Disclosure Of Fair Value Measurement [Text Block]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 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 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of fair value measurement [text block] |
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [abstract] | |||||||||||||||||||||||||
| Disclosure of fair value measurement of assets [line items] | |||||||||||||||||||||||||
| Assets | — |
1,189,000,000
GBP
|
— | — | — | — | — | — | — |
1,171,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | |||||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of liabilities [abstract] | |||||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [line items] | |||||||||||||||||||||||||
| Liabilities | — |
687,100,000
GBP
|
— | — | — | — | — | — | — |
725,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, liabilities [abstract] | |||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of equity [abstract] | |||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [line items] | |||||||||||||||||||||||||
| Equity | — |
501,900,000
GBP
|
503. 2
GBP
|
2. 3
GBP
|
22,500,000
GBP
|
23,400,000
GBP
|
32,000,000
GBP
|
36,700,000
GBP
|
200,000
GBP
|
445,200,000
GBP
|
22,500,000
GBP
|
2,300,000
GBP
|
476,000,000
GBP
|
43,300,000
GBP
|
23,400,000
GBP
|
9,200,000
GBP
|
100,000
GBP
|
46,600,000
GBP
|
441,500,000
GBP
|
2,300,000
GBP
|
22,500,000
GBP
|
367,100,000
GBP
|
1,600,000
GBP
|
32,600,000
GBP
|
23,400,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |