COMMITMENTS AND GUARANTEES (Other and Community Development Programs) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Commitments [Line Items]
Other liabilities		$ 1,887	$ 1,648
Total cost of sales		17,795	15,695	$ 15,089
Freeport Cobalt
Other Commitments [Line Items]
Disposal Group, Including Discontinued Operation, Consideration	$ 208
Proceeds from Divestiture of Businesses	173
Noncash or Part Noncash Divestiture, Amount of Consideration Received	$ 35
Business Combination, Contingent Consideration, Asset		40
Koboltti Chemicals Holdings Limited
Other Commitments [Line Items]
Ownership percentage of subsidiary	56.00%
Jervois
Other Commitments [Line Items]
Divestiture of Business, Percent of Shares Owned	7.00%
Indemnification Agreement
Other Commitments [Line Items]
Other liabilities		49	75
Koboltti Chemical Holdings Limited
Other Commitments [Line Items]
Sale of Stock, Consideration Received Per Transaction				60
Community Development Programs | PT-FI
Other Commitments [Line Items]
Total cost of sales		$ 141	$ 123	$ 123