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
Jun. 30, 2021
Dec. 31, 2020
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 881 $ 1,018
Liberty SiriusXM Group    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 746 886
Liberty SiriusXM Group | Live Nation    
Investments in Affiliates Accounted for Using the Equity Method    
Percentage ownership 32.00%  
Fair value $ 6,100  
Investments in affiliates   163
Liberty SiriusXM Group | Sirius XM Canada    
Investments in Affiliates Accounted for Using the Equity Method    
Percentage ownership 70.00%  
Investments in affiliates $ 667 643
Liberty SiriusXM Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 79 80
Braves Group    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 102 94
Braves Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 102 94
Formula One Group    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates 33 38
Formula One Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Investments in affiliates $ 33 $ 38