Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
|---|---|---|---|---|---|---|
| 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] | ||||||
| Other income |
25,000,000
GBP
|
2,000,000
GBP
|
23,000,000
GBP
|
26,000,000
GBP
|
1,000,000
GBP
|
25,000,000
GBP
|
| Administrative expenses |
990,000,000
GBP
|
8,000,000
GBP
|
98 2
GBP
|
880,000,000
GBP
|
12,000,000
GBP
|
868,000,000
GBP
|
| Tax expense (income) |
130,000,000
GBP
|
23,000,000
GBP
|
15 3
GBP
|
140,000,000
GBP
|
29,000,000
GBP
|
169,000,000
GBP
|