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] | ||||||||||||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — |
896. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
7 9 0 .9
GBP
|
— | — | — | — | — | — | — | — | — |
8 76 . 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — |
1 , 3 95 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1, 504 .5
GBP
|
— | — | — | — | — | — | — | — | — |
1,734,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — |
7 ,6 12.3
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
7,388,800,000
GBP
|
— | — | — | — | — | — | — | — | — |
10, 110.6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
1 , 3 5 9. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1 , 3 8 9. 3
GBP
|
— | — | — | — | — | — | — | — | — |
1,4 68.8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — |
41 2 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
3 30. 7
GBP
|
— | — | — | — | — | — | — | — | — |
813 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
3 41 . 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
2 1 2 .9
GBP
|
— | — | — | — | — | — | — | — | — |
1 8 7. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
3, 8 82 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1 2 , 8 9 9.1
GBP
|
— | — | — | — | — | — | — | — | — |
11, 30 5.7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Issued capital | — | — | — |
122 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1 2 9. 6
GBP
|
— | — | — | — | — | — | — | — | — |
132,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
4 , 3 6 7. 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
4 ,9 5 9. 2
GBP
|
— | — | — | — | — | — | — | — | — |
8 , 5 76 . 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — |
574 . 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
570 . 3
GBP
|
— | — | — | — | — | — | — | — | — |
5 70. 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — |
1,1 1 2 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1 ,1 1 8 . 3
GBP
|
— | — | — | — | — | — | — | — | — |
1 ,17 8 . 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — |
3 3 5 . 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
19 1.2
GBP
|
— | — | — | — | — | — | — | — | — |
1 74 . 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — |
3, 616 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
4,732,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
7 ,925. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — |
4 52 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
31 8 .1
GBP
|
— | — | — | — | — | — | — | — | — |
3 71.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
1 ,1 12 .1
GBP
|
4 , 3 6 7. 3
GBP
|
3 3 5 .9
GBP
|
4 , 0 6 9. 0
GBP
|
3 ,61 6 . 4
GBP
|
4 52. 6
GBP
|
5 74 . 7
GBP
|
122. 4
GBP
|
4 , 9 5 9. 2
GBP
|
31 8 .1
GBP
|
4 ,7 32 .0
GBP
|
1 2 9. 6
GBP
|
1 ,11 8 . 3
GBP
|
191,200,000
GBP
|
570. 3
GBP
|
5 ,0 5 0 .1
GBP
|
8, 415 . 8
GBP
|
132 . 8
GBP
|
371. 4
GBP
|
8,0 44 . 4
GBP
|
−
GBP
|
174. 7
GBP
|
7, 9 2 5 . 9
GBP
|
37 1. 4
GBP
|
−
GBP
|
8 , 2 9 7. 3
GBP
|
5 70. 3
GBP
|
118. 5
GBP
|
113. 7
GBP
|
8,576,200,000
GBP
|
−
GBP
|
11 8. 5
GBP
|
1 6 9.9
GBP
|
4 . 8
GBP
|
1 ,178. 7
GBP
|
1,178,700,000
GBP
|
−
GBP
|
132. 8
GBP
|
570 . 3
GBP
|
8 , 6 8 9. 9
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — |
312 . 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
3 0 4 .1
GBP
|
— | — | — | — | — | — | — | — | — |
3 7 9. 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — |
1 70. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |