Statement Of Changes In Equity [Abstract]
| Concept |
2021-01-31 to 2022-01-29 |
2021-01-31 to 2022-01-29 |
2021-01-31 to 2022-01-29 |
2021-01-31 to 2022-01-29 |
2021-01-31 to 2022-01-29 |
2021-01-31 to 2022-01-29 |
2021-01-31 to 2022-01-29 |
2021-01-31 to 2022-01-29 |
2021-01-31 to 2022-01-29 |
2021-01-31 to 2022-01-29 |
2020-01-26 to 2021-01-30 |
2020-01-26 to 2021-01-30 |
2020-01-26 to 2021-01-30 |
2020-01-26 to 2021-01-30 |
2020-01-26 to 2021-01-30 |
2020-01-26 to 2021-01-30 |
2020-01-26 to 2021-01-30 |
2020-01-26 to 2021-01-30 |
2020-01-26 to 2021-01-30 |
2020-01-26 to 2021-01-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||
| Increase (decrease) through exercise of options, equity |
19,900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
19,900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
16,700,000
GBP
|
–
GBP
|
16,700,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|