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 |
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 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||
| Increase (decrease) through exercise of options, equity |
–
GBP
|
2. 8
GBP
|
–
GBP
|
–
GBP
|
0. 8
GBP
|
–
GBP
|
–
GBP
|
2,000,000
GBP
|
–
GBP
|
1 .0
GBP
|
–
GBP
|
–
GBP
|
0. 9
GBP
|
–
GBP
|
–
GBP
|
0. 1
GBP
|
–
GBP
|
–
GBP
|
| Decrease (increase) through tax on share-based payment transactions, equity |
–
GBP
|
–
GBP
|
0. 1
GBP
|
–
GBP
|
0. 1
GBP
|
–
GBP
|
0. 1
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
0 .3
GBP
|
–
GBP
|
–
GBP
|
0. 3
GBP
|
–
GBP
|
0 .3
GBP
|
–
GBP
|
–
GBP
|
| Purchase of treasury shares |
–
GBP
|
13. 2
GBP
|
13. 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
13. 2
GBP
|
–
GBP
|
–
GBP
|
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