INDUSTRY SEGMENT INFORMATION Operating Profit by Industry Segment (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	$ 428	$ 629	$ 940	$ 1,229
Earnings (loss) before income taxes and equity earnings	261	334	245	752
Interest expense, net	116	122	233	255
Noncontrolling interests adjustment	0	5	0	2
Corporate expenses, net	(3)	3	29	24
Corporate net special items	54	0	87	0
Business net special items	14	157	366	178
Non-operating pension expense (income)	(14)	8	(20)	18
Corporate and Intersegment Sales
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest expense, net	116	122	233	255
Industrial Packaging
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	449	515	919	936
Global Cellulose Fibers
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	(10)	0	(64)	35
Printing Papers
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	$ (11)	$ 114	$ 85	$ 258

Income From Equity Method Investment And Income Attributable To Noncontrolling Interests

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The net amount of operating interest income (expense).

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