Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2023-03-31 |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — |
11,904,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
7,564,400,000
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 | — | — | — |
11,327,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
7,155,200,000
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 |
247,400,000
GBP
|
10,400,000
GBP
|
— |
576,900,000
GBP
|
10,200,000
GBP
|
357,800,000
GBP
|
8,000,000
GBP
|
3,200,000
GBP
|
23. 3
GBP
|
400,000
GBP
|
8,000,000
GBP
|
10,200,000
GBP
|
200,000
GBP
|
224,500,000
GBP
|
409,200,000
GBP
|
200,500,000
GBP
|
17,800,000
GBP
|
124,500,000
GBP
|
162,600,000
GBP
|
8,000,000
GBP
|
285,300,000
GBP
|
700,000
GBP
|
9,400,000
GBP
|
–
GBP
|
2,500,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |