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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Supplemental Cash Flow Information [Abstract]    
Other current assets $ 25 $ (25)
Other noncurrent assets 7 27
Payables and other current liabilities 2 50
Long-term liabilities and equity (13) (33)
Total $ 21 $ 19