Segmental analysis - Balance sheet by business (Details) - GBP (£) £ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of operating segments [line items] | ||
| Loans and advances to customers | £ 78,881 | £ 82,666 |
| Customer accounts | 229,804 | 242,303 |
| CIB | ||
| Disclosure of operating segments [line items] | ||
| Loans and advances to customers | 62,389 | 60,788 |
| Customer accounts | 188,422 | 201,418 |
| IWPB | ||
| Disclosure of operating segments [line items] | ||
| Loans and advances to customers | 16,447 | 16,293 |
| Customer accounts | 41,345 | 40,852 |
| Corporate Centre | ||
| Disclosure of operating segments [line items] | ||
| Loans and advances to customers | 45 | 5,585 |
| Customer accounts | £ 37 | £ 33 |