GOODWILL AND OTHER INTANGIBLES Changes in Goodwill Balances (Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2023	Dec. 31, 2022
Goodwill [Line Items]
Beginning balance		$ 3,465
Accumulated impairment losses		(424)
Goodwill		3,043	$ 3,041
Currency translation and other (a)	[1]	2
Accumulated impairment loss additions / reductions		0
Accumulated impairment losses		(424)
Ending balance		3,467
Industrial Packaging
Goodwill [Line Items]
Beginning balance		3,413
Accumulated impairment losses		(372)
Goodwill		3,043	3,041
Currency translation and other (a)	[1]	2
Accumulated impairment loss additions / reductions		0
Accumulated impairment losses		(372)
Ending balance		3,415
Global Cellulose Fibers
Goodwill [Line Items]
Beginning balance		52
Accumulated impairment losses		(52)
Goodwill		0	$ 0
Currency translation and other (a)	[1]	0
Accumulated impairment loss additions / reductions		0
Accumulated impairment losses		(52)
Ending balance		$ 52

[1] Represents the effects of foreign currency translations