Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2020-12-27 |
As at 2020-12-27 |
As at 2020-12-27 |
As at 2020-12-27 |
As at 2020-12-27 |
As at 2020-12-27 |
As at 2020-12-27 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — |
520 .7
GBP
|
— | — | — | — |
522,000,000
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 | — | — | — | — | — |
633 .5
GBP
|
— | — | — | — |
580 . 6
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 |
9,000,000
GBP
|
500,000
GBP
|
2,200,000
GBP
|
4 9.6
GBP
|
0. 5
GBP
|
112,800,000
GBP
|
1 56 .6
GBP
|
2,300,000
GBP
|
105. 4
GBP
|
1,000,000
GBP
|
58,600,000
GBP
|
4 9.6
GBP
|
4,600,000
GBP
|
0. 5
GBP
|
8,800,000
GBP
|
2 .4
GBP
|
4 9.6
GBP
|
48,200,000
GBP
|
9. 7
GBP
|
3. 4
GBP
|
0. 5
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |