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Commitments and Contingencies (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Commitments and Contingencies (Additional Textual) [Abstract]      
Total rental expenses $ 18 $ 19 $ 19
Capital leases 96 63  
Outstanding purchase commitments 146    
Purchase obligation due 47    
Stay period of the litigation 90 days    
Second priority secured notes [Member]
     
Commitments and Contingencies (Textual) [Abstract]      
Investment In unrestricted subsidiary intended 135    
Senior unsecured PIK term loans [Member]
     
Commitments and Contingencies (Textual) [Abstract]      
Guarantee issued, unrestricted subsidiary $ 135