Statement Of Cash Flows [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) investing activities [abstract] | ||
| Purchase of investments other than investments accounted for using equity method |
527,075,000
GBP
|
424,336,000
GBP
|
| Proceeds from sales of investments other than investments accounted for using equity method |
410,536,000
GBP
|
279,628,000
GBP
|