Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenues	$ 6,603	$ 4,850
Cost of sales:
Production and delivery	3,150	2,787
Depreciation, depletion and amortization	489	419
Total cost of sales	3,639	3,206
Selling, general and administrative expenses	115	100
Mining exploration and research expenses	24	7
Environmental obligations and shutdown costs	16	5
Total costs and expenses	3,794	3,318
Operating income	2,809	1,532
Interest expense, net	(127)	(145)
Other income, net	31	11
Income before income taxes and equity in affiliated companies’ net earnings (losses)	2,713	1,398
Provision for income taxes	(824)	(443)
Equity in affiliated companies’ net earnings (losses)	15	(2)
Net income	1,904	953
Net income attributable to noncontrolling interests	(377)	(235)
Net income attributable to common stockholders	$ 1,527	$ 718
Earnings Per Share, Basic and Diluted [Abstract]
Earnings per share, basic (in dollars per share)	$ 1.05	$ 0.49
Earnings per share, diluted (in dollars per share)	$ 1.04	$ 0.48
Basic weighted-average shares of common stock outstanding	1,455	1,462
Diluted weighted-average shares of common shares outstanding	1,469	1,477
Dividends declared per share of common stock (in dollars per share)	$ 0.15	$ 0.075