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Inventories, Including Long-Term Mill and Leach Stockpiles - Additional Information (Details) lb in Millions, $ in Millions		3 Months Ended		6 Months Ended
	Apr. 01, 2022 lb	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)
Inventory [Line Items]
Metals inventory adjustments		$ 18	$ 0	$ 18	$ 1
Decrease in recoverable copper in leach stockpiles | lb	135
Cerro Verde
Inventory [Line Items]
Metals inventory adjustments		9		9
Copper
Inventory [Line Items]
Metals inventory adjustments		$ (9)		$ (9)

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Increase (Decrease) in Recoverable Copper in Leach Stockpiles

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Inventory Adjustment

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