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DEBT - Components of Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Debt Instruments [Line Items]    
Debt issuance costs, net $ 78 $ 86
Long-term debt 10,620 9,450
Less current portion of debt (1,037) (372)
Long-term debt 9,583 9,078
Senior Notes | 3.875% Senior Notes due March 2023    
Debt Instruments [Line Items]    
Long-term debt 995 995
Senior Notes | senior notes 4.55    
Debt Instruments [Line Items]    
Long-term debt 729 728
Senior Notes | Senior Notes due 2027, 5%    
Debt Instruments [Line Items]    
Long-term debt 465 594
Senior Notes | Senior Notes Due 2028, 4.125%    
Debt Instruments [Line Items]    
Long-term debt 543 693
Senior Notes | Senior Notes Due 2028, 4.375%    
Debt Instruments [Line Items]    
Long-term debt 475 643
Senior Notes | Senior Notes due 2029, 5.25%    
Debt Instruments [Line Items]    
Long-term debt 499 593
Senior Notes | Senior Notes Due 2030, 4.25%    
Debt Instruments [Line Items]    
Long-term debt 494 593
Senior Notes | Senior Notes Due 2030, 4.625%    
Debt Instruments [Line Items]    
Long-term debt 615 841
Senior Notes | Senior Notes due 2034 5 point 4 percent    
Debt Instruments [Line Items]    
Long-term debt 723 742
Senior Notes | 5.450% Senior Notes due March 2043    
Debt Instruments [Line Items]    
Long-term debt 1,687 1,846
Other Debt    
Debt Instruments [Line Items]    
Long-term debt 62 70
Revolving Credit Facility | Line of Credit    
Debt Instruments [Line Items]    
Long-term debt 0  
Freeport McMoRan Corporation | Senior Notes | Senior Notes Due 2031    
Debt Instruments [Line Items]    
Long-term debt 122 123
Freeport McMoRan Corporation | Senior Notes | Senior Notes Due 2034    
Debt Instruments [Line Items]    
Long-term debt 118 117
Freeport McMoRan Corporation | Debentures | Debentures Due 2027    
Debt Instruments [Line Items]    
Long-term debt 115 115
Freeport McMoRan Corporation | Revolving Credit Facility    
Debt Instruments [Line Items]    
Long-term line of credit 0 0
PT-FI | Senior Notes | Senior Notes Due 2027, 4.763%    
Debt Instruments [Line Items]    
Long-term debt 745 0
PT-FI | Senior Notes | Senior Notes Due 2032, 5.315%    
Debt Instruments [Line Items]    
Long-term debt 1,489 0
PT-FI | Senior Notes | Senior Notes Due 2052, 6.200%    
Debt Instruments [Line Items]    
Long-term debt 744 0
PT-FI | Line of Credit    
Debt Instruments [Line Items]    
Long-term debt 0 432
PT-FI | Revolving Credit Facility    
Debt Instruments [Line Items]    
Long-term line of credit 0 0
Cerro Verde | Line of Credit    
Debt Instruments [Line Items]    
Long-term debt 0 325
Cerro Verde | Revolving Credit Facility    
Debt Instruments [Line Items]    
Long-term line of credit $ 0 $ 0