Financial assets - Schedule of collaterals received for financial assets (Details) - Financial assets at amortised cost - EUR (€) € in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Disclosure of financial assets that are either past due or impaired [line items] | ||
| Real collaterals value | € 673,085 | € 604,281 |
| Other collaterals value | 102,125 | 100,726 |
| Total value of the collaterals received | 775,210 | 705,007 |
| Credit impaired | Impaired assets | ||
| Disclosure of financial assets that are either past due or impaired [line items] | ||
| Real collaterals value | 11,857 | 11,072 |
| Other collaterals value | € 2,218 | € 1,809 |