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

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of increase (decrease) of the credit facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the cost method.

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Debt and Equity - Additional Information (Details) $ / shares in Units, shares in Millions, $ in Millions		1 Months Ended			3 Months Ended		6 Months Ended			19 Months Ended	24 Months Ended
	Jun. 21, 2023 $ / shares	Aug. 03, 2023 USD ($)	Mar. 31, 2023 USD ($)	Apr. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) $ / shares	Jun. 30, 2022 USD ($) $ / shares	Jun. 30, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) shares	Jun. 30, 2022 USD ($) $ / shares	Aug. 03, 2023 USD ($)	Jun. 30, 2023 USD ($) $ / shares shares	Oct. 31, 2022 USD ($)	May 31, 2022 USD ($)	Dec. 31, 2019 case
Debt Instrument [Line Items]
Long-term debt					$ 9,495		$ 9,495	$ 10,620			$ 9,495
Repayments of debt							1,806		$ 2,993
Interest costs					234	$ 189	441		$ 342
Treasury stock purchases (in shares) \| shares								0.0			47.8
Shares repurchased											$ 1,800
Cost per share repurchased (in dollars per share) \| $ / shares											$ 38.35
Remaining authorized shares repurchase amount					$ 3,200		$ 3,200				$ 3,200
Dividends declared per share of common stock (in dollars per share) \| $ / shares	$ 0.15				$ 0.15	$ 0.15	$ 0.30		$ 0.30
Base cash dividend (in dollars per share) \| $ / shares	0.075
Variable cash dividend (in dollars per share) \| $ / shares	$ 0.075
Tax Matters In Peru, Contingent Liability					$ 50		$ 74
FCX affiliates \| Louisiana Parishes Coastal Erosion Cases
Debt Instrument [Line Items]
Loss Contingency, Pending Claims, Number \| case														42
FCX affiliates \| Louisiana Parishes Coastal Erosion Cases \| Settled litigation
Debt Instrument [Line Items]
Loss Contingency, Pending Claims, Number \| case														13
Unsecured Credit Facility \| PT-FI
Debt Instrument [Line Items]
Increase in line of credit				$ 1,300
Unsecured Credit Facility \| Cerro Verde
Debt Instrument [Line Items]
Letter of credit					0		0				0
Line of credit facility, maximum borrowing capacity													$ 350
Revolving Credit Facility \| PT-FI
Debt Instrument [Line Items]
Letter of credit					0		0				0
Property, Plant and Equipment
Debt Instrument [Line Items]
Interest costs capitalized					62	$ 33	119		$ 59
Line of Credit \| Letter of Credit
Debt Instrument [Line Items]
Letter of credit					8		8				8
Revolving credit facility, availability												$ 1,500
Line of Credit \| Revolving Credit Facility \| October 2022 Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity												3,000
Line of Credit \| Revolving Credit Facility \| PT-FI \| October 2022 Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity												$ 500
Senior Notes
Debt Instrument [Line Items]
Repurchased senior notes					131		131
Senior Notes \| Subsequent event
Debt Instrument [Line Items]
Cumulative repurchased principal amount										$ 1,300
Cumulative repurchase cost										$ 1,200
Repurchased senior notes		$ 103
Senior Notes \| PT-FI
Debt Instrument [Line Items]
Long-term debt					$ 2,979		$ 2,979	$ 2,978			$ 2,979
Repayments of debt			$ 996
Stated interest rate			3.875%