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 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
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 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||||||
| Property, plant and equipment | — | — |
2, 852
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2, 655
GBP
|
— | — | — | — | — | — | — |
| Right-of-use assets | — | — |
1,0 91
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1, 0 5 3
GBP
|
— | — | — | — | — | — | — |
| Investment property | — | — |
67,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
12 8
GBP
|
— | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — |
554,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
409,000,000
GBP
|
— | — | — | — | — | — | — |
| Deferred tax assets | — | — |
622,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
972,000,000
GBP
|
— | — | — | — | — | — | — |
| Other non-current financial assets | — | — |
305,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
24 8
GBP
|
— | — | — | — | — | — | — |
| Non-current assets | — | — |
18 , 317
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 8 ,12 4
GBP
|
— | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||||||
| Current inventories | — | — |
8 11
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
858,000,000
GBP
|
— | — | — | — | — | — | — |
| Other current financial assets | — | — |
19 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
18 9
GBP
|
— | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
2 , 9 17
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,76 8
GBP
|
— | — | — | — | — | — | — |
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
94,000,000
GBP
|
— | — | — | — | — | — | — |
| Current assets | — | — |
8 ,8 18
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
9,4 0 6
GBP
|
— | — | — | — | — | — | — |
| Assets | — | — |
2 7,1 3 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 7, 5 3 0
GBP
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||
| Issued capital | — | — |
85,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
87,000,000
GBP
|
— | — | — | — | — | — | — |
| Retained earnings | — | — |
212,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 ,6 1 6
GBP
|
— | — | — | — | — | — | — |
| Share premium | — | — |
1,252,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1, 2 4 9
GBP
|
— | — | — | — | — | — | — |
| Other reserves | — | — |
5,8 87
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
5 ,923
GBP
|
— | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — |
7, 4 3 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,6 43
GBP
|
— | — | — | — | — | — | — |
| Non-controlling interests | — | — |
232,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
278,000,000
GBP
|
— | — | — | — | — | — | — |
| Equity |
212,000,000
GBP
|
5, 887
GBP
|
7, 6 6 8
GBP
|
7, 4 3 6
GBP
|
232,000,000
GBP
|
1,252,000,000
GBP
|
85,000,000
GBP
|
87,000,000
GBP
|
4 , 921
GBP
|
2,6 1 6
GBP
|
5,923,000,000
GBP
|
1, 2 4 9
GBP
|
4, 643
GBP
|
278,000,000
GBP
|
2,6 1 6
GBP
|
278,000,000
GBP
|
4, 643
GBP
|
87,000,000
GBP
|
5,923,000,000
GBP
|
1, 2 4 9
GBP
|
4 , 921
GBP
|
87,000,000
GBP
|
2,0 8 5
GBP
|
5,5 1 1
GBP
|
6 ,1 5 6
GBP
|
10 4
GBP
|
1, 2 4 9
GBP
|
5, 4 07
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||||||
| Non-current provisions | — | — |
3 31
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
386,000,000
GBP
|
— | — | — | — | — | — | — |
| Deferred tax liabilities | — | — |
77,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — |
| Other non-current financial liabilities | — | — |
30 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
28 2
GBP
|
— | — | — | — | — | — | — |
| Non-current liabilities | — | — |
10 , 7 71
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
13 , 2 2 6
GBP
|
— | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||||||
| Current provisions | — | — |
276,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 9 1
GBP
|
— | — | — | — | — | — | — |
| Trade and other current payables | — | — |
4 , 63 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4, 8 9 8
GBP
|
— | — | — | — | — | — | — |
| Other current financial liabilities | — | — |
214,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
18 1
GBP
|
— | — | — | — | — | — | — |
| Current liabilities | — | — |
8, 696
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
9, 38 3
GBP
|
— | — | — | — | — | — | — |
| Liabilities | — | — |
19,4 67
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
22 ,609
GBP
|
— | — | — | — | — | — | — |