Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable - trade	$ 522	$ 454
Deferred revenue	362	352
Accrued liabilities:
Programming costs	1,937	1,783
Labor	962	1,111
Capital expenditures	957	1,107
Interest	894	958
Taxes and regulatory fees	474	538
Property and casualty	398	394
Other	1,007	847
Total accounts payable and accrued liabilities	$ 7,513	$ 7,544