Statement Of Cash Flows [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operations |
2 , 3 5 5 .1
GBP
|
— |
52 8.8
GBP
|
— | — |
| Income taxes paid (refund), classified as operating activities |
1 1 9. 4
GBP
|
— |
1 03 . 6
GBP
|
— | — |
| Cash flows from (used in) operating activities |
2 ,23 5.7
GBP
|
— |
42 5. 2
GBP
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Interest received, classified as investing activities |
36,700,000
GBP
|
— |
2 2.6
GBP
|
— | — |
| Cash flows from (used in) investing activities |
2 9. 3
GBP
|
— |
3 01. 2
GBP
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from issuing shares |
800,000
GBP
|
— |
1,400,000
GBP
|
— | — |
| Payments to acquire or redeem entity's shares |
90,600,000
GBP
|
— |
1 5 2 .4
GBP
|
— | — |
| Proceeds from borrowings, classified as financing activities |
1,736,500,000
GBP
|
— |
1,328. 6
GBP
|
— | — |
| Repayments of borrowings, classified as financing activities |
2 , 716 .8
GBP
|
— |
1,430,300,000
GBP
|
— | — |
| Payments of lease liabilities, classified as financing activities |
1 .9
GBP
|
— |
2 .0
GBP
|
— | — |
| Dividends paid, classified as financing activities |
126,400,000
GBP
|
— |
1 85.0
GBP
|
— | — |
| Cash flows from (used in) financing activities |
1 ,4 8 9. 0
GBP
|
— |
6 54 .1
GBP
|
— | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes |
7 1 7. 4
GBP
|
— |
53 0.1
GBP
|
— | — |
| Cash and cash equivalents | — |
3,231,400,000
GBP
|
— |
2 ,514. 0
GBP
|
3 , 0 4 4.1
GBP
|