Equity Method Investments (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Equity earnings (loss), net of taxes	$ (6)	$ 2	$ 29
Equity method dividends received	204	159	162
Ilim Holding [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment Agreed Sales Price	484
Other than Temporary Impairment Losses, Investments	533
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	40
Equity method dividends received		5	20
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	$ 296	311	48
Equity method dividends received	204	154	141
Foreign currency transaction gain (loss), net of tax			(50)
Equity method investments	133	557
Equity method investment, difference between carrying amount and underlying equity	403	121
Purchases from related party		$ 125	$ 174
Other comprehensive income (loss), foreign currency transaction and translation adjustment, before tax	$ 375
Reportable Subsegments [Member] | Ilim JSC Group
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest	2.39%