Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) investing activities [abstract] | ||
| Proceeds from sales of investments accounted for using equity method |
–
GBP
|
2. 0
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Dividends paid to non-controlling interests, classified as financing activities |
3,000,000
GBP
|
4 . 3
GBP
|
| Proceeds from contributions of non-controlling interests |
1. 2
GBP
|
–
GBP
|