Note 13 - Goodwill and Intangible Assets - Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Goodwill, Gross	$ 2,741	$ 2,742	$ 2,762
Goodwill	2,642	2,643	2,663
Other intangible assets, net	290	415
Total intangible assets, gross	9,215	9,225
Total intangible assets, accumulated amortization	(972)	(847)
Total intangible assets, net	8,243	8,378	$ 8,630
Network Affiliate [Member]
Finite-Lived Intangible Assets, Gross	216	216
Finite-Lived Intangible Assets, Accumulated Amortization	(160)	(126)
Other intangible assets, net	56	90
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Gross	992	992
Finite-Lived Intangible Assets, Accumulated Amortization	(758)	(667)
Other intangible assets, net	234	325
Intangible Assets Subject to Amortization [Member]
Finite-Lived Intangible Assets, Gross	1,208	1,208
Finite-Lived Intangible Assets, Accumulated Amortization	(918)	(793)
Other intangible assets, net	290	415
Broadcast Licenses [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill), Gross	5,365	5,374
Indefinite-Lived Intangible Assets (Excluding Goodwill), Accumulated Amortization	(54)	(54)
Indefinite-Lived Intangible Assets (Excluding Goodwill)	5,311	5,320
Goodwill Not Amortizable [Member]
Goodwill, Gross	2,642	2,643
Goodwill, Accumulated Amortization	0	0
Goodwill	2,642	2,643
Intangible Assets Not Subject to Amortization [Member]
Goodwill and Indefinite-Lived Intangible Assets, Gross	8,007	8,017
Goodwill and Indefinite-lived Intangible Assets, Accumulated Amortization	(54)	(54)
Goodwill and Indefinite-Lived Assets, Net	$ 7,953	$ 7,963