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Note 11 - Goodwill and Intangible Assets - Changes in Goodwill and Other Intangible Assets, Net (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Goodwill $ 2,660   $ 2,663
Goodwill, acquisitions and adjustments 3    
Broadcast licenses 5,320   5,331
Finite-lived intangible assets 537   636
Amortization (99) $ (104)  
Total intangible assets net of accumulated amortization 8,517   8,630
Total intangible assets net of accumulated amortization (14)    
Finite-Lived Intangible Assets [Member]      
Acquisition and adjustments 0    
Acquisition and adjustments 0    
Amortization (99)    
Broadcast Licenses [Member]      
Broadcast licenses 5,320   $ 5,331
Acquisition and adjustments (11)    
Acquisition and adjustments $ 11