Statement Of Cash Flows [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||
| Cash flows from (used in) operating activities [abstract] | ||||
| Income taxes paid (refund), classified as operating activities |
173,600,000
GBP
|
— |
181. 4
GBP
|
— |
| Cash flows from (used in) operating activities |
951,600,000
GBP
|
— |
733,100,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | ||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities |
49,900,000
GBP
|
— |
–
GBP
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities |
243,600,000
GBP
|
— |
436. 7
GBP
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities |
1,000,000
GBP
|
— |
2,700,000
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities |
46,700,000
GBP
|
— |
32. 7
GBP
|
— |
| Interest received, classified as investing activities |
16,200,000
GBP
|
— |
8,700,000
GBP
|
— |
| Cash flows from (used in) investing activities |
223,200,000
GBP
|
— |
458. 0
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | ||||
| Payments to acquire or redeem entity's shares |
74,000,000
GBP
|
— |
34. 2
GBP
|
— |
| Proceeds from borrowings, classified as financing activities |
346,400,000
GBP
|
— |
14,500,000
GBP
|
— |
| Repayments of borrowings, classified as financing activities |
131,800,000
GBP
|
— |
134. 9
GBP
|
— |
| Payments of lease liabilities, classified as financing activities |
175,100,000
GBP
|
— |
158,900,000
GBP
|
— |
| Dividends paid, classified as financing activities |
190,500,000
GBP
|
— |
180. 4
GBP
|
— |
| Interest paid, classified as financing activities |
61,900,000
GBP
|
— |
43. 5
GBP
|
— |
| Cash flows from (used in) financing activities |
331,000,000
GBP
|
— |
458. 7
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes |
397,400,000
GBP
|
— |
183,600,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||
| Effect of exchange rate changes on cash and cash equivalents |
55,400,000
GBP
|
— |
20. 8
GBP
|
— |
| Cash and cash equivalents | — |
1,504,000,000
GBP
|
— |
776 .9
GBP
|