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] | ||||||
| Other expense, by function |
25,200,000
GBP
|
395,800,000
GBP
|
421,000,000
GBP
|
15,900,000
GBP
|
373,600,000
GBP
|
389,500,000
GBP
|
| Tax expense (income) |
4,900,000
GBP
|
4,300,000
GBP
|
600,000
GBP
|
5,300,000
GBP
|
3,600,000
GBP
|
8,900,000
GBP
|