Operating Costs and Expenses (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Costs and Expenses [Abstract]
Programming	$ 2,459chtr_ProgrammingExpense	$ 2,146chtr_ProgrammingExpense	$ 1,965chtr_ProgrammingExpense
Franchise, Regulatory and Connectivity	428	399	383
Cost to Service Customers	1,675chtr_CostToServiceCustomers	1,561chtr_CostToServiceCustomers	1,394chtr_CostToServiceCustomers
Marketing	529us-gaap_MarketingAndAdvertisingExpense	488us-gaap_MarketingAndAdvertisingExpense	431us-gaap_MarketingAndAdvertisingExpense
Other	882us-gaap_OtherCostAndExpenseOperating	751us-gaap_OtherCostAndExpenseOperating	687us-gaap_OtherCostAndExpenseOperating
Operating costs and expenses	$ 5,973us-gaap_OperatingExpenses	$ 5,345us-gaap_OperatingExpenses	$ 4,860us-gaap_OperatingExpenses

Cost to Service Customers

No definition available.

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- Definition

Franchise, Regulatory and Connectivity Expense

+ References

No definition available.

+ Details

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- Definition

Programming Expense

+ References

No definition available.

+ Details

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- Definition

The total expense recognized in the period for promotion, public relations, and brand or product advertising.

+ References

+ Details

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- Details

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- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

+ References

No definition available.

+ Details

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- Definition

The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 3

-Article 5

+ Details

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