Organization and Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 30, 2010	Jun. 30, 2011	Dec. 31, 2010
Organization and Basis of Presentation [Abstract]
Equity interest in Charter Communications Holding Company, LLC (in hundredths)		100.00%
Restricted cash in escrow accounts pending bankruptcy resolution		$ 28	$ 28
Restricted cash used to pay professional fees	$ 18

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

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