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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) |

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