Disclosure Of Income Tax [Text Block]
| Concept |
2022-01-01 to 2022-12-30 |
As at 2022-12-30 |
2022-01-01 to 2022-12-30 |
2022-01-01 to 2022-12-30 |
2022-01-01 to 2022-12-30 |
2022-01-01 to 2022-12-30 |
2022-01-01 to 2022-12-30 |
As at 2021-12-31 |
2020-12-26 to 2021-12-31 |
2020-12-26 to 2021-12-31 |
2020-12-26 to 2021-12-31 |
2020-12-26 to 2021-12-31 |
2020-12-26 to 2021-12-31 |
2020-12-26 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of income tax [text block] | — | — | — | — |
|
— | — | — | — | — | — | — | — | — |
| Major components of tax expense (income) [abstract] | ||||||||||||||
| Tax expense (income) | — | — | — | — |
53,400,000
GBP
|
— | — | — | — | — | — | — | — |
19,900,000
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 |
1,400,000
GBP
|
— |
–
GBP
|
–
GBP
|
1,400,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
3,900,000
GBP
|
–
GBP
|
–
GBP
|
3,900,000
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 | — |
56,800,000
GBP
|
— | — | — | — | — |
5,500,000
GBP
|
— | — | — | — | — | — |
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |