OTHER OPERATING (INCOME) COSTS, NET - Other Operating (Income) Costs, Net (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Component of Operating Income [Abstract]
Environmental remediation charges	$ 1	$ 2	$ 8	$ 8
Gain on lumber mill sale	(29)	0	(29)	0
Insurance recoveries	(34)	(1)	(39)	(4)
Litigation expense, net	8	13	18	34
Product remediation recovery	0	0	0	(25)
Research and development expenses	2	1	4	5
Restructuring, impairments and other charges	0	10	0	10
Other, net	3	3	13	13
Total other operating (income) costs, net	$ (49)	$ 28	$ (25)	$ 41

Amount, before recovery, of expense for known and estimated future costs arising from requirement to perform environmental remediation.

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