The dollar value of the pounds of copper purchased from joint venture partner.

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Amounts due from an entity in which the reporting entity shares joint control with another party or group, due within 1 year (or 1 business cycle).

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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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OWNERSHIP IN SUBSIDIARIES AND JOINT VENTURES (Details) oz in Millions, lb in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2017 USD ($) lb oz	Dec. 31, 2016 USD ($)	May 31, 2016	Dec. 31, 1994 lb oz
Summary of investment holdings [Line Items]
Retained Earnings (accumulated deficit)		$ (14,722)	$ (16,540)
Freeport-McMoRan Corporation [Member]
Summary of investment holdings [Line Items]
Number of pounds of copper purchased from Sumitomo (in pounds) \| lb		218
Sumitomo Metal Mining, Ltd. and SMM Morenci Inc. [Member]
Summary of investment holdings [Line Items]
Dollar value of pounds purchased from Sumitomo		$ 610
Due from Joint Ventures, Current		$ 18
PT-FI
Summary of investment holdings [Line Items]
Percent interest in certain assets and future production per terms of the joint venture agreement		60.00%
Percentage of cash flows from specified annual amounts of copper, gold and silver calculated by reference to proven and probable reserves as of 12/31/1994 (in hundredths)		100.00%
Percentage of remaining cash flows		60.00%
Percentage of optional participation of any other future exploration costs shared by joint venture		60.00%
PT-FI
Summary of investment holdings [Line Items]
Net assets (liabilities) in subsidiary		$ 6,300
Retained Earnings (accumulated deficit)		$ 6,000
Rio Tinto Share In Joint Venture [Member]
Summary of investment holdings [Line Items]
Percent interest in certain assets and future production per terms of the joint venture agreement		40.00%
Percentage of optional participation of any other future exploration costs shared by joint venture		40.00%
Sumitomo Metal Mining Co., Ltd. [Member]
Summary of investment holdings [Line Items]
Due from Joint Ventures, Current			15
Copper
Summary of investment holdings [Line Items]
Estimated Recoverable Proven And Probable Reserves (in pounds) \| lb		103,700
Copper \| PT-FI
Summary of investment holdings [Line Items]
Estimated Recoverable Proven And Probable Reserves (in pounds) \| lb					27,100
Gold
Summary of investment holdings [Line Items]
Estimated Recoverable Proven And Probable Reserves (in pounds) \| oz		34.2
Gold \| PT-FI
Summary of investment holdings [Line Items]
Estimated Recoverable Proven And Probable Reserves (in pounds) \| oz					38.4
Silver \| PT-FI
Summary of investment holdings [Line Items]
Estimated Recoverable Proven And Probable Reserves (in pounds) \| oz					75.8
Morenci
Summary of investment holdings [Line Items]
Ownership percentage		72.00%
Morenci \| SMM Morenci Inc. [Member]
Summary of investment holdings [Line Items]
Ownership percentage		13.00%
Morenci \| Sumitomo Metal Mining Co., Ltd. [Member]
Summary of investment holdings [Line Items]
Ownership percentage		15.00%
Cerro Verde [Member]
Summary of investment holdings [Line Items]
Ownership percentage		53.56%
Other North America Mines [Member]
Summary of investment holdings [Line Items]
Ownership percentage		100.00%
El Abra [Member]
Summary of investment holdings [Line Items]
Ownership percentage		51.00%
PT Indocopper Investama [Member]
Summary of investment holdings [Line Items]
Ownership percentage		100.00%
Freeport Minerals Corporation [Member]
Summary of investment holdings [Line Items]
Loans outstanding		$ 0
Freeport Minerals Corporation [Member] \| Subsidiaries [Member]
Summary of investment holdings [Line Items]
Net assets (liabilities) in subsidiary		16,000
Retained Earnings (accumulated deficit)		$ (14,000)
PT-FI
Summary of investment holdings [Line Items]
Ownership percentage		81.28%
Loans outstanding		$ 0
PT-FI \| PT Indocopper Investama [Member]
Summary of investment holdings [Line Items]
Ownership percentage		9.36%
PT-FI \| Rio Tinto Share In Joint Venture [Member]
Summary of investment holdings [Line Items]
Percentage interest in joint venture contract of work by third party		40.00%
Optional Participation Of Future Exploration Costs Shared By Joint Venture Percentage		40.00%
Atlantic Copper [Member]
Summary of investment holdings [Line Items]
Ownership percentage		100.00%
Net assets (liabilities) in subsidiary		$ (40)
Retained Earnings (accumulated deficit)		(452)
Loans outstanding		$ 365
Freeport-McMoRan Oil & Gas
Summary of investment holdings [Line Items]
Ownership percentage		100.00%
Net assets (liabilities) in subsidiary		$ (13,700)
Retained Earnings (accumulated deficit)		(25,300)
Loans outstanding		9,900
Rio Tinto [Member] \| Co-venturer [Member]
Summary of investment holdings [Line Items]
Due to Related Parties, Current		$ 30	$ 10
Scenario, Forecast [Member] \| Rio Tinto Share In Joint Venture [Member]
Summary of investment holdings [Line Items]
Percent interest in certain assets and future production per terms of the joint venture agreement	40.00%
Morenci
Summary of investment holdings [Line Items]
Ownership percentage				85.00%
Morenci \| SMM Morenci Inc. [Member]
Summary of investment holdings [Line Items]
Ownership percentage			13.00%
Morenci \| Sumitomo Metal Mining Co., Ltd. [Member]
Summary of investment holdings [Line Items]
Ownership percentage				15.00%