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Business Segments and Geographic Areas - Long-lived assets by country based on the location (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Segment Reporting Information [Line Items]    
Property, plant and equipment, net $ 2,945 $ 2,445
United States [Member]
   
Segment Reporting Information [Line Items]    
Property, plant and equipment, net 1,606 1,493
Denmark [Member]
   
Segment Reporting Information [Line Items]    
Property, plant and equipment, net 174 3
United Kingdom [Member]
   
Segment Reporting Information [Line Items]    
Property, plant and equipment, net 173 131
Brazil [Member]
   
Segment Reporting Information [Line Items]    
Property, plant and equipment, net 162 92
Canada [Member]
   
Segment Reporting Information [Line Items]    
Property, plant and equipment, net 131 113
South Korea [Member]
   
Segment Reporting Information [Line Items]    
Property, plant and equipment, net 112 97
Singapore [Member]
   
Segment Reporting Information [Line Items]    
Property, plant and equipment, net 93 86
Other Countries [Member]
   
Segment Reporting Information [Line Items]    
Property, plant and equipment, net $ 494 $ 430