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, 2019
Dec. 31, 2018
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 1,698 $ 1,641
Liberty Sirius XM Group    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 638 629
Liberty Sirius XM Group | Sirius XM Canada    
Investments in Affiliates Accounted for Using the Equity Method    
Percentage ownership 70.00%  
Investments in affiliates $ 632 613
Liberty Sirius XM Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 6 16
Braves Group    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 104 92
Braves Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 104 92
Formula One Group    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 956 920
Formula One Group | Live Nation    
Investments in Affiliates Accounted for Using the Equity Method    
Percentage ownership 33.00%  
Fair value $ 4,620  
Investments in affiliates 792 743
Formula One Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 164 $ 177