Borrowing facilities - Schedule of undrawn committed borrowing facilities (Details) - GBP (£) £ in Millions |
Mar. 31, 2024 |
Mar. 31, 2023 |
|---|---|---|
| Disclosure of detailed information about borrowings [line items] | ||
| Undrawn borrowing facilities | £ 7,905 | £ 6,503 |
| Less than 1 year | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Undrawn borrowing facilities | 0 | 42 |
| In 1 to 2 years | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Undrawn borrowing facilities | 0 | 4,361 |
| In 2 to 3 years | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Undrawn borrowing facilities | 195 | 2,100 |
| In 3 to 4 years | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Undrawn borrowing facilities | 5,859 | 0 |
| In 4 to 5 years | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Undrawn borrowing facilities | 106 | 0 |
| More than 5 years | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Undrawn borrowing facilities | £ 1,745 | £ 0 |