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Fair Value Measurement | 6 Months Ended
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Jun. 30, 2025
Fair Value Disclosures [Abstract] |
Fair Value Measurement | FAIR VALUE MEASUREMENT Fair value accounting guidance includes a hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). FCX does not have any significant Level 3 assets or liabilities. FCX’s financial instruments are recorded on the consolidated balance sheets at fair value except for debt. A summary of the carrying amount and fair value of FCX’s financial instruments (including those measured at net asset value (NAV) as a practical expedient), other than cash and cash equivalents, restricted cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities, accrued income taxes and dividends payable (refer to Note 5), follows:
| At June 30, 2025
| Carrying |  | Fair Value
| Amount |  | Total |  | NAV |  | Level 1 |  | Level 2 |  | Level 3
Assets |  |  |  |  |  |  |  |  |  |  |
Investment securities:a,b |  |  |  |  |  |  |  |  |  |  |
U.S. core fixed income fund | $ | 28 |  |  | $ | 28 |  |  | $ | 28 |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Equity securities | 21 |  |  | 21 |  |  | — |  |  | 21 |  |  | — |  |  | — |
Total | 49 |  |  | 49 |  |  | 28 |  |  | 21 |  |  | — |  |  | — |
Legally restricted funds:a |  |  |  |  |  |  |  |  |  |  |
U.S. core fixed income fund | 69 |  |  | 69 |  |  | 69 |  |  | — |  |  | — |  |  | — |
Government mortgage-backed securities | 57 |  |  | 57 |  |  | — |  |  | — |  |  | 57 |  |  | — |
Corporate bonds | 35 |  |  | 35 |  |  | — |  |  | — |  |  | 35 |  |  | — |
Government bonds and notes | 25 |  |  | 25 |  |  | — |  |  | — |  |  | 25 |  |  | — |
Money market funds | 22 |  |  | 22 |  |  | — |  |  | 22 |  |  | — |  |  | — |
Asset-backed securities | 16 |  |  | 16 |  |  | — |  |  | — |  |  | 16 |  |  | — |
Collateralized mortgage-backed securities | 1 |  |  | 1 |  |  | — |  |  | — |  |  | 1 |  |  | — |
Total | 225 |  |  | 225 |  |  | 69 |  |  | 22 |  |  | 134 |  |  | — |
Derivatives:c |  |  |  |  |  |  |  |  |  |  |
Embedded derivatives in provisional sales/purchase contracts in a gross asset position | 66 |  |  | 66 |  |  | — |  |  | — |  |  | 66 |  |  | — |
Copper futures and swap contracts | 41 |  |  | 41 |  |  | — |  |  | 27 |  |  | 14 |  |  | — |
Total | 107 |  |  | 107 |  |  | — |  |  | 27 |  |  | 80 |  |  | — |
Liabilities |  |  |  |  |  |  |  |  |  |  |
Derivatives:c |  |  |  |  |  |  |  |  |  |  |
Embedded derivatives in provisional sales/purchase contracts in a gross liability position | 19 |  |  | 19 |  |  | — |  |  | — |  |  | 19 |  |  | — |
Copper futures and swap contracts | 2 |  |  | 2 |  |  | — |  |  | — |  |  | 2 |  |  | — |
Copper forward contracts | 1 |  |  | 1 |  |  | — |  |  | 1 |  |  | — |  |  | — |
Total | 22 |  |  | 22 |  |  | — |  |  | 1 |  |  | 21 |  |  | — |
Debt d | 9,251 |  |  | 9,249 |  |  | — |  |  | — |  |  | 9,249 |  |  | — |
| At December 31, 2024
| Carrying |  | Fair Value
| Amount |  | Total |  | NAV |  | Level 1 |  | Level 2 |  | Level 3
Assets |  |  |  |  |  |  |  |  |  |  |
Investment securities:a,b |  |  |  |  |  |  |  |  |  |  |
U.S. core fixed income fund | $ | 27 |  |  | $ | 27 |  |  | $ | 27 |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Equity securities | 9 |  |  | 9 |  |  | — |  |  | 9 |  |  | — |  |  | — |
Total | 36 |  |  | 36 |  |  | 27 |  |  | 9 |  |  | — |  |  | — |
Legally restricted funds:a |  |  |  |  |  |  |  |  |  |  |
U.S. core fixed income fund | 66 |  |  | 66 |  |  | 66 |  |  | — |  |  | — |  |  | — |
Government mortgage-backed securities | 54 |  |  | 54 |  |  | — |  |  | — |  |  | 54 |  |  | — |
Government bonds and notes | 34 |  |  | 34 |  |  | — |  |  | — |  |  | 34 |  |  | — |
Corporate bonds | 31 |  |  | 31 |  |  | — |  |  | — |  |  | 31 |  |  | — |
Money market funds | 19 |  |  | 19 |  |  | — |  |  | 19 |  |  | — |  |  | — |
Asset-backed securities | 12 |  |  | 12 |  |  | — |  |  | — |  |  | 12 |  |  | — |
Collateralized mortgage-backed securities | 1 |  |  | 1 |  |  | — |  |  | — |  |  | 1 |  |  | — |
Total | 217 |  |  | 217 |  |  | 66 |  |  | 19 |  |  | 132 |  |  | — |
Derivatives:c |  |  |  |  |  |  |  |  |  |  |
Embedded derivatives in provisional sales/purchase contracts in a gross asset position | 10 |  |  | 10 |  |  | — |  |  | — |  |  | 10 |  |  | — |
