Credit related Commitments and Contingent Liabilities (Detail: Text Values) - EUR (€) € in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Credit related Commitments and Contingent Liabilities [Abstract] | ||
| Other irrevocable commitments and other contingent liabilities without considering collateral or provisions | € 73 | € 77 |