Note 28 Retained Earnings And Other Reserves (Details) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Disclosure of Retained earnings and other reserves [Line Items] | |||
| Statutory reserve | € 559 | € 565 | € 572 |
| Restricted reserves | 746 | 582 | 561 |
| Voluntary reserves | 10,529 | 6,470 | 5,478 |
| Total reserves holding company | 11,834 | 7,616 | 6,612 |
| Consolidation reserves attributed to the bank and subsidiary consolidated companies | 34,715 | 34,891 | 31,639 |
| Total retained earnings revaluation reserves and other reserves | € 46,550 | € 42,507 | € 38,251 |