Marketable debt securities - Disclosure of information on liabilities secured by financial assets (Details) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Marketable debt securities | |||
| Liabilities secured by mortgage-backed bonds | € 22,624 | ||
| Marketable debt securities | |||
| Marketable debt securities | |||
| Liabilities secured by asset-backed securities | 55,031 | € 49,723 | € 37,717 |
| Liabilities secured by mortgage-backed securities | 5,961 | 4,377 | 3,019 |
| Liabilities secured by other mortgage securities | 51,438 | 50,141 | 49,478 |
| Liabilities secured by mortgage-backed bonds | 22,624 | 22,631 | 24,619 |
| Liabilities secured by territorial covered bond | 1,728 | 995 | 764 |
| Liabilities secured by financial assets | € 108,197 | € 100,859 | € 87,959 |