Disclosure Of Entity's Operating Segments [Text Block]
| Concept |
2021-01-01 to 2021-12-31 |
As at 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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of entity's operating segments [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of operating segments [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of operating segments [abstract] | ||||||||||||||||||
| Disclosure of operating segments [line items] | ||||||||||||||||||
| Revenue | — | — | — |
–
GBP
|
1,889,600,000
GBP
|
— | — |
1,889,600,000
GBP
|
— | — | — |
1,390,300,000
GBP
|
— | — |
–
GBP
|
1,390,300,000
GBP
|
— | — |
| Tax expense (income) | — | — | — |
5,700,000
GBP
|
94,400,000
GBP
|
— | — |
88,700,000
GBP
|
— | — | — |
67,900,000
GBP
|
— | — |
4,500,000
GBP
|
72,400,000
GBP
|
— | — |
| Profit (loss) before tax | — | — | — |
33,700,000
GBP
|
445,200,000
GBP
|
— | — |
411,500,000
GBP
|
— | — | — |
269,500,000
GBP
|
— | — |
31,100,000
GBP
|
300,600,000
GBP
|
— | — |
| Profit (loss) |
2,000,000
GBP
|
— |
–
GBP
|
28,000,000
GBP
|
350,800,000
GBP
|
–
GBP
|
–
GBP
|
322,800,000
GBP
|
320,800,000
GBP
|
201,600,000
GBP
|
–
GBP
|
201,600,000
GBP
|
— |
–
GBP
|
26,600,000
GBP
|
228,200,000
GBP
|
–
GBP
|
–
GBP
|
| Investments accounted for using equity method | — |
3,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
5,200,000
GBP
|
— | — | — | — | — |
| Cash flows from (used in) operating activities | — | — | — | — | — | — | — |
347,700,000
GBP
|
— | — | — |
287,000,000
GBP
|
— | — | — | — | — | — |
| Cash flows from (used in) investing activities | — | — | — | — | — | — | — |
216,200,000
GBP
|
— | — | — |
991,900,000
GBP
|
— | — | — | — | — | — |
| Cash flows from (used in) financing activities | — | — | — | — | — | — | — |
112,600,000
GBP
|
— | — | — |
722,400,000
GBP
|
— | — | — | — | — | — |
| Disclosure of products and services [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of products and services [abstract] | ||||||||||||||||||
| Disclosure of products and services [line items] | ||||||||||||||||||
| Disclosure of geographical areas [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of geographical areas [abstract] | ||||||||||||||||||
| Disclosure of geographical areas [line items] | ||||||||||||||||||
| Disclosure of major customers [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of major customers [abstract] | ||||||||||||||||||
| Disclosure of major customers [line items] |