GOODWILL AND OTHER INTANGIBLES Changes in Goodwill Balances (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Beginning balance		$ 5,547
Accumulated impairment losses (a)	[1]	(2,173)
Total		3,393	$ 3,374
Currency translation and other (b)	[2]	(2)
Additions/reductions		21
Accumulated impairment losses (a)	[1]	(2,173)
Ending balance		5,566
Industrial Packaging
Goodwill [Line Items]
Beginning balance		3,379
Accumulated impairment losses (a)	[1]	(296)
Total		3,104	3,083
Currency translation and other (b)	[2]	0
Additions/reductions	[3]	21
Accumulated impairment losses (a)	[1]	(296)
Ending balance		3,400
Global Cellulose Fibers
Goodwill [Line Items]
Beginning balance		52
Accumulated impairment losses (a)	[1]	0
Total		52	52
Currency translation and other (b)	[2]	0
Additions/reductions		0
Accumulated impairment losses (a)	[1]	0
Ending balance		52
Printing Papers
Goodwill [Line Items]
Beginning balance		2,116
Accumulated impairment losses (a)	[1]	(1,877)
Total		237	$ 239
Currency translation and other (b)	[2]	(2)
Additions/reductions		0
Accumulated impairment losses (a)	[1]	(1,877)
Ending balance		$ 2,114

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

[2] Represents the effects of foreign currency translations and reclassifications.

[3] Reflects the provisional goodwill for the acquisitions of two Industrial Packaging box plants in Spain.