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CHANGE IN OPERATING WORKING CAPITAL (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
CHANGE IN OPERATING WORKING CAPITAL    
Change in accounts receivable and other $ 3 $ 5
Change in accounts payable and accrued liabilities 4 (4)
Change in accounts payable to affiliates 1 (1)
Change in accrued interest 8 8
Change in operating working capital $ 16 $ 8 [1]
[1] (a) Recast as discussed in Note 2.