Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2021-06-27 to 2022-07-02 |
2020-06-28 to 2021-06-26 |
|---|---|---|
| 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 |
591,700,000.0
GBP
|
522,500,000.0
GBP
|
| Tax expense (income) |
41,600,000.0
GBP
|
28,900,000.0
GBP
|