Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2022-01-01 to 2022-12-30 |
2020-12-26 to 2021-12-31 |
|---|---|---|
| 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 |
324,500,000
GBP
|
156,400,000
GBP
|
| Tax expense (income) |
53,400,000
GBP
|
19,900,000
GBP
|