v3.19.3.a.u2
Goodwill And Other Intangible Assets (Schedule Of Amortized Intangible Assets) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Finite Lived Intangible Assets [Line Items]    
Intangible Assets $ 82,150 $ 79,365
Accumulated amortization 25,392 17,610
Foreign Currency Translation Adjustments $ (533) $ (346)
Finite-Lived Intangible Assets, Weighted-Average Useful Life 21 years 6 months 21 years 6 months
Wireless Acquisitions [Member]    
Finite Lived Intangible Assets [Line Items]    
Intangible Assets $ 2,981 $ 0
Accumulated amortization 156 0
Foreign Currency Translation Adjustments $ (243) $ 0
Finite-Lived Intangible Assets, Weighted-Average Useful Life 24 years 6 months 24 years 6 months
Trademarks and trade names [Member]    
Finite Lived Intangible Assets [Line Items]    
Intangible Assets $ 18,359 $ 18,371
Accumulated amortization 853 293
Foreign Currency Translation Adjustments $ (6) $ (7)
Finite-Lived Intangible Assets, Weighted-Average Useful Life 37 years 3 months 18 days 37 years 3 months 18 days
Distribution Networks [Member]    
Finite Lived Intangible Assets [Line Items]    
Intangible Assets $ 18,138 $ 18,040
Accumulated amortization 2,793 971
Foreign Currency Translation Adjustments $ 0 $ 0
Finite-Lived Intangible Assets, Weighted-Average Useful Life 10 years 10 years
Released Television And Film Content [Member]    
Finite Lived Intangible Assets [Line Items]    
Intangible Assets $ 10,941 $ 10,814
Accumulated amortization 4,974 2,988
Foreign Currency Translation Adjustments $ 0 $ 0
Finite-Lived Intangible Assets, Weighted-Average Useful Life 16 years 4 months 24 days 16 years 4 months 24 days
Customer Lists And Relationships [Member]    
Finite Lived Intangible Assets [Line Items]    
Intangible Assets $ 20,304 $ 20,516
Accumulated amortization 14,773 12,451
Foreign Currency Translation Adjustments $ (281) $ (314)
Finite-Lived Intangible Assets, Weighted-Average Useful Life 9 years 1 month 6 days 9 years 1 month 6 days
Other [Member]    
Finite Lived Intangible Assets [Line Items]    
Intangible Assets $ 11,427 $ 11,624
Accumulated amortization 1,843 907
Foreign Currency Translation Adjustments $ (3) $ (25)
Finite-Lived Intangible Assets, Weighted-Average Useful Life 20 years 4 months 24 days 20 years 4 months 24 days