CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales (Note 3)	$ 2,973	$ 3,144	$ 6,085	$ 5,650
Costs of sales	1,789	1,583	3,436	3,013
Gross margin	1,184	1,561	2,649	2,637
Selling expenses	23	24	46	44
General and administrative expenses	102	95	194	185
Other operating costs, net (Note 13)	12	13	18	23
Operating income	1,047	1,429	2,391	2,385
Non-operating pension and other post-employment benefit costs (Note 6)	(11)	(1)	(26)	(9)
Interest income and other	1	2	0	3
Interest expense, net of capitalized interest	(65)	(78)	(137)	(157)
Loss on debt extinguishment (Note 8)	0	0	(276)	0
Earnings before income taxes	972	1,352	1,952	2,222
Income taxes (Note 14)	(184)	(324)	(393)	(513)
Net earnings	$ 788	$ 1,028	$ 1,559	$ 1,709
Earnings per share, basic (Note 4)	$ 1.06	$ 1.37	$ 2.09	$ 2.28
Earnings per share, diluted (Note 4)	$ 1.06	$ 1.37	$ 2.09	$ 2.28
Weighted average shares outstanding (in thousands) (Note 4):
Basic	744,542	750,127	746,017	749,429
Diluted	745,582	751,508	747,194	750,773