Disclosure Of Income Tax [Text Block]
| Concept |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
As at 2022-04-30 |
2020-05-01 to 2021-04-30 |
As at 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of income tax [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Major components of tax expense (income) [abstract] | ||||||||||||||||||||||||
| Tax expense (income) | — |
2,000,000
GBP
|
100,000,000
GBP
|
— | — | — | — | — | — | — |
98,000,000
GBP
|
— | — | — | — | — |
16,000,000
GBP
|
65,000,000
GBP
|
49,000,000
GBP
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||||||||||
| Income tax relating to components of other comprehensive income |
–
GBP
|
— | — |
–
GBP
|
14,000,000
GBP
|
176,000,000
GBP
|
–
GBP
|
–
GBP
|
1,000,000
GBP
|
163,000,000
GBP
|
176,000,000
GBP
|
— |
–
GBP
|
— |
1,000,000
GBP
|
20,000,000
GBP
|
— | — |
26,000,000
GBP
|
5,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
26,000,000
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 | — | — | — | — | — | — | — | — | — | — | — |
7,000,000
GBP
|
— |
37,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — | — | — | — | — | — |
396,000,000
GBP
|
— |
271,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in deferred tax liability (asset) [abstract] | ||||||||||||||||||||||||
| Changes in deferred tax liability (asset) [abstract] | ||||||||||||||||||||||||
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |