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 |
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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of fair value measurement [text block] | — | — | — | — | — |
Derivatives
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — |
2,898,400,000
GBP
|
— | — |
2,544,000,000
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 | — | — | — | — | — | — |
1,465,500,000
GBP
|
— | — |
1,199,100,000
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 |
108,300,000
GBP
|
1,432,300,000
GBP
|
1,038,900,000
GBP
|
600,000
GBP
|
1,800,000
GBP
|
— |
1,432,900,000
GBP
|
286,900,000
GBP
|
1,344,200,000
GBP
|
1,344,900,000
GBP
|
2,200,000
GBP
|
700,000
GBP
|
954,300,000
GBP
|
283,300,000
GBP
|
108,800,000
GBP
|
3,000,000
GBP
|
1,108,500,000
GBP
|
772,800,000
GBP
|
–
GBP
|
278,500,000
GBP
|
60,200,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |