Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
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 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 | — | — | — | — | — |
606 .3
GBP
|
— | — | — | — | — | — | — |
572,000,000
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 | — | — | — | — | — |
24 0.6
GBP
|
— | — | — | — | — | — | — |
2 28.0
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 |
0. 2
GBP
|
292 .6
GBP
|
62 .6
GBP
|
2,900,000
GBP
|
— |
365,700,000
GBP
|
7. 4
GBP
|
3 44.0
GBP
|
62 .6
GBP
|
2,900,000
GBP
|
265,400,000
GBP
|
12 .9
GBP
|
0. 2
GBP
|
3 4 4.0
GBP
|
24 3 . 2
GBP
|
0. 2
GBP
|
316 .4
GBP
|
2,900,000
GBP
|
62. 5
GBP
|
7. 6
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |