Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2021-05-01 |
As at 2021-05-01 |
As at 2021-05-01 |
As at 2021-05-01 |
As at 2021-05-01 |
As at 2020-05-02 |
As at 2020-05-02 |
As at 2020-05-02 |
As at 2020-05-02 |
As at 2020-05-02 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — |
6,837,000,000
GBP
|
— | — | — | — | — |
6 ,880
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 | — | — |
4 ,366
GBP
|
— | — | — | — | — |
4,499,000,000
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 |
1,000,000
GBP
|
1 ,0 06
GBP
|
2 , 47 1
GBP
|
79 9
GBP
|
2 , 26 3
GBP
|
2 , 26 3
GBP
|
1,000,000
GBP
|
76 4
GBP
|
2 , 3 81
GBP
|
881,000,000
GBP
|
2 , 26 3
GBP
|
7 75
GBP
|
1,000,000
GBP
|
791,000,000
GBP
|
2 , 280
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |