Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|
| 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 |
88,900,000
GBP
|
81,700,000
GBP
|
7,200,000
GBP
|
91,200,000
GBP
|
11,800,000
GBP
|
79,400,000
GBP
|
| Tax expense (income) |
12,800,000
GBP
|
18,200,000
GBP
|
5,400,000
GBP
|
9,900,000
GBP
|
8,000,000
GBP
|
17,900,000
GBP
|