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Note 3 - Acquisitions and Divestitures (Details Textual) - USD ($) $ in Millions |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 01, 2024 | Feb. 08, 2024 | May 01, 2023 | Apr. 01, 2022 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
WPGA With Marquee Broadcasting Transaction [Member] |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  | $ 6 |  |  |  |
WPGA With Marquee Broadcasting Transaction [Member] | Maximum [Member] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  | 40 years |  |  |  |
WPGA With Marquee Broadcasting Transaction [Member] | Minimum [Member] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  |  |  |  | 3 years |
KNIN With Marquee Broadcasting Transaction [Member] |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  | $ 14 |
Atlanta Telemundo Transaction [Member] |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  | $ 6 | $ 31 |  |  |
Atlanta Telemundo Transaction [Member] | Maximum [Member] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  |  | 40 years |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  | 4 years |  |  |
Atlanta Telemundo Transaction [Member] | Minimum [Member] |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  |  | 3 years |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  | 1 year |  |  |
Broadcast Licenses Acquired in 2024 [Member] |  |  |  |  |  |  |
Indefinite-Lived Intangible Assets Acquired |  |  |  |  | $ 1 |  |
Broadcast Licenses Acquired in 2022 [Member] |  |  |  |  |  |  |
Indefinite-Lived Intangible Assets Acquired |  |  |  |  |  |  | $ 27
Sale of Television Stations KCWY and KGWN [Member] |  |  |  |  |  |  |
Fair Value, Construction Permit Acquired | $ 1 |  |  |  |  |  |
Gain (Loss) on Disposition of Business | $ 14 |  |  |  |  |  |
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 |  |  |  |

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