, 2021 [Member]
Long-Term Debt:
Principal amount	$ 500	500
Accreted value	$ 497	496
Stated interest rate (percentage)	5.25%			5.25%
CCO Holdings [Member] \| 6.625% Senior Notes Due January 31, 2022 [Member]
Long-Term Debt:
Principal amount	$ 0	750
Accreted value	$ 0	741
Stated interest rate (percentage)	6.625%			6.625%
CCO Holdings [Member] \| 5.250% Senior Notes Due September 30, 2022 [Member]
Long-Term Debt:
Principal amount	$ 1,250	1,250
Accreted value	$ 1,235	1,232
Stated interest rate (percentage)	5.25%			5.25%
CCO Holdings [Member] \| 5.125% Senior Notes Due February 15, 2023 [Member]
Long-Term Debt:
Principal amount	$ 1,000	1,000
Accreted value	$ 993	992
Stated interest rate (percentage)	5.125%			5.125%
CCO Holdings [Member] \| 4.000% Senior Notes Due March 1, 2023 [Member]
Long-Term Debt:
Principal amount	$ 500	0
Accreted value	$ 495	0
Stated interest rate (percentage)	4.00%			4.00%
CCO Holdings [Member] \| 5.125% Senior Notes Due May 1, 2023 [Member]
Long-Term Debt:
Principal amount	$ 1,150	1,150
Accreted value	$ 1,143	1,141
Stated interest rate (percentage)	5.125%			5.125%
CCO Holdings [Member] \| 5.750% Senior Notes Due September 1, 2023 [Member]
Long-Term Debt:
Principal amount	$ 500	500
Accreted value	$ 496	496
Stated interest rate (percentage)	5.75%			5.75%
CCO Holdings [Member] \| 5.750% Senior Notes Due January 15, 2024 [Member]
Long-Term Debt:
Principal amount	$ 1,000	1,000
Accreted value	$ 992	991
Stated interest rate (percentage)	5.75%			5.75%
CCO Holdings [Member] \| 5.875% Senior Notes Due April 1, 2024 [Member]
Long-Term Debt:
Principal amount	$ 1,700	1,700
Accreted value	$ 1,687	1,685
Stated interest rate (percentage)	5.875%			5.875%
CCO Holdings [Member] \| 5.375% Senior Notes Due May 1, 2025 [Member]
Long-Term Debt:
Principal amount	$ 750	750
Accreted value	$ 745	744
Stated interest rate (percentage)	5.375%			5.375%
CCO Holdings [Member] \| 5.750% Senior Notes Due February 15, 2026 [Member]
Long-Term Debt:
Principal amount	$ 2,500	2,500
Accreted value	$ 2,464	2,460
Stated interest rate (percentage)	5.75%			5.75%
CCO Holdings [Member] \| 5.500% Senior Notes Due May 1, 2026 [Member]
Long-Term Debt:
Principal amount	$ 1,500	1,500
Accreted value	$ 1,489	1,487
Stated interest rate (percentage)	5.50%			5.50%
CCO Holdings [Member] \| 5.875% Senior Notes Due May 1, 2027 [Member]
Long-Term Debt:
Principal amount	$ 800	800
Accreted value	$ 794	794
Stated interest rate (percentage)	5.875%			5.875%
CCO Holdings [Member] \| 5.125% Senior Notes Due May 1, 2027 [Member]
Long-Term Debt:
Principal amount	$ 3,250	0
Accreted value	$ 3,216	0
Stated interest rate (percentage)	5.125%			5.125%
CCO Holdings [Member] \| 5.000% Senior Notes Due February 1, 2028 [Member]
Long-Term Debt:
Principal amount	$ 2,500	0
Accreted value	$ 2,462	0
Stated interest rate (percentage)	5.00%			5.00%
Charter Operating [Member]
Long-Term Debt:
Principal amount	$ 4,750
Loss on extinguishment of debt	6	1
Charter Operating [Member] \| 3.579% Senior Notes Due July 23, 2020 [Member]
Long-Term Debt:
Principal amount	2,000	2,000
Accreted value	$ 1,988	1,983
Stated interest rate (percentage)	3.579%			3.579%
Charter Operating [Member] \| 4.464% Senior Notes Due July 23, 2022 [Member]
Long-Term Debt:
Principal amount	$ 3,000	3,000
Accreted value	$ 2,977	2,973
Stated interest rate (percentage)	4.464%			4.464%
Charter Operating [Member] \| 4.908% Senior Notes Due July 23, 2025 [Member]
Long-Term Debt:
Principal amount	$ 4,500	4,500
Accreted value	$ 4,462	4,458
Stated interest rate (percentage)	4.908%			4.908%
Charter Operating [Member] \| 3.750% Senior Notes Due February 15, 2028 [Member]
Long-Term Debt:
Principal amount	$ 1,000	0
Accreted value	$ 985	0
Stated interest rate (percentage)	3.75%			3.75%
Charter Operating [Member] \| 4.200% Senior Notes Due March 15, 2028 [Member]
Long-Term Debt:
Principal amount	$ 1,250	0
Accreted value	$ 1,238	0
Stated interest rate (percentage)	4.20%			4.20%
Charter Operating [Member] \| 6.384% Senior Notes Due October 23, 2035 [Member]
Long-Term Debt:
Principal amount	$ 2,000	2,000
Accreted value	$ 1,981	1,980
Stated interest rate (percentage)	6.384%			6.384%
Charter Operating [Member] \| 6.484% Senior Notes Due October 23, 2045 [Member]
Long-Term Debt:
Principal amount	$ 3,500	3,500
Accreted value	$ 3,466	3,466
Stated interest rate (percentage)	6.484%			6.484%
Charter Operating [Member] \| 5.375% Senior Notes Due May 1, 2047 [Member]
Long-Term Debt:
Principal amount	$ 2,500	0
Accreted value	$ 2,506	0
Stated interest rate (percentage)	5.375%			5.375%
Charter Operating [Member] \| 6.834% Senior Notes Due October 23, 2055 [Member]
Long-Term Debt:
Principal amount	$ 500	500
Accreted value	$ 495	495
Stated interest rate (percentage)	6.834%			6.834%
Charter Operating [Member] \| Credit facilities [Member]
Long-Term Debt:
Principal amount	$ 9,479	8,916
Accreted value	$ 9,387	$ 8,814
Variable interest rate at end of period (percentage)	1.56%	0.77%		1.56%
Charter Operating [Member] \| Revolving Credit Facility [Member]
Long-Term Debt:
Principal amount	$ 254
Availability under credit facilities	$ 3,600
Basis spread on variable interest rate (percentage)	1.50%
Maximum borrowing capacity	$ 4,000
Commitment fee (percentage)	0.30%
Letters of credit outstanding secured under the Charter Operating credit facility	$ 137
Letters of credit, amount	291
Charter Operating [Member] \| Term Loan A Due 2021 [Member]
Long-Term Debt:
Principal amount	2,900
Debt instrument, required periodic principal payments	$ 144
Basis spread on variable interest rate (percentage)	1.50%
Charter Operating [Member] \| Term Loan B Due 2025 [Member]
Long-Term Debt:
Principal amount	$ 6,400
Debt instrument, required periodic principal payments	$ 64
Basis spread on variable interest rate (percentage)	2.00%
Time Warner Cable LLC [Member] \| 5.850% Senior Notes Due May 1, 2017 [Member]
Long-Term Debt:
Principal amount	$ 0	$ 2,000
Accreted value	0	2,028
Principal amount, current portion	0	(2,000)
Accreted value, current portion	$ 0	(2,028)
Stated interest rate (percentage)	5.85%			5.85%
Time Warner Cable LLC [Member] \| 6.750% Senior Notes Due July 1, 2018 [Member]
Long-Term Debt:
Principal amount	$ 2,000	2,000
Accreted value	2,045	2,135
Principal amount, current portion	(2,000)	0
Accreted value, current portion	$ (2,045)	0
Stated interest rate (percentage)	6.75%			6.75%
Time Warner Cable LLC [Member] \| 8.750% Senior Notes Due February 14, 2019 [Member]
Long-Term Debt:
Principal amount	$ 1,250	1,250
Accreted value	$ 1,337	1,412
Stated interest rate (percentage)	8.75%			8.75%
Time Warner Cable LLC [Member] \| 8.250% Senior Notes Due April 1, 2019 [Member]
Long-Term Debt:
Principal amount	$ 2,000	2,000
Accreted value	$ 2,148	2,264
Stated interest rate (percentage)	8.25%			8.25%
Time Warner Cable LLC [Member] \| 5.000% Senior Notes Due February 1, 2020 [Member]
Long-Term Debt:
Principal amount	$ 1,500	1,500
Accreted value	$ 1,579	1,615
Stated interest rate (percentage)	5.00%			5.00%
Time Warner Cable LLC [Member] \| 4.125% Senior Notes Due February 15, 2021 [Member]
Long-Term Debt:
Principal amount	$ 700	700
Accreted value	$ 730	739
Stated interest rate (percentage)	4.125%			4.125%
Time Warner Cable LLC [Member] \| 4.000% Senior Notes Due September 1, 2021 [Member]
Long-Term Debt:
Principal amount	$ 1,000	1,000
Accreted value	$ 1,045	1,056
Stated interest rate (percentage)	4.00%			4.00%
Time Warner Cable LLC [Member] \| 5.750% Sterling Senior Notes Due June 2, 2031 [Member]
Long-Term Debt:
Principal amount	$ 845	770		£ 625
Accreted value	$ 912	834
Stated interest rate (percentage)	5.75%			5.75%
Time Warner Cable LLC [Member] \| 6.550% Senior Debentures Due May 1, 2037 [Member]
Long-Term Debt:
Principal amount	$ 1,500	1,500
Accreted value	$ 1,686	1,691
Stated interest rate (percentage)	6.55%			6.55%
Time Warner Cable LLC [Member] \| 7.300% Senior Debentures Due July 1, 2038 [Member]
Long-Term Debt:
Principal amount	$ 1,500	1,500
Accreted value	$ 1,788	1,795
Stated interest rate (percentage)	7.30%			7.30%
Time Warner Cable LLC [Member] \| 6.750% Senior Debentures Due June 15, 2039 [Member]
Long-Term Debt:
Principal amount	$ 1,500	1,500
Accreted value	$ 1,724	1,730
Stated interest rate (percentage)	6.75%			6.75%
Time Warner Cable LLC [Member] \| 5.875% Senior Debentures Due November 15, 2040 [Member]
Long-Term Debt:
Principal amount	$ 1,200	1,200
Accreted value	$ 1,258	1,259
Stated interest rate (percentage)	5.875%			5.875%
Time Warner Cable LLC [Member] \| 5.500% Senior Debentures Due September 1, 2041 [Member]
Long-Term Debt:
Principal amount	$ 1,250	1,250
Accreted value	$ 1,258	1,258
Stated interest rate (percentage)	5.50%			5.50%
Time Warner Cable LLC [Member] \| 5.250% Sterling Senior Notes Due July 15, 2042 [Member]
Long-Term Debt:
Principal amount	$ 879	800		£ 650
Accreted value	$ 847	771
Stated interest rate (percentage)	5.25%			5.25%
Time Warner Cable LLC [Member] \| 4.500% Senior Debentures Due September 15, 2042 [Member]
Long-Term Debt:
Principal amount	$ 1,250	1,250
Accreted value	$ 1,137	1,135
Stated interest rate (percentage)	4.50%			4.50%
Time Warner Cable Enterprises LLC [Member] \| 8.375% Senior Debentures Due March 15, 2023 [Member]
Long-Term Debt:
Principal amount	$ 1,000	1,000
Accreted value	$ 1,232	1,273
Stated interest rate (percentage)	8.375%			8.375%
Time Warner Cable Enterprises LLC [Member] \| 8.375% Senior Debentures Due July 15, 2033 [Member]
Long-Term Debt:
Principal amount	$ 1,000	1,000
Accreted value	$ 1,312	$ 1,324
Stated interest rate (percentage)	8.375%			8.375%
CCO Safari [Member]
Long-Term Debt:
Loss on extinguishment of debt			$ 5

