Other operating expenses - Additional information (Details) - EUR (€) € in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Disclosure Of Other Operating Expense [Line Items] | ||
| Contributions to the Single and Local Resolution Funds | € 41 | € 35 |
| Increase (decrease) in local bank taxes | 7 | |
| Local bank taxes | 261 | 255 |
| Germany, Belgium, Poland | ||
| Disclosure Of Other Operating Expense [Line Items] | ||
| Contributions to the deposit guarantee schemes | € 136 | € 157 |