v2.4.0.6
Net Sales of Similar Products and Services (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Revenue from External Customer [Line Items]    
Net sales $ 16,070 $ 13,185
Media
   
Revenue from External Customer [Line Items]    
Net sales 5,058 4,710
Electronics and other general merchandise
   
Revenue from External Customer [Line Items]    
Net sales 10,214 7,975
Other
   
Revenue from External Customer [Line Items]    
Net sales $ 798 [1] $ 500 [1]
[1] Includes sales from non-retail activities, such as Amazon Web Services ("AWS") in the North America segment, advertising services, and our co-branded credit card agreements in both segments.