Annual report pursuant to Section 13 and 15(d)

Investments In Affiliates Accounted For Using The Equity Method (Summary of Share Earnings (Losses) of Affiliates) (Details)

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Investments In Affiliates Accounted For Using The Equity Method (Summary of Share Earnings (Losses) of Affiliates) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
May 18, 2016
Schedule of Equity Method Investments [Line Items]        
Share of earnings (losses) of affiliates, net $ (68) $ (178) $ (19)  
Investment in Affiliate 3,161      
Liberty Broadband        
Schedule of Equity Method Investments [Line Items]        
Investment in Affiliate       $ 2,400
QVC Group Common Stock        
Schedule of Equity Method Investments [Line Items]        
Share of earnings (losses) of affiliates, net 42 55 51  
QVC Group Common Stock | HSN, Inc.        
Schedule of Equity Method Investments [Line Items]        
Share of earnings (losses) of affiliates, net 48 64 60  
QVC Group Common Stock | Other        
Schedule of Equity Method Investments [Line Items]        
Share of earnings (losses) of affiliates, net (6) (9) (9)  
Liberty Ventures common stock        
Schedule of Equity Method Investments [Line Items]        
Share of earnings (losses) of affiliates, net (110) (233) (70)  
Investment in Affiliate 3,161      
Liberty Ventures common stock | FTD        
Schedule of Equity Method Investments [Line Items]        
Share of earnings (losses) of affiliates, net (41) (83)    
Liberty Ventures common stock | Other        
Schedule of Equity Method Investments [Line Items]        
Share of earnings (losses) of affiliates, net $ (69) $ (150) $ (70)