OTHER OPERATING COSTS, NET Items Included in Other Operating Costs, Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Gain on disposition of nonstrategic assets	$ (1)	$ (2)	$ (3)	$ (9)
Foreign exchange losses, net	(2)	0	0	3
Litigation expense, net	8	3	13	6
Other, net(1)	12	11	35	14
Total other operating costs, net	$ 17	$ 12	$ 45	$ 14