Analysis Of Income And Expense [Abstract]
| Concept |
2021-12-27 to 2022-12-25 |
2021-12-27 to 2022-12-25 |
2021-12-27 to 2022-12-25 |
2021-12-27 to 2022-12-25 |
2021-12-27 to 2022-12-25 |
2021-12-27 to 2022-12-25 |
2021-12-27 to 2022-12-25 |
2021-12-27 to 2022-12-25 |
2021-12-27 to 2022-12-25 |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||
| Revenue |
—
GBP
|
600 .3
GBP
|
600,300,000
GBP
|
— | — | — | — | — | — |
560,800,000
GBP
|
— | — | — | — | — |
—
GBP
|
560,800,000
GBP
|
— |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method |
—
GBP
|
6 .6
GBP
|
6,600,000
GBP
|
— | — | — | — | — | — |
11 .0
GBP
|
— | — | — | — | — |
—
GBP
|
1 1.0
GBP
|
— |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||
| Comprehensive income | — | — |
8 3 .1
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
81,600,000
GBP
|
1,500,000
GBP
|
8 7. 0
GBP
|
78,300,000
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
8,700,000
GBP
|
— | — |
—
GBP
|