Report of Directors Financial Review Risk Report - Collateral and other credit enhancements (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Commercial real estate loans and advances including loan commitments | |
| Disclosure of financial assets [line items] | |
| Independent review of Valuation, minimum term | 3 years |
| Mortgage Portfolio | UK | Mortgages | |
| Disclosure of financial assets [line items] | |
| Actual Loan To Value Ratio | 69.00% |
| Expected Loan to Value Ratio | 55.00% |
| Mortgage Portfolio | Hong Kong | Mortgages | |
| Disclosure of financial assets [line items] | |
| Actual Loan To Value Ratio | 70.00% |
| Expected Loan to Value Ratio | 60.00% |