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, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments $ 1,275 $ 1,501
Interactive Group
   
Schedule of Investments in available-for-sale securities and other cost investments    
Cost Method Investments 4 4
Investments in available-for-sale securities and other cost investments 4 4
Ventures Group
   
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments 1,271 1,497
TripAdvisor AFS Securities | Ventures Group
   
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments 83 188
Other Investments | Ventures Group
   
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments 75 262
Time Warner Cable Inc | Fair Value Option, Other Eligible Items | Ventures Group
   
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments 805 741
Time Warner Inc | Fair Value Option, Other Eligible Items | Ventures Group
   
Schedule of Investments in available-for-sale securities and other cost investments    
Investments in available-for-sale securities and other cost investments $ 308 $ 306