Statement Of Changes In Equity [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — | — |
9,300,000
GBP
|
1,707,200,000
GBP
|
— |
2,192,600,000
GBP
|
— |
93,600,000
GBP
|
12,700,000
GBP
|
3,300,000
GBP
|
— | — | — | — | — | — |
1,900,000
GBP
|
6,600,000
GBP
|
143,900,000
GBP
|
— | — |
752,900,000
GBP
|
— |
923,100,000
GBP
|
— |
1,437,700,000
GBP
|
— |
9,300,000
GBP
|
— | — |
20,800,000
GBP
|
— |
2,094,500,000
GBP
|
— |
82,400,000
GBP
|
2,500,000
GBP
|
143,900,000
GBP
|
— |
800,000
GBP
|
6,600,000
GBP
|
— | — | — | — |
723,500,000
GBP
|
19,500,000
GBP
|
1,697,400,000
GBP
|
9,300,000
GBP
|
1,233,900,000
GBP
|
69,900,000
GBP
|
6,500,000
GBP
|
143,900,000
GBP
|
4,300,000
GBP
|
6,600,000
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
— | — | — |
323,500,000
GBP
|
–
GBP
|
323,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — |
33,600,000
GBP
|
289,900,000
GBP
|
— |
226,800,000
GBP
|
— |
–
GBP
|
— |
1,300,000
GBP
|
— |
228,100,000
GBP
|
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
158,800,000
GBP
|
68,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— |
800,000
GBP
|
— | — | — |
49,700,000
GBP
|
–
GBP
|
47,800,000
GBP
|
–
GBP
|
2,700,000
GBP
|
–
GBP
|
— | — | — | — | — | — |
7,600,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— |
100,000
GBP
|
–
GBP
|
— |
4,000,000
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
— | — |
–
GBP
|
3,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— |
800,000
GBP
|
— | — | — |
273,800,000
GBP
|
–
GBP
|
275,700,000
GBP
|
–
GBP
|
2,700,000
GBP
|
–
GBP
|
— | — | — | — | — | — |
234,400,000
GBP
|
— |
–
GBP
|
— |
1,300,000
GBP
|
— |
228,200,000
GBP
|
–
GBP
|
— |
4,000,000
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
— | — |
–
GBP
|
3,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Issue of equity |
11,100,000
GBP
|
98,100,000
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
–
GBP
|
109,200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — |
394,500,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
383,000,000
GBP
|
— |
–
GBP
|
— |
11,500,000
GBP
|
— | — | — |
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
— | — | — |
4,800,000
GBP
|
–
GBP
|
4,800,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — |
5,400,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— |
5,400,000
GBP
|
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |