Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets - Intangible Assets Subject to Amortization (Details)

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Goodwill and Other Intangible Assets - Intangible Assets Subject to Amortization (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 5,426 $ 5,372
Accumulated amortization (4,471) (4,314)
Net carrying amount $ 955 1,058
Weighted average useful life at time of acquisition 9 years  
Television Distribution Rights    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 764 723
Accumulated amortization (624) (583)
Net carrying amount 140 140
Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 3,319 3,320
Accumulated amortization (2,891) (2,768)
Net carrying amount 428 552
Other Intangible Assets    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 1,343 1,329
Accumulated amortization (956) (963)
Net carrying amount $ 387 $ 366