Annual report pursuant to Section 13 and 15(d)

Television Distribution Rights, Net (Future Amortization Expense) (Details)

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Television Distribution Rights, Net (Future Amortization Expense) (Details) - Television distribution rights - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]      
Commission Expense $ 350 $ 363 $ 298
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]      
2020 120    
2021 17    
2022 3    
2023 0    
2024 $ 0