Equity Method Investments (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Equity earnings (loss), net of taxes	$ (21)	$ (6)	$ 2
Equity method dividends received	13	204	159
Ilim Holding [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment Agreed Sales Price	484
Ilim JSC Group
Schedule of Equity Method Investments [Line Items]
Equity Method Investment Agreed Sales Price	$ 24
Reportable Subsegments [Member] | Graphic Packaging LLC [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest				20.50%
Equity earnings (loss), net of taxes			4
Equity method dividends received			$ 5
Reportable Subsegments [Member] | Ilim Holding [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest	50.00%
Equity earnings (loss), net of taxes	$ 112	296
Equity method dividends received	13	204
Impairment Charges	135	$ 533
Divestiture, Transaction Costs	36
Other comprehensive income (loss), foreign currency transaction and translation adjustment, before tax	$ 517
Reportable Subsegments [Member] | Ilim JSC Group
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest	2.39%