v3.26.1
Segments - Summary of reconciliation between IFRS and underlying income, expenses and net result (Details) - EUR (€)
€ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Disclosure of operating segments [line items]    
Income € 11,668 € 12,404
Expenses 6,930 6,846
Taxation 1,434 1,516
Non-controlling interests 120 127
Net result 3,184 3,915
Adjustment of the EU 'IAS 39 carve out'    
Disclosure of operating segments [line items]    
Income 439 (1,065)
Taxation 120 (279)
Net result 319 (786)
Results IFRS-EU    
Disclosure of operating segments [line items]    
Income 12,107 11,339
Expenses 6,930 6,846
Taxation 1,554 1,237
Non-controlling interests 120 127
Net result € 3,503 € 3,130