OTHER OPERATING COSTS (INCOME), NET - Various Income and Expense Items Included in Other Operating Costs (Income), Net (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Gain on disposition of nonstrategic assets (1)	$ (36)	$ (16)	$ (60)	$ (12)
Foreign exchange losses (gains), net (2)		(1)	(6)	47
Litigation expense, net		20	24	23
Gain on sale of timberlands (3)		(99)	0	0
Environmental remediation insurance recoveries		(42)	0	0
Other, net expense		10
Other, net (income)			(11)	(17)
Total other operating costs (income), net		$ (128)	$ (53)	$ 41