Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2022-11-01 to 2023-10-31 |
2022-11-01 to 2023-10-31 |
2022-11-01 to 2023-10-31 |
2021-11-01 to 2022-10-31 |
2021-11-01 to 2022-10-31 |
2021-11-01 to 2022-10-31 |
|---|---|---|---|---|---|---|
| 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] | ||||||
| Tax expense (income) |
10,200,000
GBP
|
3,800,000
GBP
|
6,400,000
GBP
|
3,500,000
GBP
|
4,600,000
GBP
|
1,100,000
GBP
|