RESTRUCTURING CHARGES - Restructuring Roll Forward (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Restructuring Reserve [Roll Forward]
Beginning balance			$ 54	$ 0	$ 0
Liability recognized	$ 23	$ 113	121	127	129
Payments			(100)		(62)
Other adjustments			(15)		(13)
Ending balance	60		60		54
Workforce reductions [Member]
Restructuring Reserve [Roll Forward]
Beginning balance			54	0	0
Liability recognized			95		112
Payments			(89)		(59)
Other adjustments			(1)		1
Ending balance	59		59		54
Plant closings and other [Member]
Restructuring Reserve [Roll Forward]
Beginning balance			0	$ 0	0
Liability recognized			26		17
Payments			(11)		(3)
Other adjustments			(14)		(14)
Ending balance	$ 1		$ 1		$ 0