Debt and Equity - Components of Debt (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term debt	$ 9,425	$ 9,422
Less current portion of debt	(769)	(766)
Long-term debt, less current portion	8,656	8,656
Senior Notes | FCX
Debt Instrument [Line Items]
Long-term debt	6,007	6,005
Senior Notes | PT-FI
Debt Instrument [Line Items]
Long-term debt	2,981	2,980
Debentures | Freeport McMoRan Corporation
Debt Instrument [Line Items]
Long-term debt	353	354
Other
Debt Instrument [Line Items]
Long-term debt	$ 84	$ 83