Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Charter Holdco Subsidiaries [Member]	Dec. 31, 2013 Charter Holdco Subsidiaries [Member]	May 01, 2013 Liberty Media [Member]
Income Tax Contingency [Line Items]
Income tax expense	$ 59	$ 57	$ 188	$ 124
Decrease in Deferred Income Taxes				67
Deferred Tax Liabilities, Net	1,600		1,600		1,400	226	226
Deferred Tax Assets, Net, Current	$ 19		$ 19		$ 16
Liberty Media interest in Charter (percentage)								27.00%