Subordinated liabilities - Disclosure of subordinated liabilities (Details) - GBP (£) £ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of detailed information about borrowings [line items] | |||
| Subordinated liabilities, opening balance | £ 41,875 | £ 35,903 | |
| Issuances | 9,808 | 11,222 | £ 5,986 |
| Redemptions | (5,665) | (5,067) | |
| Other | (779) | (183) | |
| Subordinated liabilities, closing balance | 45,239 | 41,875 | £ 35,903 |
| Total subordinated liabilities | 45,826 | 42,412 | |
| At fair value | |||
| Disclosure of detailed information about borrowings [line items] | |||
| Subordinated liabilities, opening balance | 537 | ||
| Subordinated liabilities, closing balance | £ 587 | £ 537 | |