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Goodwill (Tables)
12 Months Ended
Dec. 31, 2011
Goodwill:  
Changes in the carrying amount of goodwill by operating segments
                 
     Activision Blizzard Distribution Total 
                 
 Balance at December 31, 2009 $6,964 $178 $12 $7,154 
  Tax benefit credited to goodwill   (22)  ---  ---  (22) 
 Balance at December 31, 2010 $6,942 $178 $12 $7,132 
  Tax benefit credited to goodwill   (12)  ---  ---  (12) 
  Issuance of contingent consideration  3  ---  ---  3 
  Impairment of goodwill  ---  ---  (12)  (12) 
 Balance at December 31, 2011 $6,933 $178 $--- $7,111 

                
                
    Activision Blizzard Distribution Total 
                
Balance at December 31, 2010:             
 Goodwill $6,942 $178 $12 $7,132 
 Total $6,942 $178 $12 $7,132 
Balance at December 31, 2011:             
 Goodwill $6,933 $178 $12 $7,123 
 Accumulated impairment losses  ---  ---  (12)  (12) 
 Total $6,933 $178 $--- $7,111