Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 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] | ||||||
| Tax expense (income) |
26,700,000
GBP
|
81,200,000
GBP
|
54,500,000
GBP
|
2,600,000
GBP
|
36,700,000
GBP
|
34,100,000
GBP
|