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 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 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 |
As at 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — |
23 7
GBP
|
— | — | — | — | — | — |
263,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current receivables | — | — | — | — | — |
81,000,000
GBP
|
— | — | — | — | — | — |
62,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — |
7,000,000
GBP
|
— | — | — | — | — | — |
6,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — |
2,020,000,000
GBP
|
— | — | — | — | — | — |
2,142,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — |
682,000,000
GBP
|
— | — | — | — | — | — |
630,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
427,000,000
GBP
|
— | — | — | — | — | — |
340,000,000
GBP
|
— | — | — | — | — |
348,000,000
GBP
|
— | — | — | — | — | — | — | — |
| Current assets | — | — | — | — | — |
2,16 6
GBP
|
— | — | — | — | — | — |
2,049,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — |
394,000,000
GBP
|
— | — | — | — | — | — |
406,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — |
923,000,000
GBP
|
— | — | — | — | — | — |
91 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — |
174,000,000
GBP
|
— | — | — | — | — | — |
174,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — |
1,808,000,000
GBP
|
— | — | — | — | — | — |
1,786,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — |
24,000,000
GBP
|
— | — | — | — | — | — |
42,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
923,000,000
GBP
|
174,000,000
GBP
|
394,000,000
GBP
|
24,000,000
GBP
|
1,808,000,000
GBP
|
1,832,000,000
GBP
|
7,000,000
GBP
|
79,000,000
GBP
|
245,000,000
GBP
|
211,000,000
GBP
|
2,000,000
GBP
|
78,000,000
GBP
|
1,828,000,000
GBP
|
919,000,000
GBP
|
42,000,000
GBP
|
174,000,000
GBP
|
406,000,000
GBP
|
1,786,000,000
GBP
|
1,876,000,000
GBP
|
54,000,000
GBP
|
174,000,000
GBP
|
928,000,000
GBP
|
403,000,000
GBP
|
1,822,000,000
GBP
|
107,000,000
GBP
|
211,000,000
GBP
|
1,000,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||||||||
| Non-current provisions | — | — | — | — | — |
12,000,000
GBP
|
— | — | — | — | — | — |
17,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — |
92,000,000
GBP
|
— | — | — | — | — | — |
5 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — |
1,0 25
GBP
|
— | — | — | — | — | — |
1,040,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||||||||
| Current provisions | — | — | — | — | — |
134,000,000
GBP
|
— | — | — | — | — | — |
137,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — | — |
899,000,000
GBP
|
— | — | — | — | — | — |
950,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — |
1,329,000,000
GBP
|
— | — | — | — | — | — |
1 ,323
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |