Statement Of Financial Position [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
4,843,000,000
GBP
|
3 ,6 35
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — |
1, 755
GBP
|
1 , 3 11
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Investment property | — | — | — | — | — | — |
38,000,000
GBP
|
57,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — |
13,297,000,000
GBP
|
11 , 3 8 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — |
2, 965
GBP
|
713,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — | — | — | — |
823,000,000
GBP
|
8 32
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets | — | — | — | — | — | — |
17 6
GBP
|
16 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
315,000,000
GBP
|
609,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
3, 378
GBP
|
4, 067
GBP
|
— | — | — | — | — | — |
3 ,1 0 7
GBP
|
— | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
3 8 ,1 4 2
GBP
|
32 ,0 6 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
80,000,000
GBP
|
81,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
3,8 36
GBP
|
2, 822
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — |
1, 2 53
GBP
|
1, 2 5 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — | — |
6, 4 47
GBP
|
6, 4 03
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
11, 6 1 6
GBP
|
10 , 55 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
161,000,000
GBP
|
16 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
3, 836
GBP
|
1, 2 53
GBP
|
80,000,000
GBP
|
161,000,000
GBP
|
11 , 6 1 6
GBP
|
6 , 4 47
GBP
|
1 1 ,777
GBP
|
10,723,000,000
GBP
|
2, 822
GBP
|
6 , 4 03
GBP
|
16 4
GBP
|
1, 2 5 3
GBP
|
81,000,000
GBP
|
10, 559
GBP
|
11, 4 0 0
GBP
|
6 , 9 51
GBP
|
18 5
GBP
|
1, 2 5 2
GBP
|
2, 93 0
GBP
|
82,000,000
GBP
|
11 , 2 1 5
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||
| Current tax liabilities | — | — | — | — | — | — |
55,000,000
GBP
|
28 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — |
14,000,000
GBP
|
10,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — |
26 , 3 65
GBP
|
2 1, 3 4 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |