Consolidated Statement of Equity (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Accumulated Deficit	AOCI Attributable to Parent	Common Stock Held in Treasury	Total Stockholder's Equity	Noncontrolling Interests
Balance (in shares) at Dec. 31, 2023		1,619.0
Beginning balance (in shares) at Dec. 31, 2023						184.0
Balance at Dec. 31, 2023	$ 27,310	$ 162	$ 24,637	$ (2,059)	$ (274)	$ (5,773)	$ 16,693	$ 10,617
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercised and issued stock-based awards (in shares)		5.0				1.0
Exercised and issued stock-based awards	26		54			$ (28)	26
Stock-based compensation, including the tender of shares (in shares)						1.0
Stock-based compensation, including the tender of shares	41		77			$ (34)	43	(2)
Treasury stock purchases (in shares)						1.0
Treasury stock purchases	(59)					$ (59)	(59)
Acquisition of additional ownership interest in Cerro Verde	(215)		(125)				(125)	(90)
Dividends	(1,918)		(649)				(649)	(1,269)
Change in consolidated subsidiary ownership interests	(2)		(3)				(3)	(1)
Net loss attributable to common stockholders	1,615			1,615			1,615
Net income (loss) attributable to noncontrolling interests	2,063							2,063
Other comprehensive income	1				1		1	0
Balance (in shares) at Sep. 30, 2024		1,624.0
Ending balance (in shares) at Sep. 30, 2024						187.0
Balance at Sep. 30, 2024	28,866	$ 162	23,997	(444)	(273)	$ (5,894)	17,548	11,318
Balance (in shares) at Jun. 30, 2024		1,624.0
Beginning balance (in shares) at Jun. 30, 2024						186.0
Balance at Jun. 30, 2024	28,686	$ 162	24,321	(970)	(274)	$ (5,835)	17,404	11,282
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercised and issued stock-based awards	1		1				1
Stock-based compensation, including the tender of shares	14		13				13	1
Treasury stock purchases (in shares)						1.0
Treasury stock purchases	(59)					$ (59)	(59)
Acquisition of additional ownership interest in Cerro Verde	(215)		(125)				(125)	(90)
Dividends	(800)		(216)				(216)	(584)
Change in consolidated subsidiary ownership interests	(2)		(3)				(3)	(1)
Net loss attributable to common stockholders	526			526			526
Net income (loss) attributable to noncontrolling interests	710							710
Other comprehensive income	1				1		1	0
Balance (in shares) at Sep. 30, 2024		1,624.0
Ending balance (in shares) at Sep. 30, 2024						187.0
Balance at Sep. 30, 2024	28,866	$ 162	23,997	(444)	(273)	$ (5,894)	17,548	11,318
Balance (in shares) at Dec. 31, 2024		1,624.0
Beginning balance (in shares) at Dec. 31, 2024						187.0
Balance at Dec. 31, 2024	28,778	$ 162	23,797	(170)	(314)	$ (5,894)	17,581	11,197
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercised and issued stock-based awards (in shares)		2.0
Exercised and issued stock-based awards	5	$ 1	4				5
Stock-based compensation, including the tender of shares (in shares)						1.0
Stock-based compensation, including the tender of shares	$ 50		75			$ (23)	52	(2)
Treasury stock purchases (in shares)	2.9					3.0
Treasury stock purchases	$ (107)					$ (107)	(107)
Dividends	(1,922)		(216)	(432)			(648)	(1,274)
Contributions from noncontrolling interests	2							2
Net loss attributable to common stockholders	1,798			1,798			1,798
Net income (loss) attributable to noncontrolling interests	1,789							1,789
Other comprehensive income	4				4		4
Balance (in shares) at Sep. 30, 2025		1,626.0
Ending balance (in shares) at Sep. 30, 2025						191.0
Balance at Sep. 30, 2025	30,397	$ 163	23,660	1,196	(310)	$ (6,024)	18,685	11,712
Balance (in shares) at Jun. 30, 2025		1,626.0
Beginning balance (in shares) at Jun. 30, 2025						191.0
Balance at Jun. 30, 2025	29,996	$ 163	23,642	738	(311)	$ (6,024)	18,208	11,788
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercised and issued stock-based awards	3		3				3
Stock-based compensation, including the tender of shares	13		15				15	(2)
Dividends	(865)			(216)			(216)	(649)
Contributions from noncontrolling interests	2							2
Net loss attributable to common stockholders	674			674			674
Net income (loss) attributable to noncontrolling interests	573							573
Other comprehensive income	1				1		1
Balance (in shares) at Sep. 30, 2025		1,626.0
Ending balance (in shares) at Sep. 30, 2025						191.0
Balance at Sep. 30, 2025	$ 30,397	$ 163	$ 23,660	$ 1,196	$ (310)	$ (6,024)	$ 18,685	$ 11,712