Copper forward contracts | 10 |  |  | 10 |  |  | — |  |  | 4 |  |  | 6 |  |  | — |
Total | 20 |  |  | 20 |  |  | — |  |  | 4 |  |  | 16 |  |  | — |
Liabilities |  |  |  |  |  |  |  |  |  |  |
Derivatives:c |  |  |  |  |  |  |  |  |  |  |
Embedded derivatives in provisional sales/purchase contracts in a gross liability position | 60 |  |  | 60 |  |  | — |  |  | — |  |  | 60 |  |  | — |
Copper futures and swap contracts | 28 |  |  | 28 |  |  | — |  |  | 17 |  |  | 11 |  |  | — |
Copper forward contracts | 1 |  |  | 1 |  |  | — |  |  | 1 |  |  | — |  |  | — |
Total | 89 |  |  | 89 |  |  | — |  |  | 18 |  |  | 71 |  |  | — |
Debt d | 8,948 |  |  | 8,807 |  |  | — |  |  | — |  |  | 8,807 |  |  | — |
a.Current portion included in other current assets and long-term portion included in other assets. b.Excludes restricted cash and cash equivalents (which approximated fair value), primarily associated with talc-related litigation at June 30, 2025, and PTFI’s export proceeds at December 31, 2024. Refer to Note 5. c.Refer to Note 5 for further discussion and balance sheet classifications. d.Recorded at cost except for debt assumed in acquisitions, which are recorded at fair value at the respective acquisition dates. Valuation Techniques. The U.S. core fixed income fund is valued at NAV. The fund strategy seeks total return consisting of income and capital appreciation primarily by investing in a broad range of investment-grade debt securities, including U.S. government obligations, corporate bonds, mortgage-backed securities, asset-backed securities and money market instruments. There are no restrictions on redemptions (which are usually within one business day of notice). Equity securities are valued at the closing price reported on the active market on which the individual securities are traded and, as such, are classified within Level 1 of the fair value hierarchy. Fixed income securities (government securities, corporate bonds, asset-backed securities and collateralized mortgage-backed securities) are valued using a bid-evaluation price or a mid-evaluation price. These evaluations are based on quoted prices, if available, or models that use observable inputs and, as such, are classified within Level 2 of the fair value hierarchy. Money market funds are classified within Level 1 of the fair value hierarchy because they are valued using quoted market prices in active markets. FCX’s embedded derivatives on provisional copper concentrate, copper cathode and gold purchases and sales are valued using quoted monthly LME copper forward prices and the adjusted London gold prices at each reporting date based on the month of maturity (refer to Note 5 for further discussion); however, FCX’s contracts themselves are not traded on an exchange. As a result, these derivatives are classified within Level 2 of the fair value hierarchy. FCX’s derivative financial instruments for copper futures and swap contracts and copper forward contracts that are traded on the respective exchanges are classified within Level 1 of the fair value hierarchy because they are valued using quoted monthly COMEX or LME prices at each reporting date based on the month of maturity (refer to Note 5 for further discussion). Certain of these contracts are traded on the over-the-counter market and are classified within Level 2 of the fair value hierarchy based on COMEX and LME forward prices. Debt is primarily valued using available market quotes and, as such, is classified within Level 2 of the fair value hierarchy. The techniques described above may produce a fair value that may not be indicative of NRV or reflective of future fair values. Furthermore, while FCX believes its valuation techniques are appropriate and consistent with other market participants, the use of different techniques or assumptions to determine fair value of certain financial instruments could result in a different fair value measurement at the reporting date. There have been no changes in the techniques used at June 30, 2025, as compared with those techniques used at December 31, 2024.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 107 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-107 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 940 -SubTopic 820 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478119/940-820-50-1 + Details
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