Accounting policies - Consolidated statement of cash flows (Details) - EUR (€) € in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure Of Accounting Policies [Abstract] | |||
| Interest received | € 109,840 | € 117,046 | € 101,029 |
| Interest paid | € 57,737 | € 61,091 | € 50,954 |