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CREDIT FACILITIES AND LONG-TERM DEBT (Details 2) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Principal repayments required by the Partnership on the long-term debt    
2014 $ 3  
2015 79  
2016 4  
2017 348  
2018 500  
Thereafter 599  
Total long-term debt $ 1,533 $ 1,578