(Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Postretirement benefit accruals		$ 67	$ 68
Pension obligations		61	18
Tax credits		182	175
Net operating and capital loss carryforwards		699	568
Compensation reserves		146	151
Lease obligations		116	108
Environmental reserves		114	119
Other		319	271
Gross deferred income tax assets		1,704	1,478
Less: valuation allowance (a)	[1]	(848)	(677)
Net deferred income tax asset		856	801
Intangibles		(141)	(147)
Investments		(3)	(2)
Right of use assets		(116)	(108)
Plants, properties and equipment		(1,650)	(1,778)
Forestlands, related installment sales, and investment in subsidiary		(485)	(485)
Gross deferred income tax liabilities		(2,389)	(2,520)
Net deferred income tax liability		$ (1,533)	$ (1,719)

[1] The net change in the total valuation allowance for the years ended December 31, 2023 and 2022 was an increase of $171 million and a decrease of $(31) million, respectively.