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RESTRUCTURING CHARGES - Restructuring Roll Forward (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 Reserve [Roll Forward]          
Beginning balance     $ 114 $ 54 $ 54
Liability recognized $ 22 $ 23 75 121 211
Payments     (103)   (129)
Other adjustments     (15)   (22)
Ending balance 71   71   114
Workforce reductions [Member]          
Restructuring Reserve [Roll Forward]          
Beginning balance     113 54 54
Liability recognized     35   177
Payments     (78)   (116)
Other adjustments     (3)   (2)
Ending balance 67   67   113
Plant closings and other [Member]          
Restructuring Reserve [Roll Forward]          
Beginning balance     1 $ 0 0
Liability recognized     40   34
Payments     (25)   (13)
Other adjustments     (12)   (20)
Ending balance $ 4   $ 4   $ 1