Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
|---|---|---|---|---|---|---|
| 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 |
73. 3
GBP
|
1 4.6
GBP
|
58,700,000
GBP
|
10 .3
GBP
|
52,900,000
GBP
|
63 . 2
GBP
|
| Tax expense (income) |
2 0.6
GBP
|
0. 3
GBP
|
20. 3
GBP
|
2,100,000
GBP
|
1 7. 0
GBP
|
14,900,000
GBP
|