The change in ownership interest in a subsidiary during the period, expressed as a percentage.

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Company's indirect ownership percentage of a subsidiary through another wholly owned subsidiary.

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

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Estimated Recoverable Proven And Probable Reserves

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Joint Venture Interest In Assets And Production

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Carrying value as of the balance sheet date of cash flows (due within one year or within the normal operating cycle if longer) due to PT Freeport Indonesia's joint venture partner, Rio Tinto.

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The net receivable due from joint venture partner.

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Number of pounds of copper purchased from joint venture partner's share of Morenci's production.

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Percentage of optional participation in other future exploration costs shared by joint venture.

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Percentage of capital expansion costs shared by joint venture.

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The percentage of undivided interest owned by a third party.

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The percent interest the subsidiary has in the Contract of Work and future exploration projects held by the joint venture partner in certain assets and future production.

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The percentage of cash flows that flow to the subsidiary from specified amounts of copper, gold and silver calculated by reference to proven and probable reserves.

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No definition available.

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The percentage of cash flows from remaining areas payable to subsidiary involved in joint venture

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The percentage of undivided interest in the held by the company.

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Amount of net assets (liabilities).

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Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

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Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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OWNERSHIP IN SUBSIDIARIES AND JOINT VENTURES (Details) oz in Millions, lb in Millions, $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2022	Dec. 31, 2015 USD ($) lb	Dec. 31, 2014 USD ($)	Dec. 31, 1994 oz lb
Summary of investment holdings [Line Items]
Retained earnings (accumulated deficit) of subsidiary			$ (12,387)	$ 128
Morenci [Member]
Summary of investment holdings [Line Items]
Percentage of undivided interest owned by company			85.00%
Other North America Mines [Member]
Summary of investment holdings [Line Items]
Company's direct ownership percentage			100.00%
Cerro Verde [Member]
Summary of investment holdings [Line Items]
Company's direct ownership percentage			53.56%
El Abra [Member]
Summary of investment holdings [Line Items]
Company's direct ownership percentage			51.00%
Tenke [Member]
Summary of investment holdings [Line Items]
Company's direct ownership percentage			56.00%
Freeport-McMoRan Corporation [Member]
Summary of investment holdings [Line Items]
Net assets (liabilities) in subsidiary			$ 18,900
Retained earnings (accumulated deficit) of subsidiary			(10,400)
Loans outstanding			$ 0
Number of pounds of copper purchased from Sumitomo (in pounds) \| lb			98
Dollar value of pounds purchased from Sumitomo			$ 244
Net receivable from Sumitomo			$ 10	11
PT Freeport Indonesia [Member]
Summary of investment holdings [Line Items]
Company's direct ownership percentage			81.28%
Net assets (liabilities) in subsidiary			$ 5,600
Retained earnings (accumulated deficit) of subsidiary			5,400
Loans outstanding			$ 310
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 Indocopper Investama [Member]
Summary of investment holdings [Line Items]
Company's direct ownership percentage			100.00%
Company's indirect ownership percentage of a subsidiary through another wholly owned subsidiary			9.36%
Atlantic Copper [Member]
Summary of investment holdings [Line Items]
Company's direct ownership percentage			100.00%
Net assets (liabilities) in subsidiary			$ (79)
Retained earnings (accumulated deficit) of subsidiary			(489)
Loans outstanding			$ 248
Freeport-McMoRan Oil & Gas [Member]
Summary of investment holdings [Line Items]
Company's direct ownership percentage			100.00%
Net assets (liabilities) in subsidiary			$ (7,400)
Retained earnings (accumulated deficit) of subsidiary			19,000
Loans outstanding			$ 6,600
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%
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%
Rio Tinto's share of joint venture cash flows			$ 10	$ 29
Sumitomo's Share in Joint Venture [Member]
Summary of investment holdings [Line Items]
Percentage of undivided interest owned by third party			15.00%
Copper [Member] \| PT Freeport Indonesia [Member]
Summary of investment holdings [Line Items]
Estimated Recoverable Proven And Probable Reserves (in pounds) \| lb					27,100
Gold [Member] \| PT Freeport Indonesia [Member]
Summary of investment holdings [Line Items]
Estimated Recoverable Proven And Probable Reserves (in pounds) \| oz					38.4
Silver (ounces) [Member] \| PT Freeport Indonesia [Member]
Summary of investment holdings [Line Items]
Estimated Recoverable Proven And Probable Reserves (in pounds) \| oz					75.8
Subsequent Event [Member] \| Morenci [Member]
Summary of investment holdings [Line Items]
Percentage of undivided interest owned by company	72.00%
Change in Ownership, Percentage	13.00%
Subsequent Event [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%
Subsequent Event [Member] \| Sumitomo's Share in Joint Venture [Member]
Summary of investment holdings [Line Items]
Percentage of undivided interest owned by third party	15.00%