Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2021-04-01 to 2022-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | |||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
300,700,000
GBP
|
–
GBP
|
–
GBP
|
300,700,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
267,400,000
GBP
|
267,400,000
GBP
|
–
GBP
|
267,400,000
GBP
|
| Other comprehensive income [abstract] | |||||||||||||
| Other comprehensive income | — | — | — | — | — |
–
GBP
|
— | — | — | — |
–
GBP
|
— | — |
| Comprehensive income |
–
GBP
|
–
GBP
|
300,700,000
GBP
|
–
GBP
|
–
GBP
|
300,700,000
GBP
|
— | — | — |
267,400,000
GBP
|
267,400,000
GBP
|
— |
267,400,000
GBP
|