Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2025-03-27 |
As at 2025-03-27 |
As at 2025-03-27 |
As at 2025-03-27 |
As at 2025-03-27 |
2024-03-29 to 2025-03-27 |
As at 2025-03-27 |
As at 2025-03-27 |
As at 2025-03-27 |
As at 2024-03-28 |
As at 2024-03-28 |
As at 2024-03-28 |
As at 2024-03-28 |
As at 2024-03-28 |
As at 2024-03-28 |
As at 2024-03-28 |
As at 2024-03-28 |
As at 2023-03-30 |
As at 2023-03-30 |
As at 2023-03-30 |
As at 2023-03-30 |
As at 2023-03-30 |
As at 2023-03-30 |
As at 2023-03-30 |
As at 2023-03-30 |
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| 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 | — | — | — | — | — | — | — | — |
1,656,800,000
GBP
|
1,683 .8
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 | — | — | — | — | — | — | — | — |
66 3 . 6
GBP
|
695,300,000
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, 248. 2
GBP
|
0. 4
GBP
|
4,600,000
GBP
|
113. 3
GBP
|
37 2 .0
GBP
|
— |
0 .1
GBP
|
1 . 2
GBP
|
993. 2
GBP
|
98 8. 5
GBP
|
0. 5
GBP
|
113. 3
GBP
|
0. 3
GBP
|
100,000
GBP
|
372 .0
GBP
|
4,700,000
GBP
|
1 ,242 .8
GBP
|
4,800,000
GBP
|
113 . 3
GBP
|
37 2 .0
GBP
|
1 ,02 5.1
GBP
|
100,000
GBP
|
1 . 6
GBP
|
1, 280.5
GBP
|
200,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |