Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenues	$ 5,389	$ 6,603
Cost of sales:
Production and delivery	3,165	3,150
Depreciation, depletion and amortization	399	489
Total cost of sales	3,564	3,639
Selling, general and administrative expenses	126	115
Mining exploration and research expenses	31	24
Environmental obligations and shutdown costs	67	16
Total costs and expenses	3,788	3,794
Operating income	1,601	2,809
Interest expense, net	(151)	(127)
Other income, net	88	31
Income before income taxes and equity in affiliated companies’ net earnings	1,538	2,713
Provision for income taxes	(499)	(824)
Equity in affiliated companies’ net earnings	10	15
Net income	1,049	1,904
Net income (loss) attributable to noncontrolling interests	386	377
Net income attributable to common stockholders	$ 663	$ 1,527
Earnings Per Share, Basic and Diluted [Abstract]
Earnings per share, basic (in dollars per share)	$ 0.46	$ 1.05
Earnings per share, diluted (in dollars per share)	$ 0.46	$ 1.04
Basic weighted-average shares of common stock outstanding	1,433	1,455
Diluted weighted-average shares of common shares outstanding	1,443	1,469
Dividends declared per share of common stock (in dollars per share)	$ 0.15	$ 0.15