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 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 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 |
As at 2022-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Current tax assets | — | — | — | — | — | — | — | — | — |
506,000,000
GBP
|
490,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — | — | — | — |
29,181,000,000
GBP
|
36,781,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
42,871,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
46,715,000,000
GBP
|
— | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — | — | — | — |
259,944,000,000
GBP
|
275,448,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — | — | — | — |
3,105,000,000
GBP
|
3,105,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — | — | — | — |
3,521,000,000
GBP
|
4,295,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — | — | — | — |
5,620,000,000
GBP
|
5,620,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other equity interest | — | — | — | — | — | — | — | — | — |
1,860,000,000
GBP
|
1,956,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — | — | — | — | — |
333,000,000
GBP
|
353,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
3,521,000,000
GBP
|
5,620,000,000
GBP
|
3,105,000,000
GBP
|
—
GBP
|
1,000,000
GBP
|
13,773,000,000
GBP
|
317,000,000
GBP
|
1,860,000,000
GBP
|
17,000,000
GBP
|
13,773,000,000
GBP
|
14,623,000,000
GBP
|
4,295,000,000
GBP
|
—
GBP
|
5,620,000,000
GBP
|
3,105,000,000
GBP
|
1,000,000
GBP
|
14,623,000,000
GBP
|
6,000,000
GBP
|
348,000,000
GBP
|
1,956,000,000
GBP
|
14,407,000,000
GBP
|
—
GBP
|
5,620,000,000
GBP
|
4,848,000,000
GBP
|
3,105,000,000
GBP
|
1,000,000
GBP
|
14,407,000,000
GBP
|
1,956,000,000
GBP
|
5,000,000
GBP
|
1,128,000,000
GBP
|
5,053,000,000
GBP
|
2,191,000,000
GBP
|
16,102,000,000
GBP
|
107,000,000
GBP
|
25,000,000
GBP
|
16,102,000,000
GBP
|
5,620,000,000
GBP
|
—
GBP
|
1,000,000
GBP
|
3,105,000,000
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Provisions [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Provisions | — | — | — | — | — | — | — | — | — |
611,000,000
GBP
|
402,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — | — | — | — |
246,171,000,000
GBP
|
260,825,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — | — | — | — |
259,944,000,000
GBP
|
275,448,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |