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 |
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 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 |
As at 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — | — | — |
10,664,000,000
GBP
|
— |
10,966,000,000
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 | — | — | — | — | — | — | — |
4,217,000,000
GBP
|
— |
3,894,000,000
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 |
23,000,000
GBP
|
6,402,000,000
GBP
|
5,980,000,000
GBP
|
45,000,000
GBP
|
319,000,000
GBP
|
80,000,000
GBP
|
— |
6,447,000,000
GBP
|
7,005,000,000
GBP
|
7,072,000,000
GBP
|
318,000,000
GBP
|
80,000,000
GBP
|
67,000,000
GBP
|
6,594,000,000
GBP
|
13,000,000
GBP
|
7,917,000,000
GBP
|
80,000,000
GBP
|
317,000,000
GBP
|
7,511,000,000
GBP
|
7,991,000,000
GBP
|
74,000,000
GBP
|
9,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |