Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Contingency [Line Items]
Consolidated effective income tax rate (percent)	31.00%	32.00%
Tax benefit related to closure of tax audit	$ 182
PT Freeport Indonesia
Income Tax Contingency [Line Items]
Deferred Income Tax Credits	215
Unrecognized Tax Benefits, Period Increase (Decrease)	276
Unrecognized Tax Benefits, Decrease In Interest And Penalties	43
Unrecognized Tax Benefits, Decrease In Contingencies	179
Unrecognized Tax Benefits, Decrease In Contingencies, Penalties And Interest	35
PT Freeport Indonesia | Income Expense (Benefit)
Income Tax Contingency [Line Items]
Deferred Income Tax Credits	199
Deferred Income Taxes	17
PT Freeport Indonesia | Direct Operating Costs
Income Tax Contingency [Line Items]
Deferred Income Tax Credits	8
PT Freeport Indonesia | Interest Income (Expense), Net
Income Tax Contingency [Line Items]
Deferred Income Tax Credits	8
PT Freeport Indonesia | Other Nonoperating Income (Expense)
Income Tax Contingency [Line Items]
Deferred Income Taxes	$ 26