Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2022-10-01 to 2023-09-30 |
2021-10-01 to 2022-09-30 |
|---|---|---|
| Statement of changes in net assets available for benefits [abstract] | ||
| Reconciliation of changes in net assets available for benefits [abstract] | ||
| Changes in net assets available for benefits [abstract] | ||
| Other income |
11,500,000
GBP
|
12,600,000
GBP
|
| Other expense, by function |
21,800,000
GBP
|
20,000,000
GBP
|
| Tax expense (income) |
46,000,000
GBP
|
104,300,000
GBP
|