Statement Of Financial Position [Abstract]
| Concept |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment |
1,000,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
896 .4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
1,52 8. 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
1, 3 9 5 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill |
8, 453. 4
GBP
|
— | — | — | — | — | — | — | — | — | — |
7,612,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill |
1, 4 51 .9
GBP
|
— | — | — | — | — | — | — | — | — | — |
1 , 3 5 9. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method |
3 05 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
41 2 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current receivables |
218,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
152 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
32 2 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
341 . 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets, non-current |
74 . 1
GBP
|
— | — | — | — | — | — | — | — | — | — |
46,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets |
13,7 24.2
GBP
|
— | — | — | — | — | — | — | — | — | — |
12,5 35.2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Trade and other current receivables |
1 2 , 4 9 9. 7
GBP
|
— | — | — | — | — | — | — | — | — | — |
11, 3 62. 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets, current |
1 0 7. 1
GBP
|
— | — | — | — | — | — | — | — | — | — |
90. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
2 , 491 . 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
3 , 8 8 2 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current assets |
15,09 8. 3
GBP
|
— | — | — | — | — | — | — | — | — | — |
15, 33 5.6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital |
1 1 4 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
12 2.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
3,75 9 .7
GBP
|
— | — | — | — | — | — | — | — | — | — |
4 , 3 67. 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Share premium |
575 .9
GBP
|
— | — | — | — | — | — | — | — | — | — |
5 74 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares |
1 ,0 5 4 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
1,1 1 2 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
285,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
3 3 5 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
3,68 0.8
GBP
|
— | — | — | — | — | — | — | — | — | — |
3,6 16.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
4 7 9. 6
GBP
|
— | — | — | — | — | — | — | — | — | — |
4 52 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
4 ,1 60 . 4
GBP
|
285,200,000
GBP
|
4 7 9. 6
GBP
|
575 .9
GBP
|
3,75 9 .7
GBP
|
1 ,0 5 4 .1
GBP
|
1 14 .1
GBP
|
3,6 80.8
GBP
|
1 ,11 2 .1
GBP
|
4 , 3 67. 3
GBP
|
3 3 5.9
GBP
|
4 , 0 6 9. 0
GBP
|
3,61 6.4
GBP
|
5 74 . 7
GBP
|
4 52. 6
GBP
|
122. 4
GBP
|
570. 3
GBP
|
4 ,9 5 9. 2
GBP
|
3 1 8 .1
GBP
|
1 2 9. 6
GBP
|
4,732. 0
GBP
|
191. 2
GBP
|
1 ,1 1 8 . 3
GBP
|
5, 0 5 0 .1
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Trade and other non-current payables |
4 90 .9
GBP
|
— | — | — | — | — | — | — | — | — | — |
619,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities |
3 50 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — |
312. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
6 ,9 5 3 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — |
7, 3 1 6 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Trade and other current payables |
15,83 4 . 9
GBP
|
— | — | — | — | — | — | — | — | — | — |
15,252. 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current |
4 22 .0
GBP
|
— | — | — | — | — | — | — | — | — | — |
38 6. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities |
17 ,708.3
GBP
|
— | — | — | — | — | — | — | — | — | — |
16 ,485.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |