Statement Of Changes In Equity [Abstract]
| Concept |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||
| Statement of changes in equity [line items] | ||||||||||||
| Increase (decrease) through transactions with owners, equity |
125,600,000
GBP
|
200,000
GBP
|
1,200,000
GBP
|
200,000
GBP
|
126,800,000
GBP
|
–
GBP
|
267,700,000
GBP
|
–
GBP
|
400,000
GBP
|
267,700,000
GBP
|
400,000
GBP
|
–
GBP
|