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, 2018
Mar. 31, 2017
Schedule of Equity Method Investments [Line Items]    
Share of earnings (losses) of affiliates, net $ (8) $ (4)
Liberty Sirius XM Group    
Schedule of Equity Method Investments [Line Items]    
Share of earnings (losses) of affiliates, net 1 3
Liberty Sirius XM Group | Sirius XM Canada    
Schedule of Equity Method Investments [Line Items]    
Share of earnings (losses) of affiliates, net 1 3
Braves Group    
Schedule of Equity Method Investments [Line Items]    
Share of earnings (losses) of affiliates, net 3 3
Braves Group | Other    
Schedule of Equity Method Investments [Line Items]    
Share of earnings (losses) of affiliates, net 3 3
Formula One Group    
Schedule of Equity Method Investments [Line Items]    
Share of earnings (losses) of affiliates, net (12) (10)
Formula One Group | Live Nation    
Schedule of Equity Method Investments [Line Items]    
Share of earnings (losses) of affiliates, net (16) (15)
Formula One Group | Other    
Schedule of Equity Method Investments [Line Items]    
Share of earnings (losses) of affiliates, net $ 4 $ 5