COVID Response, Dividend Suspended, Price Per Share

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Leverage ratio per debt agreement, calculated as net debt divided by EBITDA.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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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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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of interest capitalized during the period.

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Total interest costs incurred during the period and either capitalized or charged against earnings.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt and Equity (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				4 Months Ended	9 Months Ended		34 Months Ended	38 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2020 USD ($) $ / shares shares	Jun. 30, 2021	Sep. 30, 2023	Sep. 30, 2022	Apr. 30, 2024	Apr. 30, 2024	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Dilutive Securities Excluded from Computation of EPS Amount \| shares			10	40
Total Debt [Abstract]
Current portion of debt			$ (656)							$ (34)
Long-term Debt and Lease Obligation, Including Current Maturities			9,809							9,711
Net loss on early extinguishment of debt			0	$ 32
Interest costs			$ 160	$ 171
Dividends declared per share of common stock (in dollars per share) \| $ / shares			$ 0.075	$ 0
COVID Response, Dividend Suspended, Price Per Share \| $ / shares			$ 0.075
Long-term debt, less current portion			$ 9,153							9,677
Property, Plant and Equipment [Member]
Total Debt [Abstract]
Interest costs capitalized			15	$ 44
Line of Credit [Member] \| Cerro Verde [Member]
Total Debt [Abstract]
Long-term Debt and Lease Obligation, Including Current Maturities			524							523
Line of Credit [Member] \| Letter of Credit [Member]
Total Debt [Abstract]
Letter of credit			10
Revolving credit facility, availability			1,500
Line of Credit [Member] \| Revolving Credit Facility [Member]
Total Debt [Abstract]
Long-term Debt and Lease Obligation, Including Current Maturities			0
Revolving credit facility, availability			3,500
Line of Credit [Member] \| Revolving Credit Facility [Member] \| Maturing 2024 [Member]
Total Debt [Abstract]
Revolving credit facility, availability			3,280
Line of Credit [Member] \| Revolving Credit Facility [Member] \| Maturing 2023 [Member]
Total Debt [Abstract]
Revolving credit facility, availability			220
Senior Notes [Member] \| FCX [Member]
Total Debt [Abstract]
Long-term Debt and Lease Obligation, Including Current Maturities			8,785							8,783
Debentures [Member] \| Freeport McMoRan Corporation [Member]
Total Debt [Abstract]
Long-term Debt and Lease Obligation, Including Current Maturities			356							356
Other Debt, Including Capital Leases and Short Term Borrowings [Member]
Total Debt [Abstract]
Long-term Debt and Lease Obligation, Including Current Maturities			$ 144							$ 49
Forecast
Debt Instrument [Line Items]
Debt Instrument, Covenant Compliance, Leverage Ratio					5.25			3.75
Total Debt [Abstract]
Debt Instrument, Covenant, Interest Coverage Ratio, Minimum									2.25
Forecast \| Revolving Credit Facility [Member] \| Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Compliance, Leverage Ratio	3.75	5.25
Total Debt [Abstract]
Debt Instrument, Covenant, Interest Coverage Ratio, Minimum						2.75	2.00