Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2022-10-31 |
As at 2022-10-31 |
As at 2022-10-31 |
As at 2022-10-31 |
As at 2022-10-31 |
As at 2022-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — |
620,100,000
GBP
|
— | — | — | — |
531,500,000
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 | — |
202,000,000
GBP
|
— | — | — | — |
178,700,000
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 |
7,500,000
GBP
|
418,100,000
GBP
|
2,800,000
GBP
|
307,700,000
GBP
|
87,200,000
GBP
|
12,900,000
GBP
|
352,800,000
GBP
|
27,100,000
GBP
|
2,800,000
GBP
|
307,100,000
GBP
|
900,000
GBP
|
27,100,000
GBP
|
—
GBP
|
12,900,000
GBP
|
307,100,000
GBP
|
2,800,000
GBP
|
12,900,000
GBP
|
57,100,000
GBP
|
352,800,000
GBP
|
56,200,000
GBP
|
2,800,000
GBP
|
1,000,000
GBP
|
18,900,000
GBP
|
28,000,000
GBP
|
306,700,000
GBP
|
12,900,000
GBP
|
2,900,000
GBP
|
329,600,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |