Inventories, Including Long-Term Mill and Leach Stockpiles - Additional Information (Details) lb in Millions, $ in Millions		3 Months Ended		9 Months Ended
	Apr. 01, 2022 lb	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Inventory [Line Items]
Metals inventory adjustments		$ 25	$ 14	$ 43	$ 15
Decrease in recoverable copper in leach stockpiles | lb	135
Cerro Verde
Inventory [Line Items]
Metals inventory adjustments				10
Copper
Inventory [Line Items]
Metals inventory adjustments				$ (33)