Analysis Of Income And Expense [Abstract]
| Concept |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||
| Material income and expense [abstract] | ||||||||
| Investment income | — |
44,500,000
GBP
|
— | — |
103,500,000
GBP
|
— | — | — |
| Selling, general and administrative expense [abstract] | ||||||||
| General and administrative expense | — |
29,000,000
GBP
|
— | — |
29,800,000
GBP
|
— | — | — |
| Revenue and other operating income | — |
91,700,000
GBP
|
— | — |
53,700,000
GBP
|
— | — | — |
| Operating expense | — |
85,800,000
GBP
|
— | — |
57,500,000
GBP
|
— | — | — |
| Fee and commission income (expense) [abstract] | ||||||||
| Fee and commission income [abstract] | ||||||||
| Fee and commission income | — |
45,700,000
GBP
|
— | — |
48,800,000
GBP
|
— | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income |
5,700,000
GBP
|
5,700,000
GBP
|
-
GBP
|
-
GBP
|
3,600,000
GBP
|
-
GBP
|
-
GBP
|
3,600,000
GBP
|