Common Stock (Details) - USD ($) $ in Millions	12 Months Ended
Common Stock (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Roll Forward of Common Shares:
Exercise of stock options (in shares)	1,044,000	1,015,000	524,000
Purchase of treasury stock (in shares)	(33,868,356)	(6,029,225)	(222,237)
Purchases and retirements of treasury stock	$ 11,715	$ 1,562	$ 38
Remaining value of Class A common stock shares authorized to be repurchased	$ 1,100
Treasury Stock Acquired - Share buybacks
Roll Forward of Common Shares:
Purchase of treasury stock (in shares)	(33,375,878)	(5,070,656)	0
Purchases and retirements of treasury stock	$ 11,570	$ 1,346	$ 0
Treasury Stock Acquired - Income tax withholding
Roll Forward of Common Shares:
Purchase of treasury stock (in shares)	(447,455)	(908,066)	(177,696)
Purchases and retirements of treasury stock	$ 145	$ 216	$ 38
Treasury Stock Acquired - Exercise cost
Roll Forward of Common Shares:
Purchase of treasury stock (in shares)	(45,023)	(50,503)	(44,541)
Class A Common Stock [Member]
Common Stock:
Votes per share (in votes)	1
Roll Forward of Common Shares:
Shares outstanding, beginning of period (in shares)	268,897,792	112,438,828	111,999,687
Reorganization of common stock (in shares)		(10,771,404)
Exchange of Charter Holdings units held by A/N (in units)	1,263,497	1,852,832
Exercise of stock options (in shares)	1,044,526	1,014,664	579,173
Restricted stock issuances, net of cancellations (in shares)	9,517	9,811	6,920
Restricted stock unit vesting (in shares)	1,159,083	1,738,792	98,831
Purchase of treasury stock (in shares)	(33,868,356)	(6,029,225)	(245,783)
Shares outstanding, end of period (in shares)	238,506,059	268,897,792	112,438,828
Class A Common Stock [Member] \| TWC Transaction [Member]
Roll Forward of Common Shares:
Issuance of shares in TWC Transaction (in shares)		143,012,155
Class A Common Stock [Member] \| Liberty Broadband [Member]
Roll Forward of Common Shares:
Issuance of shares (in shares)		25,631,339
Class A Common Stock [Member] \| A/N [Member]
Roll Forward of Common Shares:
Issuance of shares (in shares)		0
Class B Common Stock [Member]
Roll Forward of Common Shares:
Shares outstanding, beginning of period (in shares)	1	0	0
Reorganization of common stock (in shares)		0
Exchange of Charter Holdings units held by A/N (in units)	0	0
Exercise of stock options (in shares)	0	0	0
Restricted stock issuances, net of cancellations (in shares)	0	0	0
Restricted stock unit vesting (in shares)	0	0	0
Purchase of treasury stock (in shares)	0	0	0
Shares outstanding, end of period (in shares)	1	1	0
Class B Common Stock [Member] \| TWC Transaction [Member]
Roll Forward of Common Shares:
Issuance of shares in TWC Transaction (in shares)		0
Class B Common Stock [Member] \| Liberty Broadband [Member]
Roll Forward of Common Shares:
Issuance of shares (in shares)		0
Class B Common Stock [Member] \| A/N [Member]
Roll Forward of Common Shares:
Issuance of shares (in shares)		1

Noncontrolling Interests (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Noncontrolling Interests:
Noncontrolling interest ownership threshold (percentage)	100.00%
Net Income (Loss) Attributable to Noncontrolling Interest	$ 220	$ 223	$ 0
Distributions to noncontrolling interest	153	96
Value of Charter Holdings units purchased from A/N	1,482	206
Exchange of Charter Holdings common units held by A/N, net of tax and TRA effects	33	55
Noncontrolling Interest [Member]
Noncontrolling Interests:
Distributions to noncontrolling interest	153	96
Value of Charter Holdings units purchased from A/N	1,187	187
Exchange of Charter Holdings common units held by A/N, net of tax and TRA effects	298	460
Pretax impact of change in subsidiary ownership structure	362	589
Additional Paid-in Capital [Member]
Noncontrolling Interests:
Distributions to noncontrolling interest	0	0
Value of Charter Holdings units purchased from A/N	295	19
Exchange of Charter Holdings common units held by A/N, net of tax and TRA effects	(265)	(405)
Pretax impact of change in subsidiary ownership structure	362	589
Tax effect of change in subsidiary ownership structure	$ 139	$ 225
Common Noncontrolling Interest [Member]
Noncontrolling Interests:
Shares held by noncontrolling shareholders (shares)	22,300,000
Ownership percentage held by noncontrolling interest (percentage)	9.00%	10.00%
Net Income (Loss) Attributable to Noncontrolling Interest	$ 69	$ 129
Distributions to noncontrolling interest	$ 3	$ 3
Number of Charter Holdings units purchased from A/N (in units)	4,800,000	800,000
Price per share at which Charter Holdings units were purchased from A/N (dollars per share)	$ 347.03	$ 289.83
Purchase price of Charter Holdings units purchased from A/N	$ 1,700	$ 218
Number of Charter Holdings common units held by A/N exchanged for shares of Charter Class A common stock (in units)	1,300,000	1,900,000
Purchase price of Charter Holdings common units held by A/N exchanged for shares of Charter Class A common stock	$ 400	$ 537
Common Noncontrolling Interest [Member] \| Additional Paid-in Capital [Member]
Noncontrolling Interests:
Pretax impact of noncontrolling interest purchased	478	31
Tax effect of noncontrolling interest purchased	183	12
Common Noncontrolling Interest [Member] \| Bright House Transaction [Member]
Noncontrolling Interests:
Fair value of shares/units issued to acquire business	$ 7,000
Preferred Noncontrolling Interest [Member]
Noncontrolling Interests:
Shares held by noncontrolling shareholders (shares)	25,000,000
Distributions to noncontrolling interest	$ 150	$ 93
Convertible units, face amount	$ 2,500
Convertible units, dividend rate (percentage)	6.00%
Number of units to be received upon conversion to Charter Holdings common units (in units)	0.37334
Number of shares to be received upon conversion to Charter Class A common stock (in shares)	0.37334
Convertible units, conversion price (dollars per unit)	$ 267.85
Convertible units, conversion price threshold (percentage)	130.00%
Preferred Noncontrolling Interest [Member] \| Bright House Transaction [Member]
Noncontrolling Interests:
Fair value of shares/units issued to acquire business	$ 3,200

Accounting for Derivative Instruments and Hedging Activities (Details) £ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2017 GBP (£)
Derivatives:
Proceeds from termination of interest rate derivatives	$ 0	$ 88	$ 0
Gain (loss) on financial instruments, net:
Change in fair value of interest rate derivative instruments	5	8	5
Change in fair value of cross-currency derivative instruments	226	(179)	0
Remeasurement of Sterling Notes to U.S. dollars	(157)	279	0
Loss on termination of interest rate derivative instruments	0	(11)	0
Loss reclassified from accumulated other comprehensive loss due to discontinuance of hedge accounting	(5)	(8)	(9)
Gain (loss) on financial instruments, net	$ 69	89	$ (4)
Cross Currency Derivatives [Member]
Derivatives:
Notional amount \| £				£ 1,275
Collateral holiday agreement, position covered (percentage)	80.00%			80.00%
Collateral holiday agreement, term	3 years
Cross Currency Derivatives [Member] \| Other Long-Term Liabilities [Member]
Derivatives:
Fair Value of cross currency derivative instruments	$ 25	$ 251

