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Intangible Assets, Net (Tables)
12 Months Ended
Dec. 31, 2012
Intangible Assets, Net  
Schedule of finite lived and indefinite lived intangible assets by major class
   At December 31, 2012 
   Estimated Gross        
   useful carrying Accumulated Impairment Net carrying 
   lives amount amortization charge amount 
 Acquired definite-lived intangible assets:              
  License agreements and other 3 - 10 years $98 $(88) $--- $10 
  Internally developed franchises 11 - 12 years  309  (251)  ---  58 
 Acquired indefinite-lived intangible assets:              
  Activision trademark Indefinite  386  ---  ---  386 
  Acquired trade names Indefinite  47  ---  ---  47 
 Total   $840 $(339) $--- $501 
                 
                 
                 
   At December 31, 2011 
   Estimated Gross          
   usefulcarryingAccumulated Impairment Net carrying 
   livesamountamortization charge amount 
 Acquired definite-lived intangible assets:              
  License agreements and other 3 - 10 years $88 $(82) $--- $6 
  Game engines 2 - 5 years  32  (32)  ---  --- 
  Internally developed franchises 11 - 12 years  309  (227)  ---  82 
  Distribution agreements 4 years  18  (18)  ---  --- 
 Acquired indefinite-lived intangible assets:              
  Activision trademark Indefinite  386  ---  ---  386 
  Acquired trade names Indefinite  47  ---  ---  47 
 Total   $880 $(359) $--- $521 
Schedule of finite lived intangible assets, future amortization expense
 2013 $24 
 2014  20 
 2015  10 
 2016  6 
 2017  4 
 Thereafter   4 
      
 Total  $68