Subordinated liabilities - Disclosure of undated and dated subordinated liabilities (Details) - GBP (£) £ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Subordinated liabilities [abstract] | ||
| Undated subordinated liabilities | £ 127 | £ 134 |
| Dated subordinated liabilities | 45,699 | 42,278 |
| Total subordinated liabilities | £ 45,826 | £ 42,412 |