v3.26.1
Debt and Equity - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Jul. 31, 2026
May 31, 2026
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Debt Instrument [Line Items]              
Interest costs     $ 240,000,000 $ 181,000,000 $ 414,000,000 $ 355,000,000  
Interest Costs Incurred, Taxes Withheld     67,000,000   67,000,000    
Interest costs capitalized     145,000,000 $ 99,000,000 205,000,000 $ 203,000,000  
Interest Costs Capitalized, Taxes Withheld     $ 64,000,000   $ 64,000,000    
Treasury stock purchases (in shares)         3.4    
Shares repurchased         $ 203,000,000    
Cost per share repurchased (in dollars per share)         $ 59.30    
Dividends declared per share of common stock (in dollars per share)     $ 0.15 $ 0.15 $ 0.30 $ 0.30  
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, remaining authorized amount $ 2,800,000,000            
Subsequent event | Share Repurchase Program              
Debt Instrument [Line Items]              
Treasury stock purchases (in shares) 55.4            
Cost per share repurchased (in dollars per share) $ 39.80            
Share Repurchase Program, Authorized, Amount $ 5,000,000,000.0            
Line of Credit | Unsecured Credit Facility | PT-FI              
Debt Instrument [Line Items]              
Line of credit     $ 250,000,000   $ 250,000,000   $ 250,000,000
Line of credit facility, maximum borrowing capacity     1,750,000,000   1,750,000,000    
Line of Credit | Revolving Credit Facility | May 2031 Senior Unsecured Revolving Credit Facility              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity   $ 3,000,000,000.0          
Term   5 years          
Line of Credit | Revolving Credit Facility | PT-FI | May 2031 Senior Unsecured Revolving Credit Facility              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity   $ 500,000,000          
Line of Credit | Revolving Credit Facility | Cerro Verde | May 2031 Senior Unsecured Revolving Credit Facility, Cerro Verde              
Debt Instrument [Line Items]              
Line of credit     0   0    
Line of credit facility, maximum borrowing capacity   $ 350,000,000          
Term   5 years          
Line of Credit | Letter of Credit              
Debt Instrument [Line Items]              
Line of credit     $ 5,000,000   $ 5,000,000    
Revolving credit facility, availability   $ 1,500,000,000