Financial assets at fair value through the income statement - Disclosure of financial assets designated at fair value (Details) - GBP (£) £ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of financial assets [line items] | ||
| Reverse repurchase agreements and other similar secured lending | £ 17,662 | £ 3,393 |
| Other financial assets | 624 | 665 |
| Financial assets at fair value through profit or loss | 185,002 | 191,845 |
| Financial assets designated at fair value | ||
| Disclosure of financial assets [line items] | ||
| Loans and advances | 785 | 1,039 |
| Debt securities | 303 | 182 |
| Other financial assets | 0 | 0 |
| Financial assets at fair value through profit or loss | 1,088 | 1,221 |
| Financial assets mandatorily at fair value | ||
| Disclosure of financial assets [line items] | ||
| Loans and advances | 46,100 | 43,143 |
| Debt securities | 2,818 | 2,749 |
| Equity securities | 2,336 | 2,856 |
| Reverse repurchase agreements and other similar secured lending | 132,600 | 141,791 |
| Other financial assets | 60 | 85 |
| Financial assets at fair value through profit or loss | £ 183,914 | £ 190,624 |