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 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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — |
355,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
389,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — |
76,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
71,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current receivables | — | — | — |
2,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
156,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
106,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — |
500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
1,974,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1,905,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||||||||
| Current inventories | — | — | — |
196,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
207,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — |
243,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
177,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other current financial assets | — | — | — |
7,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
14,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
418,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
489,400,000
GBP
|
— | — | — | — | — | — |
107,900,000
GBP
|
— | — | — | — | — |
| Current assets | — | — | — |
867,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
889,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — |
2,842,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
2,794,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||
| Issued capital | — | — | — |
11,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
11,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
662,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
5 03.1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — |
1,123,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1,108,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — |
641,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
787,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — |
18,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
16,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
6,600,000
GBP
|
662,400,000
GBP
|
9,300,000
GBP
|
660,400,000
GBP
|
6,700,000
GBP
|
143,900,000
GBP
|
1,123,400,000
GBP
|
18,600,000
GBP
|
2,700,000
GBP
|
11,600,000
GBP
|
503,100,000
GBP
|
16,300,000
GBP
|
10,900,000
GBP
|
11,500,000
GBP
|
144,000,000
GBP
|
400,000
GBP
|
1,108,200,000
GBP
|
804,100,000
GBP
|
6,600,000
GBP
|
9,300,000
GBP
|
14,100,000
GBP
|
400,000
GBP
|
6,600,000
GBP
|
352,300,000
GBP
|
329,600,000
GBP
|
–
GBP
|
4 2.8
GBP
|
–
GBP
|
2,300,000
GBP
|
2,100,000
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||||||||
| Non-current provisions | — | — | — |
19,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
16,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current payables | — | — | — |
9,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
7,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — |
800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
1,276,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1,182,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||||||||
| Current provisions | — | — | — |
19,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
22,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — |
721,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
578,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other current financial liabilities | — | — | — |
34,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
83,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
905,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
808,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — |
2,182,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1,990,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |