Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|
| 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] | ||
| Investment income |
8,634,000,000
GBP
|
14,009,000,000
GBP
|
| Other income |
37,000,000
GBP
|
70,000,000
GBP
|
| Administrative expenses |
2,241,000,000
GBP
|
2,255,000,000
GBP
|
| Tax expense (income) |
440,000,000
GBP
|
964,000,000
GBP
|