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, 2015
Dec. 31, 2014
Dec. 31, 2013
Equity Method Investments and Operating Activities Segment [Line Items]      
Share of earnings (losses)ffiliates, net $ (60) $ 39 $ 33
HSN, Inc.      
Equity Method Investments and Operating Activities Segment [Line Items]      
Percentage ownership 38.00%    
FTD      
Equity Method Investments and Operating Activities Segment [Line Items]      
Percentage ownership   35.00%  
QVC Group Common Stock      
Equity Method Investments and Operating Activities Segment [Line Items]      
Share of earnings (losses)ffiliates, net $ 55 $ 51 48
QVC Group Common Stock | HSN, Inc.      
Equity Method Investments and Operating Activities Segment [Line Items]      
Percentage ownership 38.00%    
Share of earnings (losses)ffiliates, net $ 64 60 61
QVC Group Common Stock | Other      
Equity Method Investments and Operating Activities Segment [Line Items]      
Share of earnings (losses)ffiliates, net (9) (9) (13)
Liberty Ventures common stock      
Equity Method Investments and Operating Activities Segment [Line Items]      
Share of earnings (losses)ffiliates, net $ (115) (12) (15)
Liberty Ventures common stock | Expedia      
Equity Method Investments and Operating Activities Segment [Line Items]      
Percentage ownership 16.00%    
Share of earnings (losses)ffiliates, net $ 118 $ 58 31
Voting ownership interest in investee 52.00%    
Liberty Ventures common stock | FTD      
Equity Method Investments and Operating Activities Segment [Line Items]      
Percentage ownership 37.00% 35.00%  
Share of earnings (losses)ffiliates, net $ (83)    
Liberty Ventures common stock | Other      
Equity Method Investments and Operating Activities Segment [Line Items]      
Share of earnings (losses)ffiliates, net $ (150) $ (70) $ (46)