v3.25.4
Segments - Summary of reconciliation between IFRS and underlying income, expenses and net result (Details) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of operating segments [line items]      
Income € 25,678 € 21,087 € 18,121
Expenses 13,887 13,315 12,084
Taxation 3,192 2,181 1,662
Non-controlling interests 275 258 235
Net result 8,324 5,334 4,140
EU IAS 39 carve out impact      
Disclosure of operating segments [line items]      
Income (2,643) 1,528 4,455
Taxation (647) 470 1,308
Net result (1,996) 1,058 3,147
Results IFRS-EU      
Disclosure of operating segments [line items]      
Income 23,035 22,615 22,575
Expenses 13,887 13,315 12,084
Taxation 2,545 2,650 2,970
Non-controlling interests 275 258 235
Net result € 6,327 € 6,392 € 7,287