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Debt and Equity - Components of Debt (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Debt Instrument [Line Items]    
Long-term debt $ 9,404 $ 8,948
Less current portion of debt (495) (41)
Long-term debt, less current portion 8,909 8,907
Line of Credit    
Debt Instrument [Line Items]    
Long-term debt 513 57
Line of Credit | PT-FI | Unsecured Credit Facility    
Debt Instrument [Line Items]    
Line of credit 250 250
Senior Notes | PT-FI    
Debt Instrument [Line Items]    
Long-term debt 2,983 2,983
Senior Notes | FCX    
Debt Instrument [Line Items]    
Long-term debt 5,283 5,281
Debentures | Freeport McMoRan Corporation    
Debt Instrument [Line Items]    
Long-term debt 352 353
Other    
Debt Instrument [Line Items]    
Long-term debt $ 23 $ 24