Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Changes In The Carrying Amount Of Goodwill) (Details)

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Intangible Assets (Changes In The Carrying Amount Of Goodwill) (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Amortization of Intangible Assets $ 196 $ 109 $ 388 $ 217
Goodwill [Roll Forward]        
Balance, beginning of the year     9,556  
Foreign currency translation adjustments     (67)  
Goodwill, Acquired During Period     32  
Balance, ending of the year 9,521   9,521  
QVC [Member]
        
Goodwill [Roll Forward]        
Balance, beginning of the year     5,349  
Foreign currency translation adjustments     (64)  
Goodwill, Acquired During Period     0  
Balance, ending of the year 5,285   5,285  
E-commerce [Member]
        
Goodwill [Roll Forward]        
Balance, beginning of the year     558  
Foreign currency translation adjustments     0  
Goodwill, Acquired During Period     (9)  
Balance, ending of the year 549   549  
TripAdvisor, Inc. [Member]
        
Goodwill, Allocation Adjustment     41  
Goodwill [Roll Forward]        
Balance, beginning of the year     3,649  
Foreign currency translation adjustments     (3)  
Goodwill, Acquired During Period     41 [1]  
Balance, ending of the year $ 3,687   $ 3,687  
[1] (1) The $41 million increase to TripAdvisor goodwill during the period is primarily attributable to certain acquisitions made by TripAdvisor during the six months ended June 30, 2013 and to a lesser extent certain purchase price allocation adjustments recorded in connection with our acquisition of a controlling interest in TripAdvisor during December 2012.