Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2022-10-01 to 2023-09-30 |
2021-10-01 to 2022-09-30 |
|---|---|---|
| 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] | ||
| Investment income |
907,000,000
GBP
|
1,600,000,000
GBP
|
| Administrative expenses |
940,000,000
GBP
|
1,334,000,000
GBP
|
| Tax expense (income) |
655,000,000
GBP
|
886,000,000
GBP
|