INDUSTRY SEGMENT INFORMATION Operating Profit by Industry Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	$ 322	$ 334	$ 491	$ 640
Earnings (Loss) From Continuing Operations	498	222	554	394
Income tax provision (benefit)	(293)	33	(266)	81
Equity Earnings	1	0	3	1
Earnings (loss) from continuing operations before income taxes and equity earnings	206	255	291	476
Interest expense, net	55	59	101	121
Noncontrolling Interest in Net Income (Loss) Other Noncontrolling Interests, Redeemable	(1)	0	(3)	0
Corporate expenses, net	23	8	47	16
Corporate net special items	54	0	74	0
SegmentReportingInformationBusinessSpecialItems	(5)	0	3	0
Non-operating pension expense (income)	(10)	12	(22)	27
Industrial Packaging
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	291	304	507	626
Global Cellulose Fibers
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	$ 31	$ 30	$ (16)	$ 14