FINANCIAL INFORMATION BY BUSINESS SEGMENT AND GEOGRAPHIC AREA (Details) $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Segment Reporting Information [Line Items]
Revenue from Contracts with Customers, including Intersegment Sales	$ 767	$ 827
NET SALES	755	821
Cost of products sold and other	639	636
Maintenance outages	17	27
Economic downtime	0	3
Selling and administrative expenses, excluding Corporate Special Items	73	73
Depreciation, amortization and cost of timber harvested	41	40
Other Nonrecurring (Income) Expense	0	2
Operating Income (Loss)	(15)	44
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(6)	33
Interest expense, net	9	9
Assets	2,834	2,763	$ 2,763
Payments to Acquire Productive Assets	49	48
Foreign exchange gain on intercompany note	$ (19)	0
Number of Reportable Segments	3
Europe Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	$ 188	190
Latin America Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	177	193
North America Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	390	438
Operating Segments | Europe Segment [Member]
Segment Reporting Information [Line Items]
Revenue from Contracts with Customers, including Intersegment Sales	190	190
NET SALES	188	190
Cost of products sold and other	211	179
Maintenance outages	0	12
Economic downtime	0	0
Selling and administrative expenses, excluding Corporate Special Items	13	15
Depreciation, amortization and cost of timber harvested	8	8
Other Nonrecurring (Income) Expense	0	0
Operating Income (Loss)	(44)	(24)
Assets	497	500
Payments to Acquire Productive Assets	5	10
Operating Segments | Latin America Segment [Member]
Segment Reporting Information [Line Items]
Revenue from Contracts with Customers, including Intersegment Sales	187	199
NET SALES	177	193
Cost of products sold and other	125	128
Maintenance outages	3	1
Economic downtime	0	0
Selling and administrative expenses, excluding Corporate Special Items	24	21
Depreciation, amortization and cost of timber harvested	21	18
Other Nonrecurring (Income) Expense	0	1
Operating Income (Loss)	4	26
Assets	1,259	1,231
Payments to Acquire Productive Assets	21	27
Operating Segments | North America Segment [Member]
Segment Reporting Information [Line Items]
Revenue from Contracts with Customers, including Intersegment Sales	390	438
NET SALES	390	438
Cost of products sold and other	303	329
Maintenance outages	14	14
Economic downtime	0	3
Selling and administrative expenses, excluding Corporate Special Items	36	37
Depreciation, amortization and cost of timber harvested	12	14
Other Nonrecurring (Income) Expense	0	1
Operating Income (Loss)	25	42
Assets	945	884
Payments to Acquire Productive Assets	23	11
Segment Reconciling Items
Segment Reporting Information [Line Items]
Interest expense, net	9	9
Other Operating Income (Expense), Net	1	2
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
NET SALES	(12)	(6)
Intersegment Eliminations [Member] | Europe Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	(2)	0
Intersegment Eliminations [Member] | Latin America Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	(10)	(6)
Intersegment Eliminations [Member] | North America Segment [Member]
Segment Reporting Information [Line Items]
NET SALES	0	0
Segment Reporting, Reconciling Item, Corporate Nonsegment
Segment Reporting Information [Line Items]
Assets	$ 133	$ 148