Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||
| Decrease (increase) through tax on share-based payment transactions, equity |
–
GBP
|
4,500,000
GBP
|
–
GBP
|
–
GBP
|
4,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
7. 4
GBP
|
–
GBP
|
7. 4
GBP
|
–
GBP
|
–
GBP
|
| Increase (decrease) through transactions with owners, equity |
1. 2
GBP
|
2 2 6 .1
GBP
|
300,000
GBP
|
–
GBP
|
8 6 . 3
GBP
|
7. 9
GBP
|
–
GBP
|
1 4 9 . 2
GBP
|
–
GBP
|
200,000
GBP
|
0 .7
GBP
|
9 6 .5
GBP
|
1 .1
GBP
|
8 8 . 2
GBP
|
8 . 9
GBP
|
–
GBP
|
| Purchase of treasury shares |
–
GBP
|
1 4 9 . 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1 4 9 . 2
GBP
|
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