CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Income Statement [Abstract]
Net sales (Note 3)	$ 1,727	$ 1,763
Costs of sales	1,409	1,428
Gross margin	318	335
Selling expenses	23	23
General and administrative expenses	119	119
Gain on sale of timberlands (Note 15)	(58)	0
Other operating (income) costs, net (Note 13)	(13)	14
Operating income	247	179
Non-operating pension and other post-employment benefit costs (Note 6)	(14)	(19)
Interest income and other	4	5
Interest expense, net of capitalized interest	(66)	(66)
Earnings before income taxes	171	99
Income taxes (Note 14)	(15)	(16)
Net earnings	$ 156	$ 83
Earnings per share, basic (Note 4)	$ 0.22	$ 0.11
Earnings per share, diluted (Note 4)	$ 0.22	$ 0.11
Weighted average shares outstanding (in thousands) (Note 4):
Basic	721,290	726,143
Diluted	721,671	726,566