Customer deposits - Additional Information (Details) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of customer deposits [line items] | ||
| Current accounts / Overnight deposits | € 238,940 | € 227,827 |
| Savings accounts | 382,066 | 354,560 |
| Time deposits | 98,599 | 107,695 |
| Private Individuals | ||
| Disclosure of customer deposits [line items] | ||
| Current accounts / Overnight deposits | 113,586 | 107,068 |
| Savings accounts | 347,234 | 324,135 |
| Time deposits | € 50,033 | € 56,599 |