Debt securities in issue - Narrative (Details) - GBP (£) £ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Covered bond programme | ||
| Schedule of Securitisation and Covered Bond Programmes [Line Items] | ||
| Instruments providing security for bonds | £ 33,936 | £ 22,072 |
| Restricted cash deposits | 3,734 | 3,359 |
| Securitisation programme | ||
| Schedule of Securitisation and Covered Bond Programmes [Line Items] | ||
| Instruments providing security for notes | £ 29,918 | £ 27,766 |