Divestitures and Impairments of Businesses (Details) - USD ($) $ in Millions	3 Months Ended																12 Months Ended
	Dec. 31, 2022	[1]	Sep. 30, 2022	[1]	Jun. 30, 2022	[1]	Mar. 31, 2022	[1]	Dec. 31, 2021		Sep. 30, 2021		Jun. 30, 2021		Mar. 31, 2021		Dec. 31, 2022	[1]	Dec. 31, 2021		Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operations, net of taxes	$ (489)		$ 64		$ 95		$ 93		$ 58	[2]	$ 527	[2]	$ 225	[2]	$ 131	[2]	$ (237)		$ 941	[2]	$ 300
Printing Papers [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net (gains) losses on sales of fixed assets									$ 0		$ (65)		$ 0		$ 0
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff [Member] | Printing Papers [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Sales																			2,417		3,015
Cost of products sold																			1,508		2,036
Selling and administrative expenses																			224		165
Depreciation, amortization and cost of timber harvested																			113		196
Distribution expenses																			229		264
Taxes other than payroll and income taxes																			24		35
Net (gains) losses on sales of fixed assets																			(86)		0
Net (gains) losses on sales and impairments of businesses																			(351)		0
Disposal Group, Including Discontinued Operation, Interest Income																			19		2
Earnings (Loss) Before Income Taxes and Equity Earnings																			775		321
Income tax provision (benefit)																			145		69
Discontinued operations, net of taxes																			630		252
Cash Provided by (Used For) Operating Activities																			290		463
Cash Provided by (Used For) Investment Activities																			$ 757		$ (111)

[1] (b) Includes equity earnings from our Ilim equity method investment for the full year. Also includes a charge of $533 million for the three months ended December 31, 2022 related to the impairment of our equity method investment in connection with the announced plan to sell our interest in the Ilim joint venture.

[2] (e) Includes the operating earnings of the Printing Papers business and equity earnings from our Ilim equity method investment for the full year. Also includes the following charges (gains):
2021In millionsQ1Q2Q3Q4Printing Papers spin-off expenses$20 $20 $47 $5 Gain on sale of Kwidzyn, Poland mill— — (350)6 Gain on sale of La Mirada, CA distribution center— — (65)— Foreign value-added tax credit— (47)10 — Foreign and state taxes related to spin-off of Printing Papers business— — 27 (3)Non-operating pension expense(1)(1)— — Total$19 $(28)$(331)$8