Analysis Of Income And Expense [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||
| Revenue [abstract] | ||||||||||||||||
| Revenue | — | — |
1,327,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1,1 63 .0
GBP
|
— |
| Material income and expense [abstract] | ||||||||||||||||
| Sales and marketing expense | — | — |
2 33 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
222,200,000
GBP
|
— |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — |
4 . 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
0 .7
GBP
|
— |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
0. 3
GBP
|
— |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
400,000
GBP
|
–
GBP
|
434,400,000
GBP
|
–
GBP
|
–
GBP
|
414 . 2
GBP
|
19. 8
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1 .6
GBP
|
–
GBP
|
3 1.8
GBP
|
–
GBP
|
3 12. 5
GBP
|
345 .9
GBP
|