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SUPPLEMENTARY INFORMATION (Other Income Statement and Cash Flow Information) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Supplementary Information [Abstract]      
Cash payments for interest $ 39 $ 37 $ 37
Cash payments (refunds) for income taxes $ (125) $ 555 $ 322