Statement Of Changes In Equity [Abstract]
| Concept |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
2022-10-02 to 2023-09-30 |
2022-10-02 to 2023-09-30 |
2022-10-02 to 2023-09-30 |
2022-10-02 to 2023-09-30 |
2022-10-02 to 2023-09-30 |
2022-10-02 to 2023-09-30 |
2022-10-02 to 2023-09-30 |
2022-10-02 to 2023-09-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||
| Decrease (increase) through tax on share-based payment transactions, equity |
−
GBP
|
0 .1
GBP
|
−
GBP
|
−
GBP
|
−
GBP
|
0 .1
GBP
|
−
GBP
|
−
GBP
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through transactions with owners, equity |
−
GBP
|
15 . 0
GBP
|
11 . 7
GBP
|
−
GBP
|
400,000
GBP
|
3,700,000
GBP
|
−
GBP
|
−
GBP
|
0. 3
GBP
|
–
GBP
|
–
GBP
|
5. 8
GBP
|
–
GBP
|
4. 2
GBP
|
1. 9
GBP
|
–
GBP
|
| Sale or issue of treasury shares |
−
GBP
|
0. 4
GBP
|
−
GBP
|
−
GBP
|
400,000
GBP
|
−
GBP
|
−
GBP
|
−
GBP
|
300,000
GBP
|
–
GBP
|
–
GBP
|
0 .3
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|