Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method - Share Of Earnings (Losses) Of Affiliates (Details)

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Investments In Affiliates Accounted For Using The Equity Method - Share Of Earnings (Losses) Of Affiliates (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Investments in Affiliates Accounted for Using the Equity Method    
Share of earnings (losses) of affiliates, net $ (20) $ (8)
Liberty Sirius XM Group    
Investments in Affiliates Accounted for Using the Equity Method    
Share of earnings (losses) of affiliates, net (4) 1
Liberty Sirius XM Group | Sirius XM Canada    
Investments in Affiliates Accounted for Using the Equity Method    
Share of earnings (losses) of affiliates, net 3 1
Liberty Sirius XM Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Share of earnings (losses) of affiliates, net (7)  
Braves Group    
Investments in Affiliates Accounted for Using the Equity Method    
Share of earnings (losses) of affiliates, net 2 3
Braves Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Share of earnings (losses) of affiliates, net 2 3
Formula One Group    
Investments in Affiliates Accounted for Using the Equity Method    
Share of earnings (losses) of affiliates, net (18) (12)
Formula One Group | Live Nation    
Investments in Affiliates Accounted for Using the Equity Method    
Share of earnings (losses) of affiliates, net (23) (16)
Formula One Group | Other    
Investments in Affiliates Accounted for Using the Equity Method    
Share of earnings (losses) of affiliates, net $ 5 $ 4