Other disclosures - Disclosure of leverage capital (Details) - EUR (€) € in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2025 |
Dec. 31, 2024 |
|
| Other Disclosures | ||
| Tier 1 capital (EUR million) | € 90,828 | € 90,170 |
| Exposure (EIR million) | € 1,850,859 | € 1,885,572 |
| Leverage ratio | 4.91% | 4.78% |