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)

v3.5.0.2
Investments In Available-For-Sale Securities And Other Cost Investments (Investments In Available-For-Sale Securities And Other Cost Investments) (Details)
shares in Millions, $ in Millions
9 Months Ended
Sep. 30, 2016
USD ($)
shares
Sep. 30, 2015
USD ($)
May 18, 2016
May 12, 2016
May 11, 2016
Dec. 31, 2015
USD ($)
Schedule of Investments in available-for-sale securities and other cost investments            
Investments in available-for-sale securities and other cost investments $ 1,819         $ 1,353
Proceeds from Sale and Maturity of Marketable Securities 1,174 $ 1,180        
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
Proceeds from Sale and Maturity of Marketable Securities 12 160        
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 1,815         1,349
Proceeds from Sale and Maturity of Marketable Securities 1,162 $ 1,020        
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 80         71
Charter Communications, Inc. | 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 1,447          
Share exchange ratio     1      
Interval Leisure Group | 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 $ 286          
Ownership Interest In Investee       12.80% 28.70%  
Time Warner Inc            
Schedule of Investments in available-for-sale securities and other cost investments            
Available for Sale Securities Number of Shares Sold | shares 4          
Time Warner Inc | 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 $ 2         284
Proceeds from Sale and Maturity of Marketable Securities $ 341          
Time Warner Cable Inc | 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           $ 994