DEBT - Components of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Instruments [Line Items]
Debt issuance costs, net	$ 67	$ 78
Long-term debt	9,422	10,620
Less current portion of debt	(766)	(1,037)
Long-term debt	8,656	9,583
Senior Notes | 3.875% Senior Notes due March 2023
Debt Instruments [Line Items]
Long-term debt	0	995
Senior Notes | senior notes 4.55
Debt Instruments [Line Items]
Long-term debt	730	729
Senior Notes | Senior Notes due 2027, 5%
Debt Instruments [Line Items]
Long-term debt	448	465
Senior Notes | Senior Notes Due 2028, 4.125%
Debt Instruments [Line Items]
Long-term debt	483	543
Senior Notes | Senior Notes Due 2028, 4.375%
Debt Instruments [Line Items]
Long-term debt	430	475
Senior Notes | Senior Notes due 2029, 5.25%
Debt Instruments [Line Items]
Long-term debt	468	499
Senior Notes | Senior Notes Due 2030, 4.25%
Debt Instruments [Line Items]
Long-term debt	446	494
Senior Notes | Senior Notes Due 2030, 4.625%
Debt Instruments [Line Items]
Long-term debt	588	615
Senior Notes | Senior Notes due 2034 5 point 4 percent
Debt Instruments [Line Items]
Long-term debt	723	723
Senior Notes | 5.450% Senior Notes due March 2043
Debt Instruments [Line Items]
Long-term debt	1,689	1,687
Other Debt
Debt Instruments [Line Items]
Long-term debt	83	62
Freeport McMoRan Corporation | Senior Notes | Senior Notes Due 2031
Debt Instruments [Line Items]
Long-term debt	121	122
Freeport McMoRan Corporation | Senior Notes | Senior Notes Due 2034
Debt Instruments [Line Items]
Long-term debt	118	118
Freeport McMoRan Corporation | Debentures | Debentures Due 2027
Debt Instruments [Line Items]
Long-term debt	115	115
Freeport McMoRan Corporation | Revolving Credit Facility
Debt Instruments [Line Items]
Long-term line of credit	0	0
PT-FI | Senior Notes | Senior Notes Due 2027, 4.763%
Debt Instruments [Line Items]
Long-term debt	746	745
PT-FI | Senior Notes | Senior Notes Due 2032, 5.315%
Debt Instruments [Line Items]
Long-term debt	1,490	1,489
PT-FI | Senior Notes | Senior Notes Due 2052, 6.200%
Debt Instruments [Line Items]
Long-term debt	744	744
PT-FI | Revolving Credit Facility
Debt Instruments [Line Items]
Long-term line of credit	0	0
Cerro Verde | Revolving Credit Facility
Debt Instruments [Line Items]
Long-term line of credit	$ 0	$ 0