Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method (Details)

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Investments In Affiliates Accounted For Using The Equity Method (Details) - USD ($)
$ in Millions
Sep. 30, 2015
Dec. 31, 2014
Equity Method Investments and Operating Activities Segment [Line Items]    
Investments in affiliates, accounted for using the equity method $ 1,506 $ 1,633
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]    
Investments in affiliates, accounted for using the equity method $ 204 $ 375
QVC Group Common Stock | HSN, Inc.    
Equity Method Investments and Operating Activities Segment [Line Items]    
Percentage ownership 38.00%  
Investments in affiliates, accounted for using the equity method $ 159 328
QVC Group Common Stock | Equity method investment, other    
Equity Method Investments and Operating Activities Segment [Line Items]    
Investments in affiliates, accounted for using the equity method 45 47
Liberty Ventures common stock    
Equity Method Investments and Operating Activities Segment [Line Items]    
Investments in affiliates, accounted for using the equity method 1,302 1,258
Liberty Ventures common stock | Equity method investment, other    
Equity Method Investments and Operating Activities Segment [Line Items]    
Investments in affiliates, accounted for using the equity method $ 333 389
Liberty Ventures common stock | Expedia    
Equity Method Investments and Operating Activities Segment [Line Items]    
Percentage ownership 18.00%  
Investments in affiliates, accounted for using the equity method $ 626 514
Liberty Ventures common stock | FTD    
Equity Method Investments and Operating Activities Segment [Line Items]    
Percentage ownership 36.00%  
Investments in affiliates, accounted for using the equity method $ 343 $ 355
Fair Value, Inputs (Level 1) | QVC Group Common Stock | HSN, Inc.    
Equity Method Investments and Operating Activities Segment [Line Items]    
Equity Method Investment, Quoted Market Value 1,146  
Fair Value, Inputs (Level 1) | Liberty Ventures common stock | Expedia    
Equity Method Investments and Operating Activities Segment [Line Items]    
Equity Method Investment, Quoted Market Value 2,778  
Fair Value, Inputs (Level 1) | Liberty Ventures common stock | FTD    
Equity Method Investments and Operating Activities Segment [Line Items]    
Equity Method Investment, Quoted Market Value $ 304