Statement Of Changes In Equity [Abstract]
| Concept |
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 |
|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||
| Statement of changes in equity [line items] | ||||
| Dividends recognised as distributions to non-controlling interests | — |
5,000,000
GBP
|
— |
5,000,000
GBP
|
| Increase (decrease) through acquisition of subsidiary, equity | — |
31,000,000
GBP
|
— |
-
GBP
|
| Decrease (increase) through tax on share-based payment transactions, equity |
13,000,000
GBP
|
— |
2,000,000
GBP
|
— |