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 |
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 |
As at 2024-12-31 |
As at 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 |
As at 2024-12-31 |
2023-01-01 to 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 |
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 |
As at 2023-12-31 |
2023-01-01 to 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||
| Equity | — | — | — |
3,200,000
GBP
|
513,400,000
GBP
|
— | — |
22,500,000
GBP
|
25,300,000
GBP
|
24,900,000
GBP
|
— | — | — |
22,500,000
GBP
|
100,000
GBP
|
466,300,000
GBP
|
— | — |
501,900,000
GBP
|
— | — |
503,200,000
GBP
|
2,300,000
GBP
|
22,500,000
GBP
|
— | — | — |
23. 4
GBP
|
32. 0
GBP
|
36,700,000
GBP
|
0. 2
GBP
|
— |
445,200,000
GBP
|
22,500,000
GBP
|
2,300,000
GBP
|
476,000,000
GBP
|
43. 3
GBP
|
23. 4
GBP
|
9,200,000
GBP
|
100,000
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
— | — | — |
60,900,000
GBP
|
60,900,000
GBP
|
–
GBP
|
— | — | — |
48. 0
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— | — | — |
48. 0
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Other comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
57,300,000
GBP
|
— | — | — |
1,500,000
GBP
|
59,100,000
GBP
|
300,000
GBP
|
— | — | — |
25. 8
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— | — | — |
2. 9
GBP
|
22,800,000
GBP
|
–
GBP
|
— | — | — | — |
100,000
GBP
|
— | — | — | — | — | — | — | — |
| Comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
57,300,000
GBP
|
— | — | — |
59,400,000
GBP
|
1,800,000
GBP
|
300,000
GBP
|
— | — | — |
73. 8
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— | — | — |
50,900,000
GBP
|
22,800,000
GBP
|
–
GBP
|
— | — | — | — |
100,000
GBP
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
— | — | — |
23. 9
GBP
|
23,900,000
GBP
|
–
GBP
|
— | — | — |
21. 5
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— | — | — |
2 1.5
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
— | — | — |
2,900,000
GBP
|
2,900,000
GBP
|
–
GBP
|
— | — | — |
4. 3
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— | — | — |
4. 3
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |