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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Supplemental Cash Flow Information [Abstract]    
Other current assets $ (3) $ (13)
Other noncurrent assets 7 14
Payables and other current liabilities (30) 40
Long-term liabilities and equity 0 (30)
Total $ (26) $ 11