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ACCOUNTS RECEIVABLE AND OTHER (Details) - USD ($)
$ in Millions
Sep. 30, 2015
Dec. 31, 2014
ACCOUNTS RECEIVABLE AND OTHER    
Trade accounts receivable, net of allowance of nil $ 27 $ 30
Accounts receivable from affiliates 1 1
Other 3 4
Accounts receivable and other 31 35
Trade accounts receivable, allowance $ 0 $ 0