Related party transactions - Narrative (Details) - GBP (£) £ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Disclosure of transactions between related parties [line items] | ||
| Fee and commission expense | £ 688 | £ 597 |
| Balances and transactions with Lloyds Banking Group plc and fellow subsidiaries of the Bank | Lloyds Banking Group plc | ||
| Disclosure of transactions between related parties [line items] | ||
| Interest income on other financial assets | 25 | 9 |
| Interest expense on other financial liabilities | 750 | 643 |
| Balances and transactions with Lloyds Banking Group plc and fellow subsidiaries of the Bank | Scottish Widows | ||
| Disclosure of transactions between related parties [line items] | ||
| Fee and commission expense | £ 52 | £ 47 |