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 | — |
726,300,000
GBP
|
— | — | — | — | — | — | — | — |
767,800,000
GBP
|
— | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||
| Interest expense | — |
70. 4
GBP
|
— | — | — | — | — | — | — | — |
76. 9
GBP
|
— | — | — | — | — |
| Miscellaneous other operating expense | — |
135,100,000
GBP
|
— | — | — | — | — | — | — | — |
12 8.7
GBP
|
— | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||||
| Impairment loss (reversal of impairment loss) recognised in profit or loss | — |
127,500,000
GBP
|
— | — | — | — | — | — | — | — |
16 9.4
GBP
|
— | — | — | — | — |
| Expenses, by nature | — |
513,600,000
GBP
|
— | — | — | — | — | — | — | — |
51 4.5
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 |
–
GBP
|
57,300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
57,300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
22,800,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
22. 8
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 | — |
500,000
GBP
|
— | — | — | — | — | — | — | — |
1. 0
GBP
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — |
100,000
GBP
|
— | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income |
–
GBP
|
600,000
GBP
|
–
GBP
|
–
GBP
|
100,000
GBP
|
–
GBP
|
–
GBP
|
500,000
GBP
|
–
GBP
|
–
GBP
|
1. 0
GBP
|
–
GBP
|
–
GBP
|
1. 0
GBP
|
–
GBP
|
–
GBP
|
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
–
GBP
|
1,800,000
GBP
|
–
GBP
|
–
GBP
|
300,000
GBP
|
57,300,000
GBP
|
–
GBP
|
59,400,000
GBP
|
–
GBP
|
–
GBP
|
73. 8
GBP
|
–
GBP
|
100,000
GBP
|
50,900,000
GBP
|
–
GBP
|
22,800,000
GBP
|