Fair Value Measurements (Details) - USD ($) $ in Millions	12 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value Measurements:
Maximum amount invested in financial instrument per investment policy	$ 300	$ 250
Debt, carrying value	70,231	61,747
Asset impairment charges	0	0	$ 0
Senior Notes and Debentures [Member]
Fair Value Measurements:
Debt, carrying value	60,844	52,933
Debt, fair value	63,443	55,203
Credit facilities [Member]
Fair Value Measurements:
Debt, carrying value	9,387	8,814
Debt, fair value	9,440	8,943
Level 1 [Member]
Fair Value Measurements:
Cash and cash equivalents, fair value	291	1,205
Level 2 [Member]
Fair Value Measurements:
Cash and cash equivalents, fair value	0	0
Cross Currency Derivatives [Member] \| Level 1 [Member]
Fair Value Measurements:
Liability position derivative instruments, fair value	0	0
Cross Currency Derivatives [Member] \| Level 2 [Member]
Fair Value Measurements:
Liability position derivative instruments, fair value	$ 25	$ 251

Operating Costs and Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Costs and Expenses [Abstract]
Programming	$ 10,596	$ 7,034	$ 2,678
Regulatory, connectivity and produced content	2,064	1,467	435
Cost to service customers	7,780	5,654	1,880
Marketing	2,420	1,707	629
Transition costs	124	156	72
Other	3,557	2,637	732
Operating costs and expenses	$ 26,541	$ 18,655	$ 6,426

Other Operating Expenses, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other Operating Expenses, Net [Abstract]
Merger and restructuring costs	$ 351	$ 970	$ 70
Special charges, net	(21)	17	15
(Gain) loss on sale of assets, net	16	(2)	4
Other operating expenses, net	346	985	89
Merger and Restructuring Costs [Roll Forward]
Accrued merger and restructuring costs, beginning of period	276	33
Liability assumed in the Transactions		92
Costs incurred	302	722
Cash paid	(380)	(571)
Accrued merger and restructuring costs, end of period	198	276	33
Stock compensation expense recognized in merger costs	49	248
Benefit arising from remeasurement of a liability as a result of tax reform	101
Obligation charge arising from a withdrawal liability from a multi-employer pension plan	83
Employee Retention Costs [Member]
Merger and Restructuring Costs [Roll Forward]
Accrued merger and restructuring costs, beginning of period	7	0
Liability assumed in the Transactions		80
Costs incurred	4	26
Cash paid	(10)	(99)
Accrued merger and restructuring costs, end of period	1	7	0
Employee Termination Costs [Member]
Merger and Restructuring Costs [Roll Forward]
Accrued merger and restructuring costs, beginning of period	244	0
Liability assumed in the Transactions		9
Costs incurred	226	337
Cash paid	(298)	(102)
Accrued merger and restructuring costs, end of period	172	244	0
Transaction and Advisory Costs [Member]
Merger and Restructuring Costs [Roll Forward]
Accrued merger and restructuring costs, beginning of period	25	33
Liability assumed in the Transactions		3
Costs incurred	4	318
Cash paid	(12)	(329)
Accrued merger and restructuring costs, end of period	17	25	33
Other Costs [Member]
Merger and Restructuring Costs [Roll Forward]
Accrued merger and restructuring costs, beginning of period	0	0
Liability assumed in the Transactions		0
Costs incurred	68	41
Cash paid	(60)	(41)
Accrued merger and restructuring costs, end of period	$ 8	$ 0	$ 0

Stock Compensation Plans (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Stock Compensation Plans:
Stock compensation expense	$ 261	$ 244	$ 78
Stock compensation expense recognized in merger costs	$ 49	$ 248
Roll Forward of Stock Options Outstanding:
Stock options outstanding, beginning of period (in shares)	9,592,000	3,923,000	3,336,000
Stock options granted (in shares)	1,175,000	5,999,000	1,176,000
TWC stock options converted (in shares)	0	839,000	0
Stock options exercised (in shares)	(1,044,000)	(1,015,000)	(524,000)
Stock options canceled (in shares)	(74,000)	(154,000)	(65,000)
Stock options outstanding, end of period (in shares)	9,649,000	9,592,000	3,923,000
Stock options outstanding weighted average exercise price, beginning of period	$ 181.39	$ 122.03	$ 95.42
Stock options granted weighted average exercise price	302.87	218.91	177.14
TWC stock options converted weighted average exercise price	0.00	86.46	0.00
Stock options exercised weighted average exercise price	124.32	96.33	72.27
Stock options canceled weighted average exercise price	251.63	173.98	155.23
Stock options outstanding weighted average exercise price, end of period	$ 201.83	$ 181.39	$ 122.03
Stock options exercised aggregate intrinsic value	$ 219	$ 146	$ 68
Stock options outstanding aggregate intrinsic value	$ 1,295
Stock options outstanding weighted average remaining contractual life (in years)	8 years	8 years	7 years
Stock options exercisable, end of period (in shares)	1,734,000	1,665,000	1,224,000
Stock options exercisable weighted average exercise price, end of period	$ 90.56	$ 71.71	$ 61.88
Stock options exercisable aggregate intrinsic value, end of period	$ 425
Stock options expected to vest, end of period (in shares)	7,915,000
Stock options expected to vest weighted average exercise price, end of period	$ 226.20
Stock options expected to vest aggregate intrinsic value, end of period	$ 869
Stock options granted weighted average grant date fair value	$ 73.67	$ 47.42	$ 66.20
Restricted Stock [Member]
Stock Compensation Plans:
Unrecognized compensation expense	$ 1
Remaining period over which unrecognized compensation expense is expected to be recognized (in years)	4 months
Roll Forward of Restricted Stock and Restricted Stock Units Outstanding:
Awards other than stock options outstanding, beginning of period (in shares)	10,000	197,000	390,000
Awards other than stock options, granted (in shares)	10,000	10,000	6,000
Awards other than stock options, vested (in shares)	(10,000)	(197,000)	(199,000)
Awards other than stock options, canceled (in shares)	0	0	0
Awards other than stock options outstanding, end of period (in shares)	10,000	10,000	197,000
Awards other than stock options outstanding weighted average grant price, beginning of period	$ 231.81	$ 65.79	$ 63.30
Awards other than stock options granted weighted average grant price	343.10	231.83	201.34
Awards other than stock options vested weighted average grant price	231.81	65.79	65.16
Awards other than stock options canceled weighted average grant price	0.00	0.00	0.00
Awards other than stock options outstanding weighted average grant price, end of period	$ 343.10	$ 231.81	$ 65.79
Restricted Stock [Member] \| Minimum [Member]
Stock Compensation Plans:
Award vesting period (in years)	1 year
Restricted Stock Units (RSUs) [Member]
Stock Compensation Plans:
Unrecognized compensation expense	$ 173
Remaining period over which unrecognized compensation expense is expected to be recognized (in years)	2 years
Roll Forward of Restricted Stock and Restricted Stock Units Outstanding:
Awards other than stock options outstanding, beginning of period (in shares)	3,313,000	337,000	294,000
Awards other than stock options, granted (in shares)	285,000	895,000	148,000
TWC awards other than stock options converted (in shares)	0	4,162,000	0
Awards other than stock options, vested (in shares)	(1,159,000)	(1,739,000)	(90,000)
Awards other than stock options, canceled (in shares)	(48,000)	(342,000)	(15,000)
Awards other than stock options outstanding, end of period (in shares)	2,391,000	3,313,000	337,000
Awards other than stock options outstanding weighted average grant price, beginning of period	$ 192.41	$ 150.96	$ 115.01
Awards other than stock options granted weighted average grant price	302.76	213.09	179.17
TWC awards other than stock options converted weighted average grant price	0.00	224.90	0.00
Awards other than stock options vested weighted average grant price	216.21	219.60	78.65
Awards other than stock options canceled weighted average grant price	234.99	219.91	155.43
Awards other than stock options outstanding weighted average grant price, end of period	$ 192.96	$ 192.41	$ 150.96
Restricted Stock Units (RSUs) [Member] \| Maximum [Member]
Stock Compensation Plans:
Award vesting period (in years)	3 years
Restricted Stock Units (RSUs) [Member] \| Legacy TWC Awards Converted May 2016 [Member]
Stock Compensation Plans:
Award vesting (percentage)	50.00%
Stock Options [Member]
Stock Compensation Plans:
Award expiration period (in years)	10 years
Unrecognized compensation expense	$ 211
Remaining period over which unrecognized compensation expense is expected to be recognized (in years)	3 years
Stock Options [Member] \| Maximum [Member]
Stock Compensation Plans:
Award vesting period (in years)	3 years
Class A Common Stock [Member]
Stock Compensation Plans:
Shares authorized under the 2009 Stock Incentive Plan (in shares)	21,000,000
Roll Forward of Stock Options Outstanding:
Stock options exercised (in shares)	(1,044,526)	(1,014,664)	(579,173)
Roll Forward of Restricted Stock and Restricted Stock Units Outstanding:
Awards other than stock options, vested (in shares)	(1,159,083)	(1,738,792)	(98,831)

