Memorandum items - Schedule of off-balance sheet funds managed by the entity and joint ventures (Details) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Disclosure of unconsolidated structured entities [line items] | |||
| Off-balance sheet assets managed by the entity and by joint ventures | € 257,432 | € 230,485 | € 209,737 |
| Investment funds | |||
| Disclosure of unconsolidated structured entities [line items] | |||
| Off-balance sheet assets managed by the entity and by joint ventures | 197,346 | 178,840 | 165,174 |
| Pension funds | |||
| Disclosure of unconsolidated structured entities [line items] | |||
| Off-balance sheet assets managed by the entity and by joint ventures | 16,112 | 15,646 | 14,831 |
| Assets under management | |||
| Disclosure of unconsolidated structured entities [line items] | |||
| Off-balance sheet assets managed by the entity and by joint ventures | € 43,974 | € 35,999 | € 29,732 |