Note 10 - Goodwill and Intangible Assets - Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Goodwill	$ 2,663	$ 2,663
Other intangible assets, net	586	636
Total intangible assets, gross	9,321	9,321
Total intangible assets, accumulated amortization	(741)	(691)
Total intangible assets, net	8,580	8,630
Network Affiliate [Member]
Finite-Lived Intangible Assets, Gross	218	218
Finite-Lived Intangible Assets, Accumulated Amortization	(98)	(88)
Other intangible assets, net	120	130
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Gross	1,055	1,055
Finite-Lived Intangible Assets, Accumulated Amortization	(589)	(549)
Other intangible assets, net	466	506
Intangible Assets Subject to Amortization [Member]
Finite-Lived Intangible Assets, Gross	1,273	1,273
Finite-Lived Intangible Assets, Accumulated Amortization	(687)	(637)
Other intangible assets, net	586	636
Broadcast Licenses [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Gross	5,385	5,385
Indefinite-Lived Intangible Assets (Excluding Goodwill), Accumulated Amortization	(54)	(54)
Indefinite-Lived Intangible Assets (Excluding Goodwill)	5,331	5,331
Goodwill Not Amortizable [Member]
Goodwill, Gross	2,663	2,663
Goodwill, Accumulated Amortization	0	0
Goodwill	2,663	2,663
Intangible Assets Not Subject to Amortization [Member]
Goodwill and Indefinite-Lived Intangible Assets, Gross	8,048	8,048
Goodwill and Indefinite-lived Intangible Assets, Accumulated Amortization	(54)	(54)
Goodwill and Indefinite-Lived Assets, Net	$ 7,994	$ 7,994