v3.26.3
Business Segments (Product Revenue) (Details)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
USD ($)
operation
segment
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
operation
segment
Sep. 30, 2025
USD ($)
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Royalty expense $ (58) $ (107) $ (170) $ (310)
Treatment chargesc (6) (2) (17) (45)
PT-FI export duties (2) (135) (2) (337)
Revenues from contracts with customers 7,425 6,819 20,596 19,919
Revenues $ 7,546 6,972 $ 20,809 20,282
Export duty to be paid, percent     7.50%  
Number of Divisions | segment 4   4  
NumberOfReportableSegmentsNotDisclosedFlag     Operating segments  
Location, Statement of Income, Balance [Axis]: us-gaap:Revenues | Not Designated as Hedging Instrument        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Embedded derivatives $ 121 153 $ 213 363
Copper Cathode        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Revenue 2,949 1,817 7,646 6,015
Refined Copper Products        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Revenue 1,722 1,330 4,759 3,259
Copper In Concentrates        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Revenue 1,177 1,967 3,236 5,376
Purchased Copper        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Revenue 66 18 319 489
Molybdenum        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Revenue $ 715 504 $ 2,056 1,425
Molybdenum | United States        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Number Of Operations | operation 2   2  
Gold        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Revenue $ 535 1,204 $ 1,867 3,512
Silver And Other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Revenue $ 327 $ 223 $ 902 $ 535
Copper | United States        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Number Of Operations | operation 7   7  
Copper | South America        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Number Of Operations | operation 2   2  
Copper | Morenci        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Noncontrolling interest, ownership percentage by parent 72.00%   72.00%  
Copper | PT-FI        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]        
Noncontrolling interest, ownership percentage by parent 66.00%   66.00%