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Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property Plant And Equipment [Abstract]  
Schedule of Property, Plant and Equipment

(IN MILLIONS)

   December 31,
2012
    December 31,
2011
 

Land and buildings

   $ 341      $ 359   

Information and communication equipment

     839        771   

Furniture, equipment and other

     127        160   
  

 

 

   

 

 

 
     1,307        1,290   

Less accumulated depreciation and amortization

     (747     (681
  

 

 

   

 

 

 
   $ 560      $ 609