Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets (Amortizable Intangibles) (Details)

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Goodwill and Other Intangible Assets (Amortizable Intangibles) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]      
Goodwill $ 18,386 $ 18,383 $ 14,345
Finite-Lived Intangible Assets, Gross 7,677 7,523  
Accumulated amortization (1,962) (1,331)  
Finite-Lived Intangible Assets, Net, Total 5,715 6,192  
Amortization of Intangible Assets 654 594 168
2019 669    
2020 640    
2021 477    
2022 416    
2023 388    
SIRIUS XM      
Finite-Lived Intangible Assets [Line Items]      
Goodwill 14,250 14,247 14,165
Formula 1      
Finite-Lived Intangible Assets [Line Items]      
Goodwill 3,956 3,956  
Corporate And Other      
Finite-Lived Intangible Assets [Line Items]      
Goodwill 180 180 $ 180
FIA Agreement      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 3,630 3,630  
Accumulated amortization (346) (157)  
Finite-Lived Intangible Assets, Net, Total $ 3,284 3,473  
Finite-Lived Intangible Asset, Useful Life 35 years    
Customer Relationships      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross $ 2,684 2,684  
Accumulated amortization (795) (501)  
Finite-Lived Intangible Assets, Net, Total $ 1,889 2,183  
Customer Relationships | Minimum      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 10 years    
Customer Relationships | Maximum      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 15 years    
Licensing Agreements      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross $ 351 330  
Accumulated amortization (182) (138)  
Finite-Lived Intangible Assets, Net, Total $ 169 192  
Finite-Lived Intangible Asset, Useful Life 15 years    
Other Intangible Assets      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross $ 1,012 879  
Accumulated amortization (639) (535)  
Finite-Lived Intangible Assets, Net, Total $ 373 $ 344