Disclosure Of Income Tax [Text Block]
| Concept |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
|---|---|---|---|---|
| Disclosure of income tax [text block] | — |
.
|
— | — |
| Major components of tax expense (income) [abstract] | ||||
| Tax expense (income) | — |
39,500,000
GBP
|
14,400,000
GBP
|
— |
| Income tax relating to components of other comprehensive income [abstract] | ||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — |
100,800,000
GBP
|
64,200,000
GBP
|
— |
| Disclosure of temporary difference, unused tax losses and unused tax credits [text block] | — | — | — | — |
| Disclosure of temporary difference, unused tax losses and unused tax credits [abstract] | ||||
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||||
| Deferred tax assets and liabilities [abstract] | ||||
| Deferred tax assets |
112,200,000
GBP
|
— | — |
47,400,000
GBP
|
| Deferred tax liabilities |
7,000,000
GBP
|
— | — |
9,600,000
GBP
|
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |