COMMITMENTS AND GUARANTEES (Operating Leases) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Operating Leased Assets And Liabilities [Line Items]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant, equipment and mine development costs, net	Property, plant, equipment and mine development costs, net
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accounts payable and accrued liabilities	Accounts payable and accrued liabilities
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accounts payable and accrued liabilities	Accounts payable and accrued liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Lease right-of-use assets (included in property, plant, equipment and mine development costs, net)	$ 853	$ 448
Short-term lease liabilities (included in accounts payable and accrued liabilities)	98	84
Long-term lease liabilities (included in other liabilities)	692	347
Operating Lease, Liability	790	431
Operating leases	44	48	$ 46
Variable and short-term leases	146	126	84
Total operating lease costs	190	174	130
Finance Lease Cost	24	6	6
Operating Lease, Right-Of-Use Assets, Acquired	482	167	76
Operating Lease, Payments	61	61	41
Finance Lease, Principal Payments	$ 41	$ 3	$ 7
Operating Lease, Weighted Average Discount Rate, Percent	4.90%	4.70%
Operating Lease, Weighted Average Remaining Lease Term	15 years	13 years 1 month 6 days
2025	$ 131
2026	96
2027	81
2028	67
2029	113
Thereafter	612
Total payments	1,100
Less amount representing interest	(310)
PT Smelting
Schedule of Operating Leased Assets And Liabilities [Line Items]
Variable and short-term leases	50	$ 30
PT Freeport Indonesia | Oxygen Plant
Schedule of Operating Leased Assets And Liabilities [Line Items]
Finance lease, liability	217
PT Freeport Indonesia | Shallow Draft Vessels
Schedule of Operating Leased Assets And Liabilities [Line Items]
Finance lease, liability	119
PT Freeport Indonesia | Land
Schedule of Operating Leased Assets And Liabilities [Line Items]
Finance lease, liability	95	130
PT Freeport Indonesia | Wharf
Schedule of Operating Leased Assets And Liabilities [Line Items]
Finance lease, liability	$ 90	$ 93