FINANCIAL INFORMATION BY BUSINESS SEGMENT AND GEOGRAPHIC AREA (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Revenue from Contracts with Customers, including Intersegment Sales	$ 807	$ 944	$ 1,634	$ 1,857
NET SALES	794	933	1,615	1,838
Cost of products sold and other	581	656	1,217	1,350
Maintenance outages	66	29	93	54
Economic downtime	0	7	3	11
Selling and administrative expenses, excluding Corporate Special Items	72	82	145	155
Depreciation, amortization and cost of timber harvested	45	37	85	76
Other Nonrecurring (Income) Expense	0	0	2	2
Business Segment Operating Profit (Loss)	30	122	74	194
Income before income taxes	20	113	53	173
Interest (income) expense, net	10	9	19	18
TOTAL ASSETS	2,668		2,668		$ 2,604
Payments to Acquire Productive Assets			114	113
Europe Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	181	205	371	412
Latin America Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	194	235	387	443
North America Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	419	493	857	983
Operating Segments | Europe Segment [Member]
Segment Reporting Information [Line Items]
Revenue from Contracts with Customers, including Intersegment Sales	181	206	371	413
NET SALES	181	205	371	412
Cost of products sold and other	168	169	347	362
Maintenance outages	28	0	40	0
Economic downtime	0	3	0	3
Selling and administrative expenses, excluding Corporate Special Items	15	17	30	28
Depreciation, amortization and cost of timber harvested	8	8	16	16
Other Nonrecurring (Income) Expense	0	0	0	1
Business Segment Operating Profit (Loss)	(38)	8	(62)	4
TOTAL ASSETS	392		392		324
Payments to Acquire Productive Assets			22	10
Operating Segments | Latin America Segment [Member]
Segment Reporting Information [Line Items]
Revenue from Contracts with Customers, including Intersegment Sales	207	245	406	461
NET SALES	194	235	387	443
Cost of products sold and other	125	150	253	295
Maintenance outages	20	7	21	18
Economic downtime	0	0	0	0
Selling and administrative expenses, excluding Corporate Special Items	23	23	44	44
Depreciation, amortization and cost of timber harvested	23	17	41	35
Other Nonrecurring (Income) Expense	(1)	(1)	0	0
Business Segment Operating Profit (Loss)	2	37	28	51
TOTAL ASSETS	1,163		1,163		1,065
Payments to Acquire Productive Assets			62	77
Operating Segments | North America Segment [Member]
Segment Reporting Information [Line Items]
Revenue from Contracts with Customers, including Intersegment Sales	419	493	857	983
NET SALES	419	493	857	983
Cost of products sold and other	288	337	617	693
Maintenance outages	18	22	32	36
Economic downtime	0	4	3	8
Selling and administrative expenses, excluding Corporate Special Items	34	42	71	83
Depreciation, amortization and cost of timber harvested	14	12	28	25
Other Nonrecurring (Income) Expense	1	1	2	1
Business Segment Operating Profit (Loss)	66	77	108	139
TOTAL ASSETS	861		861		904
Payments to Acquire Productive Assets			30	25
Segment Reconciling Items
Segment Reporting Information [Line Items]
Other special items, net (a)	0	0	2	2
Less:
Segment Reporting Information [Line Items]
NET SALES	(13)	(11)	(19)	(19)
Less: | Europe Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	0	(1)	0	(1)
Less: | Latin America Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	(13)	(10)	(19)	(18)
Less: | North America Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	0	0	0	0
Segment Reporting, Reconciling Item, Corporate Nonsegment
Segment Reporting Information [Line Items]
Other Nonrecurring (Income) Expense	0	$ 0	0	1
TOTAL ASSETS	$ 252		252		$ 311
Payments to Acquire Productive Assets			$ 0	$ 1