Quarterly report pursuant to Section 13 or 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
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
May 18, 2015
Equity Method Investments and Operating Activities Segment [Line Items]          
Share of earnings (losses) of affiliates, net   $ 87 $ (21) $ 90  
investment in affiliate $ 2,561   2,561    
Liberty Broadband          
Equity Method Investments and Operating Activities Segment [Line Items]          
investment in affiliate         $ 2,400
QVC Group Common Stock          
Equity Method Investments and Operating Activities Segment [Line Items]          
Share of earnings (losses) of affiliates, net $ 9 9 $ 30 33  
QVC Group Common Stock | HSN, Inc.          
Equity Method Investments and Operating Activities Segment [Line Items]          
Percentage ownership 38.00%   38.00%    
Share of earnings (losses) of affiliates, net $ 10 12 $ 32 37  
QVC Group Common Stock | Other          
Equity Method Investments and Operating Activities Segment [Line Items]          
Share of earnings (losses) of affiliates, net (1) (3) (2) (4)  
Liberty Ventures common stock          
Equity Method Investments and Operating Activities Segment [Line Items]          
Share of earnings (losses) of affiliates, net (9) 78 (51) 57  
investment in affiliate $ 2,561   $ 2,561    
Liberty Ventures common stock | Expedia          
Equity Method Investments and Operating Activities Segment [Line Items]          
Percentage ownership 16.00%   16.00%    
Share of earnings (losses) of affiliates, net $ 2 76 $ (22) 80  
Liberty Ventures common stock | FTD          
Equity Method Investments and Operating Activities Segment [Line Items]          
Percentage ownership 37.00%   37.00%    
Share of earnings (losses) of affiliates, net $ 2 7 $ (1) 5  
Liberty Ventures common stock | Other          
Equity Method Investments and Operating Activities Segment [Line Items]          
Share of earnings (losses) of affiliates, net $ (13) $ (5) $ (28) $ (28)  
Liberty Ventures common stock | Liberty Broadband          
Equity Method Investments and Operating Activities Segment [Line Items]          
Percentage ownership 24.00%   24.00%