Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2025-03-31 |
As at 2025-03-31 |
2024-04-01 to 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
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 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 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 2023-03-31 |
As at 2023-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — |
26,056,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
21,641,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | |||||||||||||||||||||||||||||
| Changes in fair value measurement, assets [abstract] | |||||||||||||||||||||||||||||
| Gains (losses) recognised in profit or loss, fair value measurement, assets [abstract] | |||||||||||||||||||||||||||||
| Gains (losses) recognised in profit or loss on exchange differences, fair value measurement, assets | — | — |
245,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
238,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — |
1,445,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,471,000,000
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 |
35,000,000
GBP
|
24,611,000,000
GBP
|
— |
43,000,000
GBP
|
792,000,000
GBP
|
81,000,000
GBP
|
719,000,000
GBP
|
1,845,000,000
GBP
|
1,000,000
GBP
|
21,257,000,000
GBP
|
42,000,000
GBP
|
1,519,000,000
GBP
|
791,000,000
GBP
|
719,000,000
GBP
|
92,000,000
GBP
|
43,000,000
GBP
|
— |
20,170,000,000
GBP
|
6,000,000
GBP
|
17,154,000,000
GBP
|
31,000,000
GBP
|
16,844,000,000
GBP
|
790,000,000
GBP
|
719,000,000
GBP
|
108,000,000
GBP
|
43,000,000
GBP
|
1,327,000,000
GBP
|
14,044,000,000
GBP
|
2,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |