Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||
| Profit (loss) | — | — | — |
972,600,000
GBP
|
— | — | — |
449,400,000
GBP
|
— | — |
| Comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
972,600,000
GBP
|
972,600,000
GBP
|
449,400,000
GBP
|
–
GBP
|
449,400,000
GBP
|
–
GBP
|
–
GBP
|