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Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment
    December 31,  
    2012     2011  
    (in millions)  

Land

  $ 63      $ 61   

Buildings and improvements

    407        368   

Machinery, equipment, furniture and fixtures

    1,526        1,347   

Leasehold improvements

    322        292   
 

 

 

   

 

 

 

Gross property, plant and equipment

    2,318        2,068   

Accumulated depreciation and amortization

    (1,301     (1,147
 

 

 

   

 

 

 

Property, plant and equipment, net

  $ 1,017      $ 921