Note 10 - Goodwill and Intangible Assets - Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Goodwill	$ 2,649	$ 2,649
Other intangible assets, net	773	825
Total intangible assets, gross	9,266	9,260
Total intangible assets, accumulated amortization	(535)	(483)
Total intangible assets, net	8,731	8,777
Network Affiliate [Member]
Finite-Lived Intangible Assets, Gross	204	204
Finite-Lived Intangible Assets, Accumulated Amortization	(55)	(44)
Other intangible assets, net	149	160
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Gross	1,051	1,051
Finite-Lived Intangible Assets, Accumulated Amortization	(427)	(386)
Other intangible assets, net	624	665
Intangible Assets Subject to Amortization [Member]
Finite-Lived Intangible Assets, Gross	1,255	1,255
Finite-Lived Intangible Assets, Accumulated Amortization	(482)	(430)
Other intangible assets, net	773	825
Broadcast Licenses [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Gross	5,362	5,356
Indefinite-Lived Intangible Assets (Excluding Goodwill), Accumulated Amortization	(53)	(53)
Indefinite-Lived Intangible Assets (Excluding Goodwill)	5,309	5,303
Goodwill Not Amortizable [Member]
Goodwill, Gross	2,649	2,649
Goodwill, Accumulated Amortization	0	0
Goodwill	2,649	2,649
Intangible Assets Not Subject to Amortization [Member]
Goodwill and Indefinite-Lived Intangible Assets, Gross	8,011	8,005
Goodwill and Indefinite-lived Intangible Assets, Accumulated Amortization	(53)	(53)
Goodwill and Indefinite-Lived Assets, Net	$ 7,958	$ 7,952