Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 5)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 5) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Buildings and equipment | Minimum
     
Property, Plant and Equipment      
Estimated useful lives 10 years    
Buildings and equipment | Maximum
     
Property, Plant and Equipment      
Estimated useful lives 33 years    
Plant and equipment
     
Property, Plant and Equipment      
Interest expense capitalized as part of plant and equipment $ 4 $ 2 $ 1
Plant and equipment | Minimum
     
Property, Plant and Equipment      
Estimated useful lives 3 years    
Plant and equipment | Maximum
     
Property, Plant and Equipment      
Estimated useful lives 25 years    
Furniture, fixtures and leasehold improvements | Minimum
     
Property, Plant and Equipment      
Estimated useful lives 5 years    
Furniture, fixtures and leasehold improvements | Maximum
     
Property, Plant and Equipment      
Estimated useful lives 20 years