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CREDIT FACILITIES AND LONG-TERM DEBT (Details 2) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Principal repayments required on the long-term debt    
2013 $ 3  
2014 4  
2015 4  
2016 4  
2017 12  
Thereafter 349  
Total long-term debt $ 376 $ 688