Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method (Details)

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Investments In Affiliates Accounted For Using The Equity Method (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 1,106 $ 1,625
Liberty SiriusXM Group    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 986 644
Liberty SiriusXM Group | Live Nation    
Investments in Affiliates Accounted for Using the Equity Method    
Percentage ownership 33.00%  
Fair value $ 3,752  
Investments in affiliates $ 289  
Liberty SiriusXM Group | Sirius XM Canada    
Investments in Affiliates Accounted for Using the Equity Method    
Percentage ownership 70.00%  
Investments in affiliates $ 617 636
Liberty SiriusXM Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 80 8
Braves Group    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 87 99
Braves Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 87 99
Formula One Group    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 33 882
Formula One Group | Live Nation    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates   746
Formula One Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 33 $ 136