Statement Of Cash Flows [Abstract]
| Concept |
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 |
|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||
| Cash flows from (used in) financing activities [abstract] | ||||
| Dividends paid to non-controlling interests, classified as financing activities | — |
21,000,000
GBP
|
— |
21,000,000
GBP
|
| Proceeds from issue of bonds, notes and debentures |
496,000,000
GBP
|
496,000,000
GBP
|
496,000,000
GBP
|
—
GBP
|