Quarterly report pursuant to Section 13 or 15(d)

Investments In Available-For-Sale Securities And Other Cost Investments (Investments In Available-For-Sale Securities And Other Cost Investments) (Details)

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Investments In Available-For-Sale Securities And Other Cost Investments (Investments In Available-For-Sale Securities And Other Cost Investments) (Details) - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments $ 1,482 $ 1,353
QVC Group Common Stock    
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments 4 4
Liberty Ventures common stock    
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments 1,478 1,349
Other Investments | QVC Group Common Stock    
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments 4 4
Other Investments | Liberty Ventures common stock    
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments 73 71
Time Warner Inc | Fair Value Option, Other Eligible Items | Liberty Ventures common stock    
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments 309 284
Time Warner Cable Inc | Fair Value Option, Other Eligible Items | Liberty Ventures common stock    
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments $ 1,096 $ 994