Analysis Of Income And Expense [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 |
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 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||
| Revenue [abstract] | ||||||||||||||||
| Revenue | — |
1,628,100,000
GBP
|
— | — |
–
GBP
|
1,628,100,000
GBP
|
— | — | — |
1,694,500,000
GBP
|
— |
1,694,500,000
GBP
|
–
GBP
|
— | — | — |
| Material income and expense [abstract] | ||||||||||||||||
| Operating expense excluding cost of sales | — |
5 06 .4
GBP
|
— | — |
52,200,000
GBP
|
454,200,000
GBP
|
— | — | — |
48 2.5
GBP
|
— |
410,000,000
GBP
|
72 .5
GBP
|
— | — | — |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations | — |
90,300,000
GBP
|
— | — | — | — | — | — | — |
58,400,000
GBP
|
— | — | — | — | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — |
3,900,000
GBP
|
— | — | — | — | — | — | — |
5,500,000
GBP
|
— | — | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
900,000
GBP
|
80,900,000
GBP
|
–
GBP
|
–
GBP
|
— | — |
90,100,000
GBP
|
170,100,000
GBP
|
–
GBP
|
76,600,000
GBP
|
100,000
GBP
|
— | — |
153 .2
GBP
|
–
GBP
|
76,700,000
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent | — |
80,000,000
GBP
|
— | — | — | — | — | — | — |
76,500,000
GBP
|
— | — | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — |
900,000
GBP
|
— | — | — | — | — | — | — |
100,000
GBP
|
— | — | — | — | — | — |