INFORMATION BY INDUSTRY SEGMENT, CAPITAL EXPENDITURES (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Segment, Expenditure, Addition to Long-Lived Assets	$ 330	$ 251
Operating Segments [Member]
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Segment, Expenditure, Addition to Long-Lived Assets	324	245
Operating Segments [Member] | Packaging Solutions North America
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Segment, Expenditure, Addition to Long-Lived Assets	182	193
Operating Segments [Member] | Packaging Solutions EMEA
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Segment, Expenditure, Addition to Long-Lived Assets	106	18
Operating Segments [Member] | Global Cellulose Fibers [Member]
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Segment, Expenditure, Addition to Long-Lived Assets	36	34
Segment Reporting, Reconciling Item, Corporate Nonsegment
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Segment, Expenditure, Addition to Long-Lived Assets	$ 6	$ 6