Revenue Recognition Disaggregaton of Revenue Table (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Net sales	[1],[2]	$ 18,916	$ 21,161	$ 19,363
Corporate & Intersegment
Disaggregation of Revenue [Line Items]
Net sales	[3]	430	483	305
Consolidation, Eliminations
Disaggregation of Revenue [Line Items]
Net sales	[2]	430	483	305
Corporate and other
Disaggregation of Revenue [Line Items]
Net sales		(95)	(132)	(126)
North American Industrial Packaging
Disaggregation of Revenue [Line Items]
Net sales		14,293	16,011	14,944
EMEA Industrial Packaging
Disaggregation of Revenue [Line Items]
Net sales		1,398	1,572	1,508
Global Cellulose Fibers
Disaggregation of Revenue [Line Items]
Net sales		2,890	3,227	2,732
Industrial Packaging | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Net sales		15,596	17,451	16,326
Industrial Packaging | Reportable Geographical Components [Member]
Disaggregation of Revenue [Line Items]
Net sales	[2]	15,596	17,451	16,326
Industrial Packaging | Corporate and other
Disaggregation of Revenue [Line Items]
Net sales		(95)	(132)	(126)
Industrial Packaging | North American Industrial Packaging
Disaggregation of Revenue [Line Items]
Net sales		14,293	16,011	14,944
Industrial Packaging | EMEA Industrial Packaging
Disaggregation of Revenue [Line Items]
Net sales		1,398	1,572	1,508
Global Cellulose Fibers | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Net sales		2,890	3,227	2,732
Global Cellulose Fibers | Reportable Geographical Components [Member]
Disaggregation of Revenue [Line Items]
Net sales	[2]	2,890	3,227	2,732
Global Cellulose Fibers | Global Cellulose Fibers
Disaggregation of Revenue [Line Items]
Net sales		2,890	3,227	2,732
United States
Disaggregation of Revenue [Line Items]
Net sales	[1],[2],[4]	16,340	18,482	16,769
United States | Consolidation, Eliminations
Disaggregation of Revenue [Line Items]
Net sales	[2]	430	480	253
United States | Industrial Packaging
Disaggregation of Revenue [Line Items]
Net sales	[2]	13,340	14,970	14,006
United States | Global Cellulose Fibers
Disaggregation of Revenue [Line Items]
Net sales	[2]	2,570	3,032	2,510
EMEA
Disaggregation of Revenue [Line Items]
Net sales	[1],[2]	1,494	1,693	1,611
EMEA | Consolidation, Eliminations
Disaggregation of Revenue [Line Items]
Net sales	[2]	0	0	(4)
EMEA | Industrial Packaging
Disaggregation of Revenue [Line Items]
Net sales	[2]	1,398	1,572	1,506
EMEA | Global Cellulose Fibers
Disaggregation of Revenue [Line Items]
Net sales	[2]	96	121	109
Pacific Rim and Asia
Disaggregation of Revenue [Line Items]
Net sales	[2]	261	123	207
Pacific Rim and Asia | Consolidation, Eliminations
Disaggregation of Revenue [Line Items]
Net sales	[2]	0	3	35
Pacific Rim and Asia | Industrial Packaging
Disaggregation of Revenue [Line Items]
Net sales	[2]	37	46	59
Pacific Rim and Asia | Global Cellulose Fibers
Disaggregation of Revenue [Line Items]
Net sales	[2]	224	74	113
Americas, other than U.S.
Disaggregation of Revenue [Line Items]
Net sales	[1],[2]	821	863	776
Americas, other than U.S. | Consolidation, Eliminations
Disaggregation of Revenue [Line Items]
Net sales	[2]	0	0	21
Americas, other than U.S. | Industrial Packaging
Disaggregation of Revenue [Line Items]
Net sales	[2]	821	863	755
Americas, other than U.S. | Global Cellulose Fibers
Disaggregation of Revenue [Line Items]
Net sales	[2]	$ 0	$ 0	$ 0

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

[2] Net sales are attributed to countries based on the location of the reportable segment making the sale.

[3] Includes sales of $44 million in 2021 and operating profit (losses) of $9 million in 2021, from previously divested businesses. There were no sales or operating profit (losses) from previously divested businesses in 2022 and 2023

[4] Export sales to unaffiliated customers were $2.7 billion in 2023, $3.2 billion in 2022 and $2.6 billion in 2021.