Statement Of Changes In Equity [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
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| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — | — | — | — |
209,800,000
GBP
|
164 .9
GBP
|
— |
15 4 . 9
GBP
|
0 .1
GBP
|
2 2 . 9
GBP
|
— | — |
5 7 7. 4
GBP
|
— |
7 0 .7
GBP
|
5 7 7. 5
GBP
|
— |
6 .1
GBP
|
8 91.9
GBP
|
–
GBP
|
— |
5 0 8 . 9
GBP
|
— |
–
GBP
|
80 .4
GBP
|
— |
4. 5
GBP
|
— | — |
14 5 . 9
GBP
|
0 .1
GBP
|
–
GBP
|
— |
8 91.8
GBP
|
— |
–
GBP
|
16 2 .7
GBP
|
4. 5
GBP
|
–
GBP
|
4. 5
GBP
|
8 91.9
GBP
|
8 8 5 . 2
GBP
|
–
GBP
|
8 5 0 .0
GBP
|
–
GBP
|
–
GBP
|
14 2 . 0
GBP
|
5 . 9
GBP
|
3 5 .1
GBP
|
3 5 .1
GBP
|
2,600,000
GBP
|
–
GBP
|
2. 6
GBP
|
175 . 2
GBP
|
–
GBP
|
2. 6
GBP
|
–
GBP
|
–
GBP
|
0 .1
GBP
|
–
GBP
|
47 8 . 4
GBP
|
–
GBP
|
8 5 0 .1
GBP
|
3 5 .1
GBP
|
–
GBP
|
4 8 . 5
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
3 0 6 . 9
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— | — | — |
3 0 6 . 9
GBP
|
–
GBP
|
— |
3 0 6. 9
GBP
|
— | — |
14 . 3
GBP
|
— | — | — |
14 . 3
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
— |
14 . 3
GBP
|
–
GBP
|
— | — | — |
–
GBP
|
— |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
–
GBP
|
16 . 8
GBP
|
–
GBP
|
–
GBP
|
— | — |
16 . 8
GBP
|
— | — | — |
–
GBP
|
–
GBP
|
— |
16 . 8
GBP
|
— | — |
5 4.6
GBP
|
— | — | — |
54,600,000
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
–
GBP
|
— | — | — |
54,600,000
GBP
|
— |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
–
GBP
|
3 23. 7
GBP
|
–
GBP
|
–
GBP
|
— | — |
16 . 8
GBP
|
— | — | — |
3 0 6 . 9
GBP
|
–
GBP
|
— |
323. 7
GBP
|
— | — |
6 8 . 9
GBP
|
— | — | — |
6 8. 9
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
— |
14 . 3
GBP
|
–
GBP
|
— | — | — |
5 4. 6
GBP
|
— |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
94,900,000
GBP
|
400,000
GBP
|
9. 0
GBP
|
8 4 . 5
GBP
|
— | — |
–
GBP
|
— | — | — |
1 .8
GBP
|
–
GBP
|
— |
0. 4
GBP
|
— | — |
6 2.7
GBP
|
— | — | — |
6 2.7
GBP
|
— |
15 .7
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
74 . 5
GBP
|
— | — | — |
–
GBP
|
— |
3 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
0. 9
GBP
|
6. 9
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— | — | — |
6 .0
GBP
|
–
GBP
|
— |
6,900,000
GBP
|
— | — |
10 . 3
GBP
|
— | — | — |
10 . 3
GBP
|
— |
600,000
GBP
|
— | — |
–
GBP
|
— |
9 .7
GBP
|
–
GBP
|
— | — | — |
–
GBP
|
— |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |