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CREDIT FACILITIES AND LONG-TERM DEBT (Details 2) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Principal repayments required on long-term debt    
2012 $ 3  
2013 3  
2014 4  
2015 4  
2016 317  
Thereafter 361  
Total long-term debt $ 692 $ 742