CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales (Note 3)	$ 1,881	$ 3,112
Costs of sales	1,512	1,647
Gross margin	369	1,465
Selling expenses	22	23
General and administrative expenses	101	92
Other operating costs, net (Note 13)	10	6
Operating income	236	1,344
Non-operating pension and other post-employment benefit costs (Note 6)	(9)	(15)
Interest income and other	12	(1)
Interest expense, net of capitalized interest	(66)	(72)
Loss on debt extinguishment (Note 8)	0	(276)
Earnings before income taxes	173	980
Income taxes (Note 14)	(22)	(209)
Net earnings	$ 151	$ 771
Earnings per share, basic (Note 4)	$ 0.21	$ 1.03
Earnings per share, diluted (Note 4)	$ 0.21	$ 1.03
Weighted average shares outstanding (in thousands) (Note 4):
Basic	733,163	747,507
Diluted	733,546	748,823