Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross	$ 758	$ 788
Accumulated amortization	(461)	(439)
Net	297	349
Total intangible assets, gross	3,233	3,265
Total intangible assets	2,772	2,826
FCC licenses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	2,416	2,416
International broadcast licenses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	25	27
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	34	34
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross	257	249
Accumulated amortization	(140)	(123)
Net	117	126
Licenses
Finite-Lived Intangible Assets [Line Items]
Gross	140	168
Accumulated amortization	(53)	(50)
Net	87	118
Customer agreements
Finite-Lived Intangible Assets [Line Items]
Gross	124	120
Accumulated amortization	(98)	(97)
Net	26	23
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross	237	251
Accumulated amortization	(170)	(169)
Net	$ 67	$ 82