Discontinued Operations and Disposal Groups (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operations, net of taxes	$ 0	$ 82
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Printing Papers [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Sales		770
Cost of products sold		499
Selling and administrative expenses		59
Depreciation, amortization and cost of timber harvested		41
Distribution expenses		70
Taxes other than payroll and income taxes		8
Earnings (Loss) Before Income Taxes and Equity Earnings		93
Income tax provision (benefit)		11
Discontinued operations, net of taxes		82
Cash provided by (used in) operating activities, discontinued operations		79
Cash Provided by (Used in) Investing Activities, Discontinued Operations		$ (19)