Statement Of Changes In Equity [Abstract]
| Concept |
2023-10-01 to 2024-09-28 |
As at 2024-09-28 |
2023-10-01 to 2024-09-28 |
As at 2024-09-28 |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
As at 2024-09-28 |
As at 2024-09-28 |
2023-10-01 to 2024-09-28 |
As at 2024-09-28 |
2023-10-01 to 2024-09-28 |
As at 2024-09-28 |
As at 2024-09-28 |
2023-10-01 to 2024-09-28 |
2023-10-01 to 2024-09-28 |
As at 2024-09-28 |
2023-10-01 to 2024-09-28 |
2022-10-02 to 2023-09-30 |
As at 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 |
As at 2023-09-30 |
As at 2023-09-30 |
2022-10-02 to 2023-09-30 |
2022-10-02 to 2023-09-30 |
As at 2023-09-30 |
As at 2023-09-30 |
As at 2023-09-30 |
As at 2023-09-30 |
As at 2023-09-30 |
As at 2022-10-01 |
As at 2022-10-01 |
As at 2022-10-01 |
As at 2022-10-01 |
As at 2022-10-01 |
As at 2022-10-01 |
As at 2022-10-01 |
As at 2022-10-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
48 .7
GBP
|
— |
334,000,000
GBP
|
— | — | — |
654,800,000
GBP
|
6,800,000
GBP
|
— |
15 . 3
GBP
|
— |
4 0 . 8
GBP
|
4 3 1.6
GBP
|
— | — |
11 0 . 2
GBP
|
— | — |
4 4 .4
GBP
|
— | — | — | — | — | — | — |
6 . 5
GBP
|
33 4 .0
GBP
|
— | — |
11 0 . 6
GBP
|
4 8. 7
GBP
|
412 .1
GBP
|
6 4 0 .1
GBP
|
6 .8
GBP
|
50,700,000
GBP
|
4 1 7. 1
GBP
|
6. 8
GBP
|
33 4 .0
GBP
|
4 8. 7
GBP
|
11 0 . 9
GBP
|
3 .1
GBP
|
6 4 8 .1
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
−
GBP
|
— |
−
GBP
|
— |
1 8.5
GBP
|
33,600,000
GBP
|
5 2 .1
GBP
|
— | — |
−
GBP
|
— |
18 . 5
GBP
|
— | — |
−
GBP
|
−
GBP
|
— |
−
GBP
|
–
GBP
|
— |
9. 3
GBP
|
–
GBP
|
32 .0
GBP
|
9. 3
GBP
|
–
GBP
|
41. 3
GBP
|
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — | — | — | — |
2 9. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
0. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
−
GBP
|
— |
−
GBP
|
— |
11. 0
GBP
|
— | — | — | — |
−
GBP
|
— |
23 . 8
GBP
|
— | — |
31. 2
GBP
|
3,600,000
GBP
|
— |
−
GBP
|
–
GBP
|
— |
15 . 4
GBP
|
6 .3
GBP
|
— |
9. 9
GBP
|
800,000
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
−
GBP
|
— |
−
GBP
|
— |
2,000,000
GBP
|
— | — | — | — |
−
GBP
|
— |
2,000,000
GBP
|
— | — |
−
GBP
|
−
GBP
|
— |
−
GBP
|
–
GBP
|
— |
400,000
GBP
|
–
GBP
|
— |
0. 4
GBP
|
–
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |