(Operating Profit By Industry Segment) (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
		Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Earnings (loss) from continuing operations before income taxes and equity earnings		$ 44	$ 397	$ 252	$ 306	$ 24	$ 202	$ 241	$ (138)	$ 999	$ 329	$ 921
Interest expense, net										337	446	499
Noncontrolling interests adjustment (b)	[1]									(5)	0	0
Corporate expenses, net (a)	[2]									134	62	129
Corporate net special items (a)	[2]									352	262	263
Business net special items										18	481	151
Non-operating pension (income) expense		$ (47)	$ (50)	$ (51)	$ (52)	$ (10)	$ (11)	$ (14)	$ (6)	(200)	(41)	36
Operating Segments [Member]
Segment Reporting Information [Line Items]
Business Segment Operating Profit										1,635	1,539	1,999
Operating Segments [Member] | Industrial Packaging
Segment Reporting Information [Line Items]
Business Segment Operating Profit										1,638	1,757	2,011
Business net special items										15	476	83
Operating Segments [Member] | Global Cellulose Fibers
Segment Reporting Information [Line Items]
Business Segment Operating Profit										(3)	(218)	(12)
Business net special items										$ 3	$ 5	$ 68

[1] Operating profits for industry segments include each segment’s percentage share of the profits of subsidiaries included in that segment that are less than wholly-owned. The pre-tax noncontrolling interests for these subsidiaries is added here to present consolidated earnings from continuing operations before income taxes and equity earnings.

[2] Includes sales of $44 million in 2021, $56 million in 2020 and $161 million in 2019, operating profit (losses) of $9 million in 2021, $1 million in 2020 and $25 million in 2019, and corporate net special items expense of $0 million in 2021, $0 million in 2020 and $159 million in 2019, from previously divested businesses.