INDUSTRY SEGMENT INFORMATION Operating Profit by Industry Segment (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	$ 655	$ 738	$ 1,706	$ 1,947
Earnings (loss) from continuing operations before income taxes and equity earnings	452	553	1,204	1,399
Interest expense, net	(123)	(133)	(378)	(401)
Noncontrolling interests/equity earnings adjustment	2	(2)	4	(7)
Corporate expenses, net	21	20	45	59
Corporate special items, net	48	9	48	30
Non-operating pension expense	9	25	27	65
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest expense, net	123	133	378	401
Industrial Packaging
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	510	472	1,421	1,446
Global Cellulose Fibers
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	(3)	83	27	160
Printing Papers
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	$ 148	$ 183	$ 258	$ 341

Income From Equity Method Investment And Income Attributable To Noncontrolling Interests

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