Statement Of Changes In Equity [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 |
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 changes in equity [abstract] | ||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||
| Purchase of treasury shares |
24,000,000
GBP
|
–
GBP
|
504,000,000
GBP
|
504,000,000
GBP
|
–
GBP
|
24,000,000
GBP
|
–
GBP
|
504,000,000
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Reduction of issued capital | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4,138,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4,138,000,000
GBP
|