Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2021-07-31 |
As at 2021-07-31 |
As at 2021-07-31 |
As at 2021-07-31 |
As at 2021-07-31 |
As at 2021-07-31 |
As at 2020-07-31 |
As at 2020-07-31 |
As at 2020-07-31 |
As at 2020-07-31 |
As at 2020-07-31 |
As at 2020-07-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — |
4,985,100,000
GBP
|
— | — | — | — | — | — |
4,676,800,000
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 | — | — | — | — |
1,617 .3
GBP
|
— | — | — | — | — | — |
1,389,000,000
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 |
182,000,000
GBP
|
15,400,000
GBP
|
3, 148.9
GBP
|
20,000,000
GBP
|
3,367 .8
GBP
|
1,500,000
GBP
|
1,500,000
GBP
|
15,400,000
GBP
|
179,800,000
GBP
|
20,000,000
GBP
|
3,071,100,000
GBP
|
3,287 .8
GBP
|
2,778,700,000
GBP
|
20,000,000
GBP
|
1,500,000
GBP
|
15,400,000
GBP
|
178,400,000
GBP
|
2,994,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |