GOODWILL AND OTHER INTANGIBLES Changes in Goodwill Balances (Details) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2019	Dec. 31, 2018
Goodwill [Line Items]
Beginning balance		$ 5,547
Accumulated impairment losses		(2,173)
Total		3,412	$ 3,374
Currency translation and other (a)	[1]	(16)
Goodwill additions/reductions		(58)
Accumulated impairment loss additions / reductions		112
Accumulated impairment losses		(2,061)
Ending balance		5,473
Industrial Packaging
Goodwill [Line Items]
Beginning balance		3,379
Accumulated impairment losses		(296)
Total		3,135	3,083
Currency translation and other (a)	[1]	(2)
Goodwill additions/reductions	[2]	54
Accumulated impairment loss additions / reductions		0
Accumulated impairment losses		(296)
Ending balance		3,431
Global Cellulose Fibers
Goodwill [Line Items]
Beginning balance		52
Accumulated impairment losses		0
Total		52	52
Currency translation and other (a)	[1]	0
Goodwill additions/reductions		0
Accumulated impairment loss additions / reductions		0
Accumulated impairment losses		0
Ending balance		52
Printing Papers
Goodwill [Line Items]
Beginning balance		2,116
Accumulated impairment losses		(1,877)
Total		225	$ 239
Currency translation and other (a)	[1]	(14)
Goodwill additions/reductions	[3]	(112)
Accumulated impairment loss additions / reductions	[3]	112
Accumulated impairment losses		(1,765)
Ending balance		$ 1,990

[1] Represents the effects of foreign currency translations

[2] Reflects the provisional goodwill for the acquisitions of Industrial Packaging box plants in EMEA.

[3] Reflects the reclassification of India goodwill and accumulated impairment losses to held for sale.