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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]      
Current assets $ (35) $ 5 $ (12)
Other assets 37 75 45
Current liabilities (98) 22 (88)
Increase Decrease In Other Noncurrent Liabilities And Equity (29) (72) 52
Other items, net (125) 30 (3)
Interest Paid [Abstract]      
Interest, net of amounts capitalized 280 265 184
Income Taxes Paid, Net [Abstract]      
Income taxes 120 124 152
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]      
Outstanding trade payables related to capital expenditures 34 10 19
Non Cash Loss From Equity Method Investments $ (15) $ (15) $ (13)