Statement Of Financial Position [Abstract]
| Concept |
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 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — |
150. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
156 .0
GBP
|
— | — | — | — | — | — | — | — | — | — |
3 18 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — |
60. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
3 1.1
GBP
|
— | — | — | — | — | — | — | — | — | — |
50,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — |
631. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
5 7 7. 0
GBP
|
— | — | — | — | — | — | — | — | — | — |
646,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — |
169,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1 0 7. 8
GBP
|
— | — | — | — | — | — | — | — | — | — |
152. 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — |
21. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
16. 2
GBP
|
— | — | — | — | — | — | — | — | — | — |
9. 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — |
1,080. 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
9 2 7. 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
1 , 1 7 7. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Current inventories | — | — |
1 8 7. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
16 8. 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
1 9 7. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — |
315. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
293 . 3
GBP
|
— | — | — | — | — | — | — | — | — | — |
3 3 7. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
167 .8
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
222,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
213 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — |
10,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
17 8 .7
GBP
|
— | — | — | — | — | — | — | — | — | — |
18,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets | — | — |
688 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
8 6 8 .7
GBP
|
— | — | — | — | — | — | — | — | — | — |
77 2.0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — |
1,7 6 8 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1,7 9 6 . 2
GBP
|
— | — | — | — | — | — | — | — | — | — |
1,949 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Issued capital | — | — |
5 .8
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
6 .0
GBP
|
— | — | — | — | — | — | — | — | — | — |
6 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — |
9 5 7. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
8 82.6
GBP
|
— | — | — | — | — | — | — | — | — | — |
96 4.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — |
2 31.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
231 .4
GBP
|
— | — | — | — | — | — | — | — | — | — |
2 31.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
9 57. 5
GBP
|
0 .7
GBP
|
1,261. 3
GBP
|
3 . 5
GBP
|
3 .1
GBP
|
231,400,000
GBP
|
66. 2
GBP
|
5,800,000
GBP
|
882 .6
GBP
|
1 .9
GBP
|
6 .0
GBP
|
3 .1
GBP
|
9 8.0
GBP
|
231,400,000
GBP
|
1 , 2 1 9.7
GBP
|
0. 5
GBP
|
1, 321. 5
GBP
|
6,000,000
GBP
|
18 .9
GBP
|
18 .9
GBP
|
3 .1
GBP
|
–
GBP
|
98 .6
GBP
|
231,400,000
GBP
|
3 .1
GBP
|
1 , 302 .6
GBP
|
98,600,000
GBP
|
96 4.4
GBP
|
0. 5
GBP
|
2 31.4
GBP
|
1. 4
GBP
|
1 .4
GBP
|
–
GBP
|
983. 3
GBP
|
6,000,000
GBP
|
500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Non-current provisions | — | — |
4 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
3 .8
GBP
|
— | — | — | — | — | — | — | — | — | — |
5 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — |
2 3 . 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
5 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
8. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — |
11 3.1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1 84 . 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
207 .3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Current provisions | — | — |
1 7. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
24 .7
GBP
|
— | — | — | — | — | — | — | — | — | — |
2 7. 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — |
33 0. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
28 8. 3
GBP
|
— | — | — | — | — | — | — | — | — | — |
29 6 .8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
37. 3
GBP
|
— | — | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — |
393. 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
392. 0
GBP
|
— | — | — | — | — | — | — | — | — | — |
4 39 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — |
50 6 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
576 . 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
647,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |