Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2021-01-31 to 2022-01-29 |
2020-01-26 to 2021-01-30 |
|---|---|---|
| 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 |
380,200,000
GBP
|
246,800,000
GBP
|
| Tax expense (income) |
145,600,000
GBP
|
55,700,000
GBP
|