Transfers of financial assets - Narrative (Details) - Securitisations - Finance lease receivables - GBP (£) £ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| TRANSFERS OF FINANCIAL ASSETS (Details) - Schedule of Transfered Assets and Liabilities [Line Items] | ||
| Original assets before transfer | £ 1,250 | |
| Assets that entity continues to recognise to extent of continuing involvement | 344 | £ 798 |
| Associated liabilities that entity continues to recognise to extent of continuing involvement | £ 344 | £ 798 |