Disclosure Of Income Tax [Text Block]
| Concept |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
2020-04-01 to 2021-03-31 |
As at 2020-03-31 |
|---|---|---|---|---|---|
| Disclosure of income tax [text block] | — | — | — | — | — |
| Major components of tax expense (income) [abstract] | |||||
| Tax expense (income) |
14,400,000
GBP
|
— | — |
8,000,000
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 |
64,200,000
GBP
|
— | — |
8 4.7
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 | — |
47,000,000
GBP
|
129,700,000
GBP
|
— |
69,400,000
GBP
|
| Deferred tax liabilities | — |
9,600,000
GBP
|
7,700,000
GBP
|
— |
33,700,000
GBP
|
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |