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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — |
2,707,500,000
GBP
|
— | — | — |
2,117,300,000
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 | — |
914,100,000
GBP
|
— | — | — |
742,400,000
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 |
8,500,000
GBP
|
1,793,400,000
GBP
|
2,100,000
GBP
|
61,800,000
GBP
|
1,721,000,000
GBP
|
1,374,900,000
GBP
|
61,300,000
GBP
|
5,100,000
GBP
|
2,100,000
GBP
|
1,306,400,000
GBP
|
958,400,000
GBP
|
60,600,000
GBP
|
2,100,000
GBP
|
14,500,000
GBP
|
1,035,600,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |