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 |
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 |
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| Statement of changes in equity [abstract] | ||||||||||||
| Statement of changes in equity [line items] | ||||||||||||
| Purchase of treasury shares |
–
GBP
|
1 ,1 1 2
GBP
|
1 ,1 1 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4 , 9 41
GBP
|
–
GBP
|
–
GBP
|
4 , 9 41
GBP
|
–
GBP
|
–
GBP
|