CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales (Note 3)	$ 10,184	$ 10,201	$ 7,532
Costs of sales	6,564	6,103	5,447
Gross margin	3,620	4,098	2,085
Selling expenses	93	95	83
General and administrative expenses	398	396	347
Product remediation recoveries (Note 18)	0	(37)	(8)
Gain on sale of timberlands (Note 4)	0	(32)	(182)
Other operating costs, net (Note 19)	49	33	135
Operating income	3,080	3,643	1,710
Non-operating pension and other post-employment benefit costs (Note 9)	(254)	(19)	(290)
Interest income and other	25	5	5
Interest expense, net of capitalized interest	(270)	(313)	(351)
Loss on debt extinguishment (Note 12)	(276)	0	(92)
Earnings before income taxes	2,305	3,316	982
Income taxes (Note 20)	(425)	(709)	(185)
Net earnings	$ 1,880	$ 2,607	$ 797
Earnings per share (Note 5):
Basic	$ 2.53	$ 3.48	$ 1.07
Diluted	$ 2.53	$ 3.47	$ 1.07
Weighted average shares outstanding (in thousands) (Note 5):
Basic	741,904	749,496	746,931
Diluted	742,953	750,983	747,899