Analysis Of Income And Expense [Abstract]
| Concept |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||
| Material income and expense [abstract] | ||||||||||
| Rental income | — | — | — | — |
138,000,000
GBP
|
— | — | — | — |
126,500,000
GBP
|
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||
| Comprehensive income |
400,000
GBP
|
–
GBP
|
–
GBP
|
119,200,000
GBP
|
118,800,000
GBP
|
–
GBP
|
155,900,000
GBP
|
–
GBP
|
–
GBP
|
155,900,000
GBP
|