REVENUE RECOGNITION (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
NET SALES	$ 645	$ 662	$ 1,827	$ 1,906
Contract with Customer, Liability, Current	2		2		$ 2
Latin America Segment [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
NET SALES	231	212	612	599
North America Segment [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
NET SALES	414	450	1,215	1,307
Uncoated Papers [Member] | Latin America Segment [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
NET SALES	220	200	580	561
Uncoated Papers [Member] | North America Segment [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
NET SALES	394	429	1,166	1,244
Market Pulp [Member] | Latin America Segment [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
NET SALES	11	12	32	38
Market Pulp [Member] | North America Segment [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
NET SALES	$ 20	$ 21	$ 49	$ 63