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Software Development Costs and Intellectual Property Licenses
12 Months Ended
Dec. 31, 2011
Software Development Costs and Intellectual Property Licenses  
Software Development Costs and Intellectual Property Licenses

6.       Software development and intellectual property licenses

 

The following table summarizes the components of our software development and intellectual property licenses (amounts in millions):

   At At 
   December 31, December 31, 
   2011 2010 
 Internally developed software costs  $115 $142 
 Payments made to third-party software developers   84  60 
 Total software development costs  $199 $202 
         
 Intellectual property licenses  $34 $73 

Amortization, write-offs and impairments of capitalized software development costs and intellectual property licenses are comprised of the following (amounts in millions):

 

    For the Years Ended December 31,
    2011 2010 2009
 Amortization $258 $319 $314
 Write-offs and impairments   60  66  21