Note 3 - Acquisitions and Divestitures (Details Textual) - USD ($) $ in Millions					12 Months Ended
	Apr. 30, 2025	Jul. 01, 2024	Feb. 08, 2024	May 01, 2023	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
SGH [Member]
Business Combination, Consideration Transferred					$ 2
BCI [Member]
Business Combination, Consideration Transferred					80
AMG [Member]
Business Combination, Consideration Transferred					$ 171
WPGA With Marquee Broadcasting Transaction [Member]
Business Combination, Consideration Transferred				$ 6
WPGA With Marquee Broadcasting Transaction [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)							3 years
WPGA With Marquee Broadcasting Transaction [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)							40 years
KNIN With Marquee Broadcasting Transaction [Member]
Gain (Loss) on Disposition of Business							$ (14)
Gain (Loss) on Disposition of Business							$ (14)
Sale of Premion [Member]
Proceeds from Sale of Other Investments	$ 21
Investment Owned, Cost	14
Gain (Loss) on Sale of Other Investments	$ 7
Sale of Television Stations KCWY and KGWN [Member]
Fair Value, Construction Permit Acquired		$ 1
Gain (Loss) on Disposition of Business		(14)
Gain (Loss) on Disposition of Business		$ (14)
Broadcast Licenses Acquired in 2024 [Member]
Indefinite-Lived Intangible Assets Acquired						$ 1
Sale of Broadcast Music, Inc. To a Shareholder Group Led by New Mountain Capital, Llc. [Member]
Proceeds from Sale of Other Investments			$ 110
KNIN With Marquee Broadcasting Transaction [Member]
Disposal Group, Including Discontinued Operation, Consideration				$ 6