Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenues	$ 5,824	$ 5,003	$ 16,950	$ 17,022
Cost of sales:
Production and delivery	3,548	3,366	10,260	9,519
Depreciation, depletion and amortization (DD&A)	533	508	1,479	1,504
Metals inventory adjustments	5	25	7	43
Total cost of sales	4,086	3,899	11,746	11,066
Selling, general and administrative expenses	118	98	359	313
Mining exploration and research expenses	30	38	103	87
Environmental obligations and shutdown costs	98	6	239	51
Net gain on sales of assets	0	0	0	(2)
Total costs and expenses	4,332	4,041	12,447	11,515
Operating income	1,492	962	4,503	5,507
Interest expense, net	(96)	(140)	(418)	(423)
Net gain on early extinguishment of debt	5	20	10	28
Other income, net	71	25	183	67
Income before income taxes and equity in affiliated companies’ net earnings	1,472	867	4,278	5,179
Provision for income taxes	(508)	(315)	(1,546)	(1,710)
Equity in affiliated companies’ net earnings	0	8	12	33
Net income	964	560	2,744	3,502
Net income (loss) attributable to noncontrolling interests	510	156	1,284	731
Net income attributable to common stockholders	$ 454	$ 404	$ 1,460	$ 2,771
Net income per share attributable to common stockholders:
Earnings per share, basic (in dollars per share)	$ 0.31	$ 0.28	$ 1.01	$ 1.91
Earnings per share, diluted (in dollars per share)	$ 0.31	$ 0.28	$ 1.01	$ 1.90
Weighted-average shares of common stock outstanding:
Basic weighted-average shares of common stock outstanding	1,435	1,431	1,434	1,444
Diluted weighted-average shares of common shares outstanding	1,443	1,439	1,443	1,455
Dividends declared per share of common stock (in dollars per share)	$ 0.15	$ 0.15	$ 0.45	$ 0.45