(Sales By Industry Segment) (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
		Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020
Segment Reporting Information [Line Items]
NET SALES		$ 5,133	$ 5,402	$ 5,389	$ 5,237	$ 5,086	$ 4,914	$ 4,770	$ 4,593	$ 21,161	[1]	$ 19,363	[1]	$ 17,565	[1]
Operating Segments [Member] | Industrial Packaging
Segment Reporting Information [Line Items]
NET SALES										17,451		16,326		14,900
Operating Segments [Member] | Global Cellulose Fibers
Segment Reporting Information [Line Items]
NET SALES										3,227		2,732		2,393
Corporate & Intersegment
Segment Reporting Information [Line Items]
NET SALES	[2]									$ 483		$ 305		$ 272

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

[2] Includes sales of $44 million in 2021 and $56 million in 2020 and operating profit (losses) of $9 million in 2021 and $1 million in 2020, from previously divested businesses. There were no sales or operating profit (losses) from previously divested businesses in 2022.