v3.26.1
Income taxes (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Current taxes:      
Current taxes € 3,805 € 4,713 € 5,631
Net deferred taxes:      
Net deferred taxes (785) (988) (263)
Income tax expense € 3,020 € 3,725 € 5,368
Effective tax rate 52.30% 57.40% 52.50%
Italy      
Current taxes:      
Current taxes € 6 € (255) € 97
Net deferred taxes:      
Net deferred taxes (379) (1,433) (137)
Foreign current income tax expense 118    
Exploration & Production | Foreign (outside Italy)      
Current taxes:      
Current taxes 3,671 4,946 5,349
Net deferred taxes:      
Net deferred taxes (279) 294 (22)
Other subsidiaries | Foreign (outside Italy)      
Current taxes:      
Current taxes 128 22 185
Net deferred taxes:      
Net deferred taxes € (127) € 151 € (104)