Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2021-10-01 to 2022-09-30 |
2020-10-01 to 2021-09-30 |
|---|---|---|
| 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 |
12,600,000
GBP
|
10,900,000
GBP
|
| Other expense, by function |
20,000,000
GBP
|
16,900,000
GBP
|
| Tax expense (income) |
104,300,000
GBP
|
49,200,000
GBP
|