v3.26.1
Debt and Equity - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Millions
3 Months Ended
Apr. 30, 2026
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Debt Instrument [Line Items]        
Interest costs   $ 174,000,000    
Interest costs capitalized   $ 60,000,000 $ 104,000,000  
Treasury stock purchases (in shares)   1.7    
Shares repurchased   $ 93,000,000    
Cost per share repurchased (in dollars per share)   $ 54.25    
Dividends declared per share of common stock (in dollars per share)   0.15 $ 0.15  
Base cash dividend (in dollars per share)   0.075    
Variable cash dividend (in dollars per share)   $ 0.075    
Subsequent event        
Debt Instrument [Line Items]        
Stock repurchase program, authorized amount $ 2,900,000,000      
Subsequent event | Share Repurchase Program        
Debt Instrument [Line Items]        
Treasury stock purchases (in shares) 53.7      
Cost per share repurchased (in dollars per share) $ 39.01      
Line of Credit | Revolving Credit Facility | October 2022 Unsecured Revolving Credit Facility        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   $ 3,000,000,000.0    
Line of credit   0    
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   500,000,000    
Line of Credit | Letter of Credit        
Debt Instrument [Line Items]        
Revolving credit facility, availability   1,500,000,000    
Line of credit   5,000,000    
Line of Credit | Unsecured Credit Facility | PT-FI        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   1,750,000,000    
Line of credit   250,000,000   $ 250,000,000
Line of Credit | Unsecured Credit Facility | Cerro Verde        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   350,000,000    
Line of credit   $ 0