COMMITMENTS AND GUARANTEES (Operating Leases) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Operating Leased Assets And Liabilities [Line Items]
Operating Lease, Liability, Noncurrent	$ 294	$ 281
Lease right-of-use assets (included in property, plant, equipment and mine development costs, net)	342	337
Operating leases	46	42	$ 42
Variable and short-term leases	84	62	74
Total operating lease costs	130	104	116
Operating Lease, Payments	41	54	36
Finance Lease, Principal Payments	$ 7	$ 25	$ 4
Operating Lease, Weighted Average Discount Rate, Percent	4.10%	4.20%
Operating Lease, Weighted Average Remaining Lease Term	12 years	12 years 4 months 24 days
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	$ 48
Lessee, Operating Lease, Liability, Payments, Due Year Two	85
Lessee, Operating Lease, Liability, Payments, Due Year Three	34
Lessee, Operating Lease, Liability, Payments, Due Year Four	29
Lessee, Operating Lease, Liability, Payments, Due Year Five	24
Lessee, Operating Lease, Liability, Payments, Due after Year Five	186
Lessee, Operating Lease, Liability, Payments, Due	406
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(74)
Operating Lease, Liability	332	$ 319
Operating Lease, Liability, Current	$ (38)	$ (38)
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
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
PT Freeport Indonesia
Schedule of Operating Leased Assets And Liabilities [Line Items]
Operating Lease, Liability, Noncurrent	$ 141	$ 126