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 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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — |
3 5 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
3 9. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
8 .4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — |
5,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
2, 736.7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
2, 370 .6
GBP
|
— | — | — | — | — | — | — | — | — |
2, 102.8
GBP
|
— | — | — | — | — |
| Assets | — | — | — | — | — |
24,531,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
22,654,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — |
4. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,359 .8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — |
3 , 2 15 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,608,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — |
700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — |
1,1 9 5.9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1, 351.5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — |
2 ,02 4.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 , 61 6.9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
60,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
3 .5
GBP
|
–
GBP
|
3,215. 1
GBP
|
150,000,000
GBP
|
1 ,355 .3
GBP
|
2,024,400,000
GBP
|
600,000
GBP
|
700,000
GBP
|
1 3.4
GBP
|
1 .1
GBP
|
4,500,000
GBP
|
–
GBP
|
1,355,300,000
GBP
|
1,608,600,000
GBP
|
60,000,000
GBP
|
1,359 .8
GBP
|
4,000,000
GBP
|
1,000,000
GBP
|
–
GBP
|
7. 8
GBP
|
1,6 7 6. 9
GBP
|
–
GBP
|
1,000,000
GBP
|
–
GBP
|
60,000,000
GBP
|
12,800,000
GBP
|
–
GBP
|
1,000,000
GBP
|
6,500,000
GBP
|
8 64.2
GBP
|
1 , 4 7 7. 0
GBP
|
553. 2
GBP
|
500,000
GBP
|
5,600,000
GBP
|
3,700,000
GBP
|
4,500,000
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||||||||
| Provisions [abstract] | ||||||||||||||||||||||||||||||||||||
| Other provisions | — | — | — | — | — |
2 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities | — | — | — | — | — |
1,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — |
3 9. 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
48,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — |
22,507 .5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
20,977,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — |
24,531. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
22,654,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |