Disclosure Of Fair Value Measurement [Text Block]
| Concept |
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2024-04-05 to 2025-03-31 |
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As at 2024-04-04 |
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As at 2023-04-04 |
As at 2023-04-04 |
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| Disclosure of fair value measurement [text block] | — | — | — | — | — | — | — | — |
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| 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 | — |
367,877,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
272,087,000,000
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 | — |
347,395,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
254,401,000,000
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 |
1,485,000,000
GBP
|
20,482,000,000
GBP
|
759,000,000
GBP
|
19,723,000,000
GBP
|
132,000,000
GBP
|
17,086,000,000
GBP
|
35,000,000
GBP
|
1,157,000,000
GBP
|
— |
53,000,000
GBP
|
119,000,000
GBP
|
15,119,000,000
GBP
|
36,000,000
GBP
|
1,336,000,000
GBP
|
51,000,000
GBP
|
38,000,000
GBP
|
127,000,000
GBP
|
17,686,000,000
GBP
|
1,157,000,000
GBP
|
17,686,000,000
GBP
|
-
GBP
|
38,000,000
GBP
|
176,000,000
GBP
|
16,906,000,000
GBP
|
-
GBP
|
16,906,000,000
GBP
|
1,233,000,000
GBP
|
1,336,000,000
GBP
|
47,000,000
GBP
|
14,000,000
GBP
|
14,184,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |