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Accounts Payable and Accrued Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Accounts Payable and Accrued Liabilities [Abstract]    
Accounts payable – trade $ 786 $ 758
Deferred revenue 460 494
Accrued liabilities:    
Programming costs 2,042 2,044
Labor 1,028 1,052
Capital expenditures 1,441 1,472
Interest 1,052 1,045
Taxes and regulatory fees 537 526
Property and casualty 458 424
Other 867 990
Total $ 8,671 $ 8,805