Additional disclosures - Schedule of preferred shares and securities (Details) - Financial liabilities at amortised cost - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|---|---|
| Measurement of financial assets and liabilities and recognition of fair value changes | ||||
| Outstanding issue amount | € 29,287 | € 35,813 | € 30,912 | € 25,926 |
| Subordinated debt | ||||
| Measurement of financial assets and liabilities and recognition of fair value changes | ||||
| Outstanding issue amount | 10,304 | 10,032 | 9,283 | |
| Subordinated liabilities, preference shares | ||||
| Measurement of financial assets and liabilities and recognition of fair value changes | ||||
| Outstanding issue amount | 201 | 211 | 202 | |
| Subordinated liabilities, preferred securities | ||||
| Measurement of financial assets and liabilities and recognition of fair value changes | ||||
| Outstanding issue amount | € 10,103 | € 9,821 | € 9,081 |