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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) segment | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 21, 2018
Schedule of Significant Accounting Policies [Line Items] |  |  |  |
Number of operating segments | segment | 4 |  |  |
Foreign currency transaction gains (losses), before tax | $ | $ 9 | $ 66 | $ 34 |
Building |  |  |  |
Schedule of Significant Accounting Policies [Line Items] |  |  |  |
Property, plant, equipment and mine development, useful life | 50 years |  |  |
Machinery and equipment | Minimum |  |  |  |
Schedule of Significant Accounting Policies [Line Items] |  |  |  |
Property, plant, equipment and mine development, useful life | 3 years |  |  |
Machinery and equipment | Maximum |  |  |  |
Schedule of Significant Accounting Policies [Line Items] |  |  |  |
Property, plant, equipment and mine development, useful life | 50 years |  |  |
PT Freeport Indonesia |  |  |  |
Schedule of Significant Accounting Policies [Line Items] |  |  |  |
Ownership percentage of subsidiary | 81.00% |  |  | 48.76%
Copper |  |  |  |
Schedule of Significant Accounting Policies [Line Items] |  |  |  |
Percentage of ultimate copper recovery from leach stockpiles | 90.00% |  |  |
Percentage of copper ultimately recoverable from newly placed material on active stockpiles extracted during the first year | 80.00% |  |  |
PT Freeport Indonesia | PT Freeport Indonesia |  |  |  |
Schedule of Significant Accounting Policies [Line Items] |  |  |  |
Ownership percentage of subsidiary | 48.76% |  |  |

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