Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
|---|---|---|---|---|---|---|
| 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] | ||||||
| Administrative expenses |
11 .6
GBP
|
4 2 . 2
GBP
|
53 .8
GBP
|
8,800,000
GBP
|
34 . 5
GBP
|
4 3 . 3
GBP
|
| Tax expense (income) |
2 .7
GBP
|
11 . 7
GBP
|
9,000,000
GBP
|
400,000
GBP
|
10. 8
GBP
|
10 .4
GBP
|