Debt securities in issue - Narrative (Details) £ in Millions |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2025
GBP (£)
programme
|
Dec. 31, 2024
GBP (£)
|
|
| DEBT SECURITIES IN ISSUE (Details) - Schedule of Debt Securities in Issue [Line Items] | ||
| Number of covered bond programmes | programme | 2 | |
| Voluntary financial or other support to repurchase assets | £ 0 | £ 0 |
| Securitisation programmes | ||
| DEBT SECURITIES IN ISSUE (Details) - Schedule of Debt Securities in Issue [Line Items] | ||
| Cash deposits held restricted in use to securitisation and covered bonds | 3,359 | 3,256 |
| Maximum exposure to loss from interests in structured entities | 11 | 11 |
| Securitisation programmes | Securities lending | ||
| DEBT SECURITIES IN ISSUE (Details) - Schedule of Debt Securities in Issue [Line Items] | ||
| Senior unsecured notes issued | 27,766 | 27,657 |
| Net covered bond programmes | Covered bond programme | Securities lending | ||
| DEBT SECURITIES IN ISSUE (Details) - Schedule of Debt Securities in Issue [Line Items] | ||
| Senior unsecured notes issued | £ 22,072 | £ 26,202 |