Analysis Of Income And Expense [Abstract]
| Concept |
2022-01-02 to 2022-12-31 |
2022-01-02 to 2022-12-31 |
2022-01-02 to 2022-12-31 |
2022-01-02 to 2022-12-31 |
2022-01-02 to 2022-12-31 |
2021-01-03 to 2022-01-01 |
2021-01-03 to 2022-01-01 |
2021-01-03 to 2022-01-01 |
2021-01-03 to 2022-01-01 |
2021-01-03 to 2022-01-01 |
|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||
| Revenue [abstract] | ||||||||||
| Revenue | — |
1,512,800,000
GBP
|
— | — | — |
1,2 29 .7
GBP
|
— | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||
| Comprehensive income |
–
GBP
|
122 .8
GBP
|
–
GBP
|
–
GBP
|
122 .8
GBP
|
1 22 .9
GBP
|
12 2.9
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|