Income Taxes (Details) - USD ($) shares in Millions	12 Months Ended
Income Taxes (Details) - USD ($) shares in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Components of Income Tax Benefit (Expense) and Effective Tax Rate Reconciliation:
Current federal income tax expense	$ (4,000,000)	$ (4,000,000)	$ (1,000,000)
Current state income tax expense	(25,000,000)	(29,000,000)	(4,000,000)
Current income tax expense	(29,000,000)	(33,000,000)	(5,000,000)
Deferred federal income tax benefit	9,082,000,000	2,549,000,000	53,000,000
Deferred state income tax benefit	34,000,000	409,000,000	12,000,000
Deferred income tax benefit	9,116,000,000	2,958,000,000	65,000,000
Income tax benefit	9,087,000,000	2,925,000,000	60,000,000
Income tax benefit realized as a result of Tax Reform	9,300,000,000
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 88,000,000	899,000,000	22,300,000,000
Increase in tax basis of amortizable and depreciable assets			638,000,000
Federal income tax rate (percentage)	35.00%
Federal income tax rate after enactment of Tax Reform (percentage)	21.00%
Percentage of bonus depreciation of certain assets as a result of Tax Reform	100.00%
Rate reconciliation, statutory federal income taxes	$ (360,000,000)	(288,000,000)	116,000,000
Rate reconciliation, statutory state income tax expense, net	(34,000,000)	(36,000,000)	(4,000,000)
Rate reconciliation, nondeductible expenses	(21,000,000)	(62,000,000)	(12,000,000)
Rate reconciliation, net income attributable to noncontrolling interest	84,000,000	78,000,000	0
Rate reconciliation, change in valuation allowance	14,000,000	3,171,000,000	(250,000,000)
Rate reconciliation, excess stock compensation	88,000,000	0	0
Rate reconciliation, organizational restructuring	0	0	187,000,000
Rate reconciliation, federal tax credits	21,000,000	16,000,000	18,000,000
Rate reconciliation, income rate changes	9,293,000,000	65,000,000	4,000,000
Rate reconciliation, other changes	2,000,000	(19,000,000)	1,000,000
Components of Deferred Tax Assets (Liabilities):
Deferred tax assets, loss carryforwards	2,657,000,000	4,127,000,000
Deferred tax assets, accrued and other	287,000,000	243,000,000
Total gross deferred tax assets	2,944,000,000	4,370,000,000
Valuation Allowance:
Deferred tax assets, valuation allowance	(137,000,000)	(200,000,000)
Deferred tax assets	2,807,000,000	4,170,000,000
Deferred tax liabilities, investment in partnership	(20,107,000,000)	(30,832,000,000)
Deferred tax liabilities, accrued and other	(14,000,000)	(3,000,000)
Deferred tax liabilities	(20,121,000,000)	(30,835,000,000)
Net deferred tax liabilities	(17,314,000,000)	(26,665,000,000)
Net deferred tax liabilities related to certain indirect subsidiaries that file separate income tax returns	$ 32,000,000
Net Operating Loss Carryforwards:
Liberty Media Corporation’s beneficial interest in Legacy Charter (percentage)	27.00%
Net operating loss carryforwards for which the use is limited through 2018	$ 8,700,000,000
Net operating loss carryforwards for which the use is limited through 2019	654,000,000
Net operating loss carryforwards for which the use is limited through 2020	226,000,000
Net operating loss carryforwards for which the use is limited through 2021	226,000,000
Net operating loss carryforwards for which the use is limited through 2022	226,000,000
Net operating loss carryforwards for which the use is limited through 2023	226,000,000
Net operating loss carryforward for which the use is limited through 2024	226,000,000
Net operating loss carryforward subject to a valuation allowance	$ 415,000,000
Tax Receivable Agreement:
A/N’s share of the tax benefit realized by Charter pursuant to the Tax Receivable Agreement (percentage)	50.00%
Minimum estimated obligation due to A/N under the Tax Receivable Agreement	$ 0
Maximum estimated obligation due to A/N under the Tax Receivable Agreement	3,000,000,000
Step-up in the tax basis of Charter Holdings’ assets resulting from the exchange of common units held by A/N for shares of Charter Class A common stock	487,000,000	580,000,000
Deferred tax asset resulting from the exchange of common units held by A/N for shares of Charter Class A common stock	85,000,000	82,000,000
Obligation due to A/N resulting from the exchange of common units held by A/N for shares of Charter Class A common stock	154,000,000
Benefit arising from remeasurement of a liability as a result of tax reform	101,000,000
Uncertain Tax Positions:
Unrecognized tax benefits, beginning balance	172,000,000	5,000,000
Additions on prior year tax positions	1,000,000	1,000,000
Additions on current year tax positions	12,000,000	7,000,000
Additions on tax positions assumed in business acquisitions		181,000,000
Reductions on settlements and expirations with taxing authorities	(21,000,000)	(22,000,000)
Unrecognized tax benefits, ending balance	164,000,000	172,000,000	$ 5,000,000
Unrecognized tax benefits that would impact the effective tax rate	171,000,000
Decrease in unrecognized tax benefits that is reasonably possible in 2017	58,000,000
Interest and penalties accrued on uncertain income tax positions	$ 39,000,000	$ 34,000,000
Common Noncontrolling Interest [Member]
Tax Receivable Agreement:
Number of Charter Holdings common units held by A/N exchanged for shares of Charter Class A common stock (in units)	1.3	1.9
Purchase price of Charter Holdings common units held by A/N exchanged for shares of Charter Class A common stock	$ 400,000,000	$ 537,000,000
TWC Transaction [Member]
Valuation Allowance:
Decrease in valuation allowance		3,300,000,000
Operating Loss Carryforwards [Member] \| TWC Transaction [Member]
Valuation Allowance:
Deferred tax assets, valuation allowance	(87,000,000)	(145,000,000)
State Operating Loss Carryforwards and Other [Member]
Valuation Allowance:
Deferred tax assets, valuation allowance	(50,000,000)	(55,000,000)
Internal Revenue Service (IRS) [Member]
Net Operating Loss Carryforwards:
Net operating loss carryforwards	10,900,000,000
Deferred tax assets, operating loss carryforwards subject to expiration	2,300,000,000
State and Local Jurisdiction [Member]
Net Operating Loss Carryforwards:
Deferred tax assets, operating loss carryforwards subject to expiration	359,000,000
Additional Paid-in Capital [Member]
Tax Receivable Agreement:
Obligation due to A/N resulting from the exchange of common units held by A/N for shares of Charter Class A common stock	$ 118,000,000	$ 137,000,000

Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings (Loss) Per Share
Net income (loss) attributable to Charter shareholders	$ 9,553	$ 48	$ 139	$ 155	$ 454	$ 189	$ 3,067	$ (188)	$ 9,895	$ 3,522	$ (271)
Net income attributable to Charter shareholders after assumed conversions									$ 10,114	$ 3,744
Weighted average common shares outstanding, basic (in shares)	240,833,636	253,923,805	263,460,911	269,004,817	268,584,368	271,263,259	183,362,776	101,552,093	256,720,715	206,539,100	101,152,647
Effect of assumed exercise or issuance of shares related to stock plans on denominator (in shares)									4,012,145	3,088,871
Weighted average common shares outstanding, diluted (in shares)	278,257,245	258,341,851	267,309,261	273,199,509	272,624,270	275,373,202	205,214,266	101,552,093	296,703,956	234,791,439	101,152,647
Earnings (loss) per common share, basic	$ 39.66	$ 0.19	$ 0.53	$ 0.58	$ 1.69	$ 0.70	$ 16.73	$ (1.86)	$ 38.55	$ 17.05	$ (2.68)
Earnings (loss) per common share, diluted	$ 34.56	$ 0.19	$ 0.52	$ 0.57	$ 1.67	$ 0.69	$ 15.17	$ (1.86)	$ 34.09	$ 15.94	$ (2.68)
Common Units [Member]
Earnings (Loss) Per Share
Effect of Charter Holdings dilutive securities on numerator									$ 69	$ 129
Effect of Charter Holdings dilutive securities on denominator (in shares)									26,637,596	19,333,227
Convertible Preferred Units [Member]
Earnings (Loss) Per Share
Effect of Charter Holdings dilutive securities on numerator									$ 150	$ 93
Effect of Charter Holdings dilutive securities on denominator (in shares)									9,333,500	5,830,241

Related Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transactions:
Value of Charter Holdings units purchased from A/N	$ 1,482	$ 206
A/N’s share of the tax benefit realized by Charter pursuant to the Tax Receivable Agreement (percentage)	50.00%
Dr. John Malone's voting interest in Liberty Interactive Corp. (percentage)	39.20%
Revenue from HSN, Inc. and QVC, Inc.	$ 77	53	$ 17
Dr. John Malone's voting interest in Discovery Communications, Inc. for election of directors (percentage)	28.10%
Advance Newhouse Programming Partnership's ownership percentage in Series A preferred stock of Discovery Communications, Inc. (percentage)	100.00%
Advance Newhouse Programming Partnership's ownership percentage in Series C preferred stock of Discovery Communications, Inc. (percentage)	100.00%
Advance Newhouse Programming Partnership's voting interest in Discovery Communications, Inc. for election of directors	31.10%
Dr. John Malone's ownership percentage in Starz (percentage)	5.50%
Dr. John Malone's voting interest in Starz (percentage)	7.90%
Maximum [Member]
Related Party Transactions:
Value of Charter Holdings units purchased from A/N	$ 400	$ 537
Percent of total operating costs and expenses paid to Discovery Communications, Inc. and Starz (percentage)	3.00%	3.00%	3.00%
Equity Method Investee [Member]
Related Party Transactions:
Payments to related parties	$ 317	$ 171	$ 28
Revenue from related parties	$ 9	$ 7
Class B Common Stock [Member]
Related Party Transactions:
Dr. John Malone's ownership percentage in Discovery Communications, Inc. (percentage)	93.60%
Common Class C [Member]
Related Party Transactions:
Dr. John Malone's ownership percentage in Discovery Communications, Inc. (percentage)	6.00%

Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Contractual Obligations
Total contractual obligations future minimum payments			$ 15,302
Contractual obligations future minimum payments, 2018			2,306
Contractual obligations future minimum payments, 2019			1,305
Contractual obligations future minimum payments, 2020			1,060
Contractual obligations future minimum payments, 2021			818
Contractual obligations future minimum payments, 2022			631
Contractual obligations future minimum payments, 2023 and threafter			9,182
Capital Lease Obligations			123
Rent expense recognized under operating leases			321	$ 215	$ 49
Programming costs			10,596	7,034	2,678
Utility pole rental fees			167	115	53
Franchise fees and other franchise-related costs			705	$ 534	$ 212
Letters of credit outstanding			291
Letters of credit outstanding secured under the Charter Operating credit facility			137
Pension plan contributions			18
Monetary damages sought by plaintiff in Sprint litigation	$ 6	$ 140
Capital and Operating Lease Obligations [Member]
Contractual Obligations
Total contractual obligations future minimum payments			1,512
Contractual obligations future minimum payments, 2018			286
Contractual obligations future minimum payments, 2019			235
Contractual obligations future minimum payments, 2020			199
Contractual obligations future minimum payments, 2021			165
Contractual obligations future minimum payments, 2022			132
Contractual obligations future minimum payments, 2023 and threafter			495
Programming Minimum Commitments [Member]
Contractual Obligations
Total contractual obligations future minimum payments			164
Contractual obligations future minimum payments, 2018			103
Contractual obligations future minimum payments, 2019			39
Contractual obligations future minimum payments, 2020			22
Contractual obligations future minimum payments, 2021			0
Contractual obligations future minimum payments, 2022			0
Contractual obligations future minimum payments, 2023 and threafter			0
Other Contractual Obligations [Member]
Contractual Obligations
Total contractual obligations future minimum payments			13,626
Contractual obligations future minimum payments, 2018			1,917
Contractual obligations future minimum payments, 2019			1,031
Contractual obligations future minimum payments, 2020			839
Contractual obligations future minimum payments, 2021			653
Contractual obligations future minimum payments, 2022			499
Contractual obligations future minimum payments, 2023 and threafter			$ 8,687
Minimum [Member]
Contractual Obligations
Programming fee term			3 years
Maximum [Member]
Contractual Obligations
Programming fee term			10 years

Employee Benefit Plans (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2017	Dec. 31, 2016	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	May 18, 2016
Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning of year				$ 3,260	$ 3,260	$ 0
Benefit obligation assumed in the TWC Transaction					0	4,009
Service cost					0	86
Interest cost					133	87
Curtailment amendment					0	(675)
Actuarial gain					406	(149)
Lump sum distributions					(185)	0
Benefits paid					(45)	(98)
Projected benefit obligation, end of year		$ 3,569	$ 3,260		3,569	3,260	$ 0
Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of year				2,946	2,946	0
Fair value of plan assets acquired in the TWC Transaction					0	2,877
Actual return on plan assets					539	162
Employer contributions					18	5
Lump sum distributions					(185)	0
Benefits paid					(45)	(98)
Fair value of plan assets, end of year		3,273	$ 2,946		3,273	2,946	0
Accumulated Benefit Obligation at end of year								$ 3,569	$ 3,260
Funded status								(296)	(314)
Projected benefit obligation, qualified plans								3,528	3,204
Accumulated benefit obligation, qualified plans								3,528	3,204
Fair value of plan assets, qualified plans								3,273	2,946
Projected benefit obligation, nonqualfied plan								41	56
Accumulated benefit obligation, nonqualified plan								41	56
Fair value of plan assets, nonqualified plan								0	0
Amounts recognized in consolidated balance sheet, noncurrent asset								1	1
Amounts recognized in consolidated balance sheet, current liability								(5)	(6)
Amounts recognized in consolidated balance sheet, long-term liability								(292)	(309)
Net amounts recognized in consolidated balance sheet								$ (296)	$ (314)
Service cost					0	86
Expected return on plan assets					(189)	(116)
Pension curtailment gain					0	(675)
Remeasurement (gain) loss		$ 25		$ 30	55	(195)
Net periodic pension (benefit) cost					$ (1)	$ (813)
Discount rate assumption used to calculate benefit obligation (percentage)								3.68%	4.20%	3.99%
Expected long-term rate of return on plan assets assumption used to calculate net periodic benefit cost (percentage)					6.50%	6.50%
Discount rate assumption used to calculate net periodic benefit cost (percentage)	3.99%	3.88%	3.72%	4.20%	3.88%	3.72%
Rate of compensation increase assumption used to calculate net periodic benefit cost (percentage)	4.25%		0.00%		0.00%	0.00%
Expected long-term rate of return on plan assets in next fiscal year assumption used to calculate net periodic benefit cost (percentage)					6.50%
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate Next Fiscal Year					3.68%
Pension plan investment assets								$ 3,235	$ 2,955
Pension plan investment assets, accrued investment income and other receivables								34	107
Pension plan investment assets, accrued liabilties									(120)
Pension plan investment assets measured at net asset value								4	4
Fair value of plan assets		$ 3,273	$ 2,946	$ 2,946	$ 2,946	$ 0	0	3,273	2,946
Pension plan expected future benefit payments, 2018								186
Pension plan expected future benefit payments, 2019								188
Pension plan expected future benefit payments, 2020								191
Pension plan expected future benefit payments, 2021								192
Pension plan expected future benefit payments, 2022								193
Pension plan expected future benefit payments, 2023 and thereafter								944
Employer contributions to multiemployer plans					$ 18	31
Multiemployer Plans, Withdrawal Obligation								83
Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								3	1,721
Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								3,232	1,234
Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
401(k) Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan, maximum annual contributions per employee (percentage)					50.00%
Defined contribution plan, employer matching contribution (percentage)					100.00%
Defined contribution plan, employer matching contribution percent of employees' gross pay (percentage)					6.00%
Defined contribution plan, employer's contributions					$ 274	147	$ 23
Retirement Accumulation Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan, employer's contributions					$ 139	$ 48
Defined contribution plan, employer's contribution percent of employees' eligible pay (percentage)					3.00%
Cash [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								3	2
Cash [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								3	2
Cash [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
Cash [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
Domestic Common Stocks [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									1,065
Domestic Common Stocks [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									1,065
Domestic Common Stocks [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Domestic Common Stocks [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
International Common Stocks [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									391
International Common Stocks [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									391
International Common Stocks [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
International Common Stocks [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Commingled Equity Funds [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								2,368	348
Commingled Equity Funds [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
Commingled Equity Funds [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								2,368	348
Commingled Equity Funds [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
Other Equity Securities [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									3
Other Equity Securities [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									3
Other Equity Securities [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Other Equity Securities [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Corporate Debt Securities [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								1	394
Corporate Debt Securities [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
Corporate Debt Securities [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								1	394
Corporate Debt Securities [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
Commingled Bond Funds [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								795	273
Commingled Bond Funds [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
Commingled Bond Funds [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								795	273
Commingled Bond Funds [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
U.S. Treasury Debt Securities [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									260
U.S. Treasury Debt Securities [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									260
U.S. Treasury Debt Securities [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
U.S. Treasury Debt Securities [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Collective Trust Funds [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								68	75
Collective Trust Funds [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								0	0
Collective Trust Funds [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								68	75
Collective Trust Funds [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets								$ 0	0
U.S. Government Agency Asset-Backed Debt Securities [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									53
U.S. Government Agency Asset-Backed Debt Securities [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
U.S. Government Agency Asset-Backed Debt Securities [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									53
U.S. Government Agency Asset-Backed Debt Securities [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Corporate Asset-Backed Debt Securities [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									2
Corporate Asset-Backed Debt Securities [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Corporate Asset-Backed Debt Securities [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									2
Corporate Asset-Backed Debt Securities [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Other Fixed-Income Securities [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									89
Other Fixed-Income Securities [Member] \| Level 1 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Other Fixed-Income Securities [Member] \| Level 2 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									89
Other Fixed-Income Securities [Member] \| Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets									0
Foreign Exchange Contract [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Pension plan investment assets, accrued investment income and other receivables									70
Pension plan investment assets, accrued liabilties									$ (71)
Return Seeking Securities [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Target pension plan asset allocation					75.00%
Actual pension plan asset allocation								73.10%	64.40%
Liability Matching Securities [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Target pension plan asset allocation					25.00%
Actual pension plan asset allocation								26.70%	35.40%
Other Investments [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Target pension plan asset allocation					0.00%
Actual pension plan asset allocation								0.20%	0.20%

Recently Issued Accounting Standards (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jan. 01, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment recorded upon adoption of ASU 2016-09				$ 140
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 88	$ 899	$ 22,300
Retained Earnings (Accumulated Deficit) [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment recorded upon adoption of ASU 2016-09				131
Additional Paid-in Capital [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment recorded upon adoption of ASU 2016-09				$ 9

- Definition

Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

+ References + Details

Unaudited Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Unaudited Quarterly Financial Data [Abstract]
Revenues	$ 10,602	$ 10,458	$ 10,357	$ 10,164	$ 10,275	$ 10,037	$ 6,161	$ 2,530	$ 41,581	$ 29,003	$ 9,754
Income from operations	1,204	909	1,052	941	1,073	911	170	302	4,106	2,456	1,114
Net income (loss) attributable to Charter shareholders	$ 9,553	$ 48	$ 139	$ 155	$ 454	$ 189	$ 3,067	$ (188)	$ 9,895	$ 3,522	$ (271)
Earnings (loss) per common share, basic	$ 39.66	$ 0.19	$ 0.53	$ 0.58	$ 1.69	$ 0.70	$ 16.73	$ (1.86)	$ 38.55	$ 17.05	$ (2.68)
Earnings (loss) per common share, diluted	$ 34.56	$ 0.19	$ 0.52	$ 0.57	$ 1.67	$ 0.69	$ 15.17	$ (1.86)	$ 34.09	$ 15.94	$ (2.68)
Weighted average common shares outstanding, basic (in shares)	240,833,636	253,923,805	263,460,911	269,004,817	268,584,368	271,263,259	183,362,776	101,552,093	256,720,715	206,539,100	101,152,647
Weighted average common shares outstanding, diluted (in shares)	278,257,245	258,341,851	267,309,261	273,199,509	272,624,270	275,373,202	205,214,266	101,552,093	296,703,956	234,791,439	101,152,647

Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 621	$ 1,535	$ 5	$ 3
Accounts receivable, net	1,635	1,432
Receivables from related party	0	0
Prepaid expenses and other current assets	299	333
Total current assets	2,555	3,300
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	33,888	32,963
Customer relationships, net	11,951	14,608
Franchises	67,319	67,316
Goodwill	29,554	29,509
Total investment in cable properties, net	142,712	144,396
INVESTMENT IN SUBSIDIARIES	0	0
LOANS RECEIVABLE - RELATED PARTY	0	0
OTHER NONCURRENT ASSETS	1,356	1,371
Total assets	146,623	149,067
CURRENT LIABILITIES:
Accounts payable and accrued liabilities	9,045	7,544
Payables to related party	0	0
Current portion of long-term debt	2,045	2,028
Total current liabilities	11,090	9,572
LONG-TERM DEBT	68,186	59,719
LOANS PAYABLE - RELATED PARTY	0	0
DEFERRED INCOME TAXES	17,314	26,665
OTHER LONG-TERM LIABILITIES	2,502	2,745
SHAREHOLDERS'/MEMBER'S EQUITY
Controlling interest	39,084	40,139
Noncontrolling interests	8,447	10,227
Total shareholders'/member's equity	47,531	50,366	(46)	146
Total liabilities and shareholders'/member's equity	146,623	149,067
Eliminations [Member]
CURRENT ASSETS:
Cash and cash equivalents	0	0	0	0
Accounts receivable, net	0	0
Receivables from related party	(690)	(683)
Prepaid expenses and other current assets	0	0
Total current assets	(690)	(683)
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	0	0
Customer relationships, net	0	0
Franchises	0	0
Goodwill	0	0
Total investment in cable properties, net	0	0
INVESTMENT IN SUBSIDIARIES	(201,801)	(231,290)
LOANS RECEIVABLE - RELATED PARTY	(1,399)	(1,134)
OTHER NONCURRENT ASSETS	0	0
Total assets	(203,890)	(233,107)
CURRENT LIABILITIES:
Accounts payable and accrued liabilities	0	0
Payables to related party	(690)	(683)
Current portion of long-term debt	0	0
Total current liabilities	(690)	(683)
LONG-TERM DEBT	0	0
LOANS PAYABLE - RELATED PARTY	(1,399)	(1,134)
DEFERRED INCOME TAXES	0	0
OTHER LONG-TERM LIABILITIES	0	0
SHAREHOLDERS'/MEMBER'S EQUITY
Controlling interest	(201,801)	(231,290)
Noncontrolling interests	0	0
Total shareholders'/member's equity	(201,801)	(231,290)
Total liabilities and shareholders'/member's equity	(203,890)	(233,107)
Charter [Member]
CURRENT ASSETS:
Cash and cash equivalents	0	57	0	3
Accounts receivable, net	0	34
Receivables from related party	22	170
Prepaid expenses and other current assets	22	0
Total current assets	44	261
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	0	0
Customer relationships, net	0	0
Franchises	0	0
Goodwill	0	0
Total investment in cable properties, net	0	0
INVESTMENT IN SUBSIDIARIES	56,263	66,692
LOANS RECEIVABLE - RELATED PARTY	233	0
OTHER NONCURRENT ASSETS	0	0
Total assets	56,540	66,953
CURRENT LIABILITIES:
Accounts payable and accrued liabilities	4	22
Payables to related party	0	0
Current portion of long-term debt	0	0
Total current liabilities	4	22
LONG-TERM DEBT	0	0
LOANS PAYABLE - RELATED PARTY	0	0
DEFERRED INCOME TAXES	17,268	26,637
OTHER LONG-TERM LIABILITIES	184	155
SHAREHOLDERS'/MEMBER'S EQUITY
Controlling interest	39,084	40,139
Noncontrolling interests	0	0
Total shareholders'/member's equity	39,084	40,139
Total liabilities and shareholders'/member's equity	56,540	66,953
Intermediate Holding Companies [Member]
CURRENT ASSETS:
Cash and cash equivalents	291	154	0	0
Accounts receivable, net	24	11
Receivables from related party	613	451
Prepaid expenses and other current assets	34	33
Total current assets	962	649
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	336	245
Customer relationships, net	0	0
Franchises	0	0
Goodwill	0	0
Total investment in cable properties, net	336	245
INVESTMENT IN SUBSIDIARIES	63,558	75,838
LOANS RECEIVABLE - RELATED PARTY	655	640
OTHER NONCURRENT ASSETS	223	214
Total assets	65,734	77,586
CURRENT LIABILITIES:
Accounts payable and accrued liabilities	900	625
Payables to related party	0	0
Current portion of long-term debt	0	0
Total current liabilities	900	625
LONG-TERM DEBT	0	0
LOANS PAYABLE - RELATED PARTY	0	0
DEFERRED INCOME TAXES	14	3
OTHER LONG-TERM LIABILITIES	134	64
SHAREHOLDERS'/MEMBER'S EQUITY
Controlling interest	56,263	66,692
Noncontrolling interests	8,423	10,202
Total shareholders'/member's equity	64,686	76,894
Total liabilities and shareholders'/member's equity	65,734	77,586
Safari Escrow Entities [Member]
CURRENT ASSETS:
Cash and cash equivalents		0	0	0
CCO Holdings [Member]
CURRENT ASSETS:
Cash and cash equivalents	0	0	0	0
Accounts receivable, net	0	0
Receivables from related party	55	62
Prepaid expenses and other current assets	0	0
Total current assets	55	62
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	0	0
Customer relationships, net	0	0
Franchises	0	0
Goodwill	0	0
Total investment in cable properties, net	0	0
INVESTMENT IN SUBSIDIARIES	81,980	88,760
LOANS RECEIVABLE - RELATED PARTY	511	494
OTHER NONCURRENT ASSETS	0	0
Total assets	82,546	89,316
CURRENT LIABILITIES:
Accounts payable and accrued liabilities	280	219
Payables to related party	0	0
Current portion of long-term debt	0	0
Total current liabilities	280	219
LONG-TERM DEBT	18,708	13,259
LOANS PAYABLE - RELATED PARTY	0	0
DEFERRED INCOME TAXES	0	0
OTHER LONG-TERM LIABILITIES	0	0
SHAREHOLDERS'/MEMBER'S EQUITY
Controlling interest	63,558	75,838
Noncontrolling interests	0	0
Total shareholders'/member's equity	63,558	75,838
Total liabilities and shareholders'/member's equity	82,546	89,316
Charter Operating and Restricted Subsidiaries [Member]
CURRENT ASSETS:
Cash and cash equivalents	330	1,324	$ 5	$ 0
Accounts receivable, net	1,611	1,387
Receivables from related party	0	0
Prepaid expenses and other current assets	243	300
Total current assets	2,184	3,011
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net	33,552	32,718
Customer relationships, net	11,951	14,608
Franchises	67,319	67,316
Goodwill	29,554	29,509
Total investment in cable properties, net	142,376	144,151
INVESTMENT IN SUBSIDIARIES	0	0
LOANS RECEIVABLE - RELATED PARTY	0	0
OTHER NONCURRENT ASSETS	1,133	1,157
Total assets	145,693	148,319
CURRENT LIABILITIES:
Accounts payable and accrued liabilities	7,861	6,678
Payables to related party	690	683
Current portion of long-term debt	2,045	2,028
Total current liabilities	10,596	9,389
LONG-TERM DEBT	49,478	46,460
LOANS PAYABLE - RELATED PARTY	1,399	1,134
DEFERRED INCOME TAXES	32	25
OTHER LONG-TERM LIABILITIES	2,184	2,526
SHAREHOLDERS'/MEMBER'S EQUITY
Controlling interest	81,980	88,760
Noncontrolling interests	24	25
Total shareholders'/member's equity	82,004	88,785
Total liabilities and shareholders'/member's equity	$ 145,693	$ 148,319

Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
REVENUES	$ 10,602	$ 10,458	$ 10,357	$ 10,164	$ 10,275	$ 10,037	$ 6,161	$ 2,530	$ 41,581	$ 29,003	$ 9,754
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)									26,541	18,655	6,426
Depreciation and amortization									10,588	6,907	2,125
Other operating (income) expenses, net									346	985	89
Total costs and expenses									37,475	26,547	8,640
Income (loss) from operations	1,204	909	1,052	941	1,073	911	170	302	4,106	2,456	1,114
OTHER INCOME (EXPENSES):
Interest income (expense), net									(3,090)	(2,499)	(1,306)
Loss on extinguishment of debt									(40)	(111)	(128)
Gain (loss) on financial instruments, net									69	89	(4)
Other pension benefits									1	899	0
Other expense, net									(18)	(14)	(7)
Equity in income (loss) of subisidiaries									0	0	0
Total other income (expenses)									(3,078)	(1,636)	(1,445)
Income (loss) before income taxes									1,028	820	(331)
INCOME TAX BENEFIT (EXPENSE)									9,087	2,925	60
Consolidated net income (loss)									10,115	3,745	(271)
Less: Net (income) loss – noncontrolling interests									(220)	(223)	0
Net income (loss)	$ 9,553	$ 48	$ 139	$ 155	$ 454	$ 189	$ 3,067	$ (188)	9,895	3,522	(271)
Eliminations [Member]
REVENUES									(1,273)	(1,255)	(324)
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)									(1,273)	(1,255)	(324)
Depreciation and amortization									0	0	0
Other operating (income) expenses, net									0	0	0
Total costs and expenses									(1,273)	(1,255)	(324)
Income (loss) from operations									0	0	0
OTHER INCOME (EXPENSES):
Interest income (expense), net									0	0	0
Loss on extinguishment of debt									0	0	0
Gain (loss) on financial instruments, net									0	0	0
Other pension benefits									0	0
Other expense, net									0	0	0
Equity in income (loss) of subisidiaries									(3,361)	(4,210)	(734)
Total other income (expenses)									(3,361)	(4,210)	(734)
Income (loss) before income taxes									(3,361)	(4,210)	(734)
INCOME TAX BENEFIT (EXPENSE)									0	0	0
Consolidated net income (loss)									(3,361)	(4,210)	(734)
Less: Net (income) loss – noncontrolling interests									0		0
Net income (loss)									(3,361)	(4,210)	(734)
Charter [Member]
REVENUES									90	251	25
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)									90	251	25
Depreciation and amortization									0	0	0
Other operating (income) expenses, net									(101)	262	0
Total costs and expenses									(11)	513	25
Income (loss) from operations									101	(262)	0
OTHER INCOME (EXPENSES):
Interest income (expense), net									5	0	0
Loss on extinguishment of debt									0	0	0
Gain (loss) on financial instruments, net									0	0	0
Other pension benefits									0	0
Other expense, net									0	0	0
Equity in income (loss) of subisidiaries									680	851	(121)
Total other income (expenses)									685	851	(121)
Income (loss) before income taxes									786	589	(121)
INCOME TAX BENEFIT (EXPENSE)									9,109	2,933	(150)
Consolidated net income (loss)									9,895	3,522	(271)
Less: Net (income) loss – noncontrolling interests									0		0
Net income (loss)									9,895	3,522	(271)
Intermediate Holding Companies [Member]
REVENUES									1,186	1,004	299
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)									1,164	989	299
Depreciation and amortization									9	5	0
Other operating (income) expenses, net									3	1	0
Total costs and expenses									1,176	995	299
Income (loss) from operations									10	9	0
OTHER INCOME (EXPENSES):
Interest income (expense), net									20	14	8
Loss on extinguishment of debt									0	0	0
Gain (loss) on financial instruments, net									0	0	0
Other pension benefits									0	0
Other expense, net									(14)	(11)	(7)
Equity in income (loss) of subisidiaries									882	1,066	(168)
Total other income (expenses)									888	1,069	(167)
Income (loss) before income taxes									898	1,078	(167)
INCOME TAX BENEFIT (EXPENSE)									1	(5)	0
Consolidated net income (loss)									899	1,073	(167)
Less: Net (income) loss – noncontrolling interests									(219)		46
Net income (loss)									680	851	(121)
Safari Escrow Entities [Member]
REVENUES										0	0
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)										0	0
Depreciation and amortization										0	0
Other operating (income) expenses, net										0	0
Total costs and expenses										0	0
Income (loss) from operations										0	0
OTHER INCOME (EXPENSES):
Interest income (expense), net										(390)	(474)
Loss on extinguishment of debt										0	(2)
Gain (loss) on financial instruments, net										0	0
Other pension benefits										0
Other expense, net										0	0
Equity in income (loss) of subisidiaries										0	0
Total other income (expenses)										(390)	(476)
Income (loss) before income taxes										(390)	(476)
INCOME TAX BENEFIT (EXPENSE)										0	0
Consolidated net income (loss)										(390)	(476)
Less: Net (income) loss – noncontrolling interests											0
Net income (loss)										(390)	(476)
CCO Holdings [Member]
REVENUES									0	0	0
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)									0	0	0
Depreciation and amortization									0	0	0
Other operating (income) expenses, net									0	0	0
Total costs and expenses									0	0	0
Income (loss) from operations									0	0	0
OTHER INCOME (EXPENSES):
Interest income (expense), net									(883)	(727)	(642)
Loss on extinguishment of debt									(34)	(110)	(123)
Gain (loss) on financial instruments, net									0	0	0
Other pension benefits									0	0
Other expense, net									0	0	0
Equity in income (loss) of subisidiaries									1,799	2,293	1,073
Total other income (expenses)									882	1,456	308
Income (loss) before income taxes									882	1,456	308
INCOME TAX BENEFIT (EXPENSE)									0	0	0
Consolidated net income (loss)									882	1,456	308
Less: Net (income) loss – noncontrolling interests									0		0
Net income (loss)									882	1,456	308
Charter Operating and Restricted Subsidiaries [Member]
REVENUES									41,578	29,003	9,754
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)									26,560	18,670	6,426
Depreciation and amortization									10,579	6,902	2,125
Other operating (income) expenses, net									444	722	89
Total costs and expenses									37,583	26,294	8,640
Income (loss) from operations									3,995	2,709	1,114
OTHER INCOME (EXPENSES):
Interest income (expense), net									(2,232)	(1,396)	(151)
Loss on extinguishment of debt									(6)	(1)	0
Gain (loss) on financial instruments, net									69	89	(4)
Other pension benefits									1	899
Other expense, net									(4)	(3)	0
Equity in income (loss) of subisidiaries									0	0	(50)
Total other income (expenses)									(2,172)	(412)	(205)
Income (loss) before income taxes									1,823	2,297	909
INCOME TAX BENEFIT (EXPENSE)									(23)	(3)	210
Consolidated net income (loss)									1,800	2,294	1,119
Less: Net (income) loss – noncontrolling interests									(1)		(46)
Net income (loss)									$ 1,799	$ 2,293	1,073
Unrestricted Subisidiary – CCO Safari [Member]
REVENUES											0
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)											0
Depreciation and amortization											0
Other operating (income) expenses, net											0
Total costs and expenses											0
Income (loss) from operations											0
OTHER INCOME (EXPENSES):
Interest income (expense), net											(47)
Loss on extinguishment of debt											(3)
Gain (loss) on financial instruments, net											0
Other expense, net											0
Equity in income (loss) of subisidiaries											0
Total other income (expenses)											(50)
Income (loss) before income taxes											(50)
INCOME TAX BENEFIT (EXPENSE)											0
Consolidated net income (loss)											(50)
Less: Net (income) loss – noncontrolling interests											0
Net income (loss)											$ (50)

Condensed Consolidating Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Consolidated net income (loss)	$ 10,115	$ 3,745	$ (271)
Net impact of interest rate derivative instruments	5	8	9
Foreign currency translation adjustment	1	(2)	0
Consolidated comprehensive income (loss)	10,121	3,751	(262)
Less: Comprehensive income attributable to noncontrolling interests	(220)	(223)	0
Comprehensive income (loss)	9,901	3,528	(262)
Eliminations [Member]
Consolidated net income (loss)	(3,361)	(4,210)	(734)
Net impact of interest rate derivative instruments	(15)	(24)	(27)
Foreign currency translation adjustment	(3)	6
Consolidated comprehensive income (loss)	(3,379)	(4,228)	(761)
Less: Comprehensive income attributable to noncontrolling interests	0	0	0
Comprehensive income (loss)	(3,379)	(4,228)	(761)
Charter [Member]
Consolidated net income (loss)	9,895	3,522	(271)
Net impact of interest rate derivative instruments	5	8	9
Foreign currency translation adjustment	1	(2)
Consolidated comprehensive income (loss)	9,901	3,528	(262)
Less: Comprehensive income attributable to noncontrolling interests	0	0	0
Comprehensive income (loss)	9,901	3,528	(262)
Intermediate Holding Companies [Member]
Consolidated net income (loss)	899	1,073	(167)
Net impact of interest rate derivative instruments	5	8	9
Foreign currency translation adjustment	1	(2)
Consolidated comprehensive income (loss)	905	1,079	(158)
Less: Comprehensive income attributable to noncontrolling interests	(219)	(222)	46
Comprehensive income (loss)	686	857	(112)
Safari Escrow Entities [Member]
Consolidated net income (loss)		(390)	(476)
Net impact of interest rate derivative instruments		0	0
Foreign currency translation adjustment		0
Consolidated comprehensive income (loss)		(390)	(476)
Less: Comprehensive income attributable to noncontrolling interests		0	0
Comprehensive income (loss)		(390)	(476)
CCO Holdings [Member]
Consolidated net income (loss)	882	1,456	308
Net impact of interest rate derivative instruments	5	8	9
Foreign currency translation adjustment	1	(2)
Consolidated comprehensive income (loss)	888	1,462	317
Less: Comprehensive income attributable to noncontrolling interests	0	0	0
Comprehensive income (loss)	888	1,462	317
Charter Operating and Restricted Subsidiaries [Member]
Consolidated net income (loss)	1,800	2,294	1,119
Net impact of interest rate derivative instruments	5	8	9
Foreign currency translation adjustment	1	(2)
Consolidated comprehensive income (loss)	1,806	2,300	1,128
Less: Comprehensive income attributable to noncontrolling interests	(1)	(1)	(46)
Comprehensive income (loss)	$ 1,805	$ 2,299	1,082
Unrestricted Subisidiary – CCO Safari [Member]
Consolidated net income (loss)			(50)
Net impact of interest rate derivative instruments			0
Consolidated comprehensive income (loss)			(50)
Less: Comprehensive income attributable to noncontrolling interests			0
Comprehensive income (loss)			$ (50)

Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
NET CASH FLOWS FROM OPERATING ACTIVITIES	$ 11,954	$ 8,041	$ 2,359
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(8,681)	(5,325)	(1,840)
Change in accrued expenses related to capital expenditures	820	603	28
Purchases of cable systems, net	(9)	(28,810)	0
Real estate investments through variable interest entity	(105)	0	0
Contribution to subsidiaries	0	0	0
Distributions from subsidiaries	0	0	0
Change in restricted cash and cash equivalents	0	22,264	(15,153)
Other, net	(123)	(22)	(67)
Net cash flows from investing activities	(8,098)	(11,290)	(17,032)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	25,276	12,344	26,045
Repayments of long-term debt	(16,507)	(10,521)	(11,326)
Borrowings (payments) loans payable - related parties	0	0	0
Payments for debt issuance costs	(111)	(284)	(36)
Issuance of equity	0	5,000	0
Purchase of treasury stock	(11,715)	(1,562)	(38)
Proceeds from exercise of stock options and warrants	116	86	30
Settlement of restricted stock units	0	(59)	0
Purchase of noncontrolling interest	(1,665)	(218)	0
Distributions to noncontrolling interest	(153)	(96)	0
Proceeds from termination of interest rate derivatives	0	88	0
Contributions from parent	0	0	0
Distributions to parent	0	0	0
Other, net	(11)	1	0
Net cash flows from financing activities	(4,770)	4,779	14,675
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(914)	1,530	2
CASH AND CASH EQUIVALENTS, beginning of period	1,535	5	3
CASH AND CASH EQUIVALENTS, end of period	621	1,535	5
Eliminations [Member]
NET CASH FLOWS FROM OPERATING ACTIVITIES	0	0	0
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	0	0	0
Change in accrued expenses related to capital expenditures	0	0	0
Purchases of cable systems, net	0	0
Real estate investments through variable interest entity	0
Contribution to subsidiaries	808	1,928	180
Distributions from subsidiaries	(34,818)	(56,547)	(1,117)
Change in restricted cash and cash equivalents		0	0
Other, net	0	0	0
Net cash flows from investing activities	(34,010)	(54,619)	(937)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	0	0	0
Repayments of long-term debt	0	0	0
Borrowings (payments) loans payable - related parties	0	0	0
Payments for debt issuance costs	0	0	0
Issuance of equity		0
Purchase of treasury stock	0	0	0
Proceeds from exercise of stock options and warrants	0	0	0
Settlement of restricted stock units		0
Purchase of noncontrolling interest	0	0
Distributions to noncontrolling interest	0	0
Proceeds from termination of interest rate derivatives		0
Contributions from parent	(808)	(1,928)	(180)
Distributions to parent	34,818	56,547	1,117
Other, net	0	0
Net cash flows from financing activities	34,010	54,619	937
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	0	0	0
CASH AND CASH EQUIVALENTS, beginning of period	0	0	0
CASH AND CASH EQUIVALENTS, end of period	0	0	0
Charter [Member]
NET CASH FLOWS FROM OPERATING ACTIVITIES	159	(225)	(1)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	0	0	0
Change in accrued expenses related to capital expenditures	0	0	0
Purchases of cable systems, net	0	(26,781)
Real estate investments through variable interest entity	0
Contribution to subsidiaries	(115)	(1,013)	(20)
Distributions from subsidiaries	11,732	24,552	26
Change in restricted cash and cash equivalents		0	0
Other, net	0	0	0
Net cash flows from investing activities	11,617	(3,242)	6
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	0	0	0
Repayments of long-term debt	0	0	0
Borrowings (payments) loans payable - related parties	(234)	0	0
Payments for debt issuance costs	0	0	0
Issuance of equity		5,000
Purchase of treasury stock	(11,715)	(1,562)	(38)
Proceeds from exercise of stock options and warrants	116	86	30
Settlement of restricted stock units		0
Purchase of noncontrolling interest	0	0
Distributions to noncontrolling interest	0	0
Proceeds from termination of interest rate derivatives		0
Contributions from parent	0	0	0
Distributions to parent	0	0	0
Other, net	0	0
Net cash flows from financing activities	(11,833)	3,524	(8)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(57)	57	(3)
CASH AND CASH EQUIVALENTS, beginning of period	57	0	3
CASH AND CASH EQUIVALENTS, end of period	0	57	0
Intermediate Holding Companies [Member]
NET CASH FLOWS FROM OPERATING ACTIVITIES	187	(36)	(5)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	0	0	0
Change in accrued expenses related to capital expenditures	0	0	0
Purchases of cable systems, net	0	(2,022)
Real estate investments through variable interest entity	(105)
Contribution to subsidiaries	0	(478)	(90)
Distributions from subsidiaries	13,488	26,899	376
Change in restricted cash and cash equivalents		0	0
Other, net	0	0	(55)
Net cash flows from investing activities	13,383	24,399	231
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	0	0	0
Repayments of long-term debt	0	0	0
Borrowings (payments) loans payable - related parties	0	(300)	0
Payments for debt issuance costs	0	0	0
Issuance of equity		0
Purchase of treasury stock	0	0	0
Proceeds from exercise of stock options and warrants	0	0	0
Settlement of restricted stock units		(59)
Purchase of noncontrolling interest	(1,665)	(218)
Distributions to noncontrolling interest	(151)	(96)
Proceeds from termination of interest rate derivatives		0
Contributions from parent	115	1,013	95
Distributions to parent	(11,732)	(24,552)	(321)
Other, net	0	3
Net cash flows from financing activities	(13,433)	(24,209)	(226)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	137	154	0
CASH AND CASH EQUIVALENTS, beginning of period	154	0	0
CASH AND CASH EQUIVALENTS, end of period	291	154	0
Safari Escrow Entities [Member]
NET CASH FLOWS FROM OPERATING ACTIVITIES		(463)	(192)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment		0	0
Change in accrued expenses related to capital expenditures		0	0
Purchases of cable systems, net		0
Contribution to subsidiaries		0	0
Distributions from subsidiaries		0	0
Change in restricted cash and cash equivalents		22,264	(18,667)
Other, net		0	0
Net cash flows from investing activities		22,264	(18,667)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt		0	21,790
Repayments of long-term debt		0	(3,500)
Borrowings (payments) loans payable - related parties		553	581
Payments for debt issuance costs		0	(12)
Issuance of equity		0
Purchase of treasury stock		0	0
Proceeds from exercise of stock options and warrants		0	0
Settlement of restricted stock units		0
Purchase of noncontrolling interest		0
Distributions to noncontrolling interest		0
Proceeds from termination of interest rate derivatives		0
Contributions from parent		0	0
Distributions to parent		(22,353)	0
Other, net		(1)
Net cash flows from financing activities		(21,801)	18,859
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		0	0
CASH AND CASH EQUIVALENTS, beginning of period	0	0	0
CASH AND CASH EQUIVALENTS, end of period		0	0
CCO Holdings [Member]
NET CASH FLOWS FROM OPERATING ACTIVITIES	(814)	(711)	(663)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	0	0	0
Change in accrued expenses related to capital expenditures	0	0	0
Purchases of cable systems, net	0	0
Real estate investments through variable interest entity	0
Contribution to subsidiaries	(693)	(437)	(46)
Distributions from subsidiaries	9,598	5,096	715
Change in restricted cash and cash equivalents		0	0
Other, net	0	0	0
Net cash flows from investing activities	8,905	4,659	669
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	6,231	3,201	2,700
Repayments of long-term debt	(775)	(2,937)	(2,598)
Borrowings (payments) loans payable - related parties	0	(71)	(18)
Payments for debt issuance costs	(59)	(73)	(24)
Issuance of equity		0
Purchase of treasury stock	0	0	0
Proceeds from exercise of stock options and warrants	0	0	0
Settlement of restricted stock units		0
Purchase of noncontrolling interest	0	0
Distributions to noncontrolling interest	0	0
Proceeds from termination of interest rate derivatives		0
Contributions from parent	0	478	15
Distributions to parent	(13,488)	(4,546)	(81)
Other, net	0	0
Net cash flows from financing activities	(8,091)	(3,948)	(6)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	0	0	0
CASH AND CASH EQUIVALENTS, beginning of period	0	0	0
CASH AND CASH EQUIVALENTS, end of period	0	0	0
Charter Operating and Restricted Subsidiaries [Member]
NET CASH FLOWS FROM OPERATING ACTIVITIES	12,422	9,476	3,275
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(8,681)	(5,325)	(1,840)
Change in accrued expenses related to capital expenditures	820	603	28
Purchases of cable systems, net	(9)	(7)
Real estate investments through variable interest entity	0
Contribution to subsidiaries	0	0	(24)
Distributions from subsidiaries	0	0	0
Change in restricted cash and cash equivalents		0	0
Other, net	(123)	(22)	(12)
Net cash flows from investing activities	(7,993)	(4,751)	(1,848)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	19,045	9,143	1,555
Repayments of long-term debt	(15,732)	(7,584)	(1,745)
Borrowings (payments) loans payable - related parties	234	(182)	(563)
Payments for debt issuance costs	(52)	(211)	0
Issuance of equity		0
Purchase of treasury stock	0	0	0
Proceeds from exercise of stock options and warrants	0	0	0
Settlement of restricted stock units		0
Purchase of noncontrolling interest	0	0
Distributions to noncontrolling interest	(2)	0
Proceeds from termination of interest rate derivatives		88
Contributions from parent	693	437	46
Distributions to parent	(9,598)	(5,096)	(715)
Other, net	(11)	(1)
Net cash flows from financing activities	(5,423)	(3,406)	(1,422)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(994)	1,319	5
CASH AND CASH EQUIVALENTS, beginning of period	1,324	5	0
CASH AND CASH EQUIVALENTS, end of period	$ 330	1,324	5
Unrestricted Subisidiary – CCO Safari [Member]
NET CASH FLOWS FROM OPERATING ACTIVITIES			(55)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment			0
Change in accrued expenses related to capital expenditures			0
Contribution to subsidiaries			0
Distributions from subsidiaries			0
Change in restricted cash and cash equivalents			3,514
Other, net			0
Net cash flows from investing activities			3,514
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt			0
Repayments of long-term debt			(3,483)
Borrowings (payments) loans payable - related parties			0
Payments for debt issuance costs			0
Purchase of treasury stock			0
Proceeds from exercise of stock options and warrants			0
Contributions from parent			24
Distributions to parent			0
Net cash flows from financing activities			(3,459)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS			0
CASH AND CASH EQUIVALENTS, beginning of period		$ 0	0
CASH AND CASH EQUIVALENTS, end of period			$ 0