v3.26.1
INCOME TAXES: (Details)
€ in Millions, $ in Millions
6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
EUR (€)
Jun. 30, 2025
USD ($)
INCOME TAXES      
Statutory income tax provision $ 1,505.1   $ 930.0
Peruvian royalty 69.7   33.3
Mexican royalty 175.2   94.7
Peruvian special mining tax 86.3   50.7
Total income tax provision $ 1,836.3   $ 1,108.7
Effective income tax rate (as a percent) 36.40% 36.40% 36.70%
Threshold minimum aggregate revenue under pillar two tax rules | €   € 750  
Global minimum tax rate 15.00% 15.00%  
Peru      
INCOME TAXES      
Royalty charges $ 156.0   $ 84.0
Increase (decrease) in income tax expense (benefit) 15.4    
Unrecognized Tax Benefits 24.7    
Mexico      
INCOME TAXES      
Mexican royalty $ 175.2   $ 94.7