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CREDIT FACILITIES, SHORT-TERM LOAN FACILITY AND LONG-TERM DEBT (Details 2) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Principal repayments required on debt    
2015 $ 174  
2016 14  
2017 222  
2018 520  
2019 35  
2020 100  
Thereafter 849  
Total credit facilities and long-term debt $ 1,914 $ 1,695