GOODWILL AND OTHER INTANGIBLES Changes in Goodwill Balances (Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2018	Dec. 31, 2017
Goodwill [Line Items]
Beginning balance		$ 5,584
Accumulated impairment losses (a)	[1]	(2,173)
Total		3,378	$ 3,411
Reclassifications and other (b)		(33)
Additions/reductions		0
Accumulated impairment losses (a)	[1]	(2,173)
Ending balance		5,551
Industrial Packaging
Goodwill [Line Items]
Beginning balance		3,382
Accumulated impairment losses (a)	[1]	(296)
Total		3,084	3,086
Reclassifications and other (b)		(2)
Additions/reductions		0
Accumulated impairment losses (a)	[1]	(296)
Ending balance		3,380
Global Cellulose Fibers
Goodwill [Line Items]
Beginning balance		52
Accumulated impairment losses (a)	[1]	0
Total		52	52
Reclassifications and other (b)		0
Additions/reductions		0
Accumulated impairment losses (a)	[1]	0
Ending balance		52
Printing Papers
Goodwill [Line Items]
Beginning balance		2,150
Accumulated impairment losses (a)	[1]	(1,877)
Total		242	$ 273
Reclassifications and other (b)		(31)
Additions/reductions		0
Accumulated impairment losses (a)	[1]	(1,877)
Ending balance		$ 2,119

[1] Represents accumulated goodwill impairment charges since the adoption of ASC 350, "Intangibles-Goodwill and Other" in 2002.