Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
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As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2022-04-24 |
As at 2021-04-25 |
As at 2021-04-25 |
As at 2021-04-25 |
As at 2021-04-25 |
As at 2021-04-25 |
As at 2021-04-25 |
As at 2021-04-25 |
As at 2021-04-25 |
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As at 2021-04-25 |
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| Disclosure of fair value measurement [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 |
874,300,000
GBP
|
1,658,200,000
GBP
|
1,618,200,000
GBP
|
40,000,000
GBP
|
2,275,500,000
GBP
|
47,400,000
GBP
|
64,100,000
GBP
|
33,100,000
GBP
|
644,200,000
GBP
|
66,800,000
GBP
|
965,200,000
GBP
|
1,308,600,000
GBP
|
66,800,000
GBP
|
35,600,000
GBP
|
874,300,000
GBP
|
923,900,000
GBP
|
488,900,000
GBP
|
14,100,000
GBP
|
1,778,100,000
GBP
|
64,100,000
GBP
|
1,286,600,000
GBP
|
22,000,000
GBP
|
874,300,000
GBP
|
66,700,000
GBP
|
18,100,000
GBP
|
64,100,000
GBP
|
28,800,000
GBP
|
967,700,000
GBP
|
1,211,000,000
GBP
|
1,300,000
GBP
|
295,700,000
GBP
|
1,554,500,000
GBP
|
1,192,900,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |