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RESTRUCTURING CHARGES - Summary of Restructuring Charges by Type (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Restructuring and Related Activities [Abstract]          
Workforce reductions $ 10 $ 18 $ 35 $ 95  
Plant closings and other 12 5 40 26  
Total $ 22 $ 23 $ 75 $ 121 $ 211