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Note 13 - Goodwill and Intangible Assets - Changes in Goodwill and Other Intangible Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Goodwill $ 2,649 $ 1,460  
Goodwill, Net additions 14 1,211  
Goodwill, Dispositions 0 (22)  
Goodwill 2,663 2,649 $ 1,460
Broadcast licenses 5,303    
Broadcast licenses 5,331 5,303  
Finite-lived intangible assets 825 395  
Finite-lived intangible assets, Net additions 18 547  
Amortization of Intangible Assets (207) (117) (105)
Finite-lived intangible assets 636 825 395
Total intangible assets net of accumulated amortization 8,777 5,434  
Total intangible assets net of accumulated amortization, Net additions 60 3,529  
Total intangible assets net of accumulated amortization, Dispositions 0 (69)  
Total intangible assets net of accumulated amortization 8,630 8,777 5,434
Broadcast Licenses [Member]      
Broadcast licenses 5,303 3,579  
Indefinite-Lived Intangible Assets Acquired 28 1,771  
Broadcast licenses, Dispositions 0    
Broadcast licenses $ 5,331 $ 5,303 $ 3,579