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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — |
15,653,400,000
GBP
|
14,527,200,000
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 | — | — | — | — | — |
13,597,300,000
GBP
|
12,018,500,000
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 |
311,100,000
GBP
|
1,242,300,000
GBP
|
2,900,000
GBP
|
499,800,000
GBP
|
— |
2,056,100,000
GBP
|
2,508,700,000
GBP
|
2,900,000
GBP
|
499,800,000
GBP
|
1,652,600,000
GBP
|
353,400,000
GBP
|
499,800,000
GBP
|
2,900,000
GBP
|
2,038,500,000
GBP
|
2,957,400,000
GBP
|
416,200,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |