(Sales 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]
NET SALES		$ 5,086	$ 4,914	$ 4,770	$ 4,593	$ 4,440	$ 4,376	$ 4,299	$ 4,450	$ 19,363	[1]	$ 17,565	[1]	$ 18,317	[1]
Operating Segments [Member] | Industrial Packaging
Segment Reporting Information [Line Items]
NET SALES										16,326		14,900		15,260
Operating Segments [Member] | Global Cellulose Fibers
Segment Reporting Information [Line Items]
NET SALES										2,732		2,393		2,680
Corporate & Intersegment
Segment Reporting Information [Line Items]
NET SALES	[2]									$ 305		$ 272		$ 377

[1] Net sales are attributed to countries based on the location of the seller.

[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.