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Debt and Commitments (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Schedule of Company's long -term debt    
Total long-term debt $ 71 $ 66
Less due within one year 25 19
Total long term non current debt 46 47
Bank term debt [Member]
   
Schedule of Company's long -term debt    
Total long-term debt 11 6
Government loans [Member]
   
Schedule of Company's long -term debt    
Total long-term debt 18 14
Other Long Term Debt [Member]
   
Schedule of Company's long -term debt    
Total long-term debt $ 42 $ 46