Statement Of Comprehensive Income [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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
527,700,000
GBP
|
528,600,000
GBP
|
900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
44,000,000
GBP
|
483,700,000
GBP
|
–
GBP
|
–
GBP
|
2,300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
40,200,000
GBP
|
229,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
189,300,000
GBP
|
191,600,000
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||||||||
| Other comprehensive income |
–
GBP
|
6,500,000
GBP
|
5,100,000
GBP
|
–
GBP
|
2,400,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
3,800,000
GBP
|
–
GBP
|
–
GBP
|
4,200,000
GBP
|
–
GBP
|
— | — |
–
GBP
|
2,300,000
GBP
|
–
GBP
|
–
GBP
|
7,700,000
GBP
|
9,600,000
GBP
|
| Comprehensive income |
–
GBP
|
521,200,000
GBP
|
523,500,000
GBP
|
900,000
GBP
|
2,400,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
3,800,000
GBP
|
2,300,000
GBP
|
–
GBP
|
4,200,000
GBP
|
–
GBP
|
— | — |
–
GBP
|
2,300,000
GBP
|
–
GBP
|
–
GBP
|
181,600,000
GBP
|
182,000,000
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — |
522,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
183,900,000
GBP
|
— |
| Comprehensive income, attributable to non-controlling interests | — |
900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,300,000
GBP
|
— |