Statement Of Cash Flows [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operations | — |
571,000,000
GBP
|
— |
2 2 9. 0
GBP
|
— |
| Income taxes paid (refund), classified as operating activities | — |
142,500,000
GBP
|
— |
1 1 7. 3
GBP
|
— |
| Cash flows from (used in) operating activities | — |
428 .5
GBP
|
— |
34 6. 3
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Interest received, classified as investing activities | — |
7. 7
GBP
|
— |
1 .9
GBP
|
— |
| Cash flows from (used in) investing activities | — |
63. 2
GBP
|
— |
80,600,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments from changes in ownership interests in subsidiaries that do not result in loss of control | — |
–
GBP
|
— |
6 3 . 5
GBP
|
— |
| Proceeds from issuing shares | — |
1,700,000
GBP
|
— |
800,000
GBP
|
— |
| Payments to acquire or redeem entity's shares | — |
10 2 .0
GBP
|
— |
–
GBP
|
— |
| Proceeds from borrowings, classified as financing activities | — |
42 9. 5
GBP
|
— |
4 ,9 4 3 . 2
GBP
|
— |
| Repayments of borrowings, classified as financing activities | — |
3 24. 2
GBP
|
— |
4 , 2 9 5 .4
GBP
|
— |
| Payments of lease liabilities, classified as financing activities | — |
1 .9
GBP
|
— |
1 .9
GBP
|
— |
| Dividends paid, classified as financing activities | — |
1 3 3 .1
GBP
|
— |
86 .7
GBP
|
— |
| Interest paid, classified as financing activities | — |
45 . 3
GBP
|
— |
8 .4
GBP
|
— |
| Cash flows from (used in) financing activities | — |
18 4. 3
GBP
|
— |
6 31.8
GBP
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
3 0 7. 4
GBP
|
— |
3 6 6 .1
GBP
|
— |
| Cash and cash equivalents |
3 , 0 4 4 .1
GBP
|
— |
2 ,736.7
GBP
|
— |
2 , 370. 6
GBP
|