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Intangible Assets, Net (Tables)
3 Months Ended
Mar. 31, 2013
Intangible Assets, Net  
Schedule of finite lived and indefinite lived intangible assets by major class
   At March 31, 2013 
   Estimated Gross     
   useful carrying Accumulated Net carrying 
   lives amount amortization amount 
 Acquired definite-lived intangible assets:           
  License agreements and other 3 - 10 years $98 $(89) $9 
  Internally-developed franchises 11 - 12 years  309  (254)  55 
 Acquired indefinite-lived intangible assets:           
  Activision trademark Indefinite  386  ---  386 
  Acquired trade names Indefinite  47  ---  47 
 Total   $840 $(343) $497 
              
              
              
   At December 31, 2012 
   Estimated Gross       
   usefulcarryingAccumulated Net carrying 
   livesamountamortization 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 
Schedule of finite lived intangible assets, future amortization expense
 2013 (remaining nine months) $ 21 
 2014   19 
 2015   10 
 2016   6 
 2017   4 
 Thereafter   4 
      
 Total $ 64