Analysis Of Income And Expense [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|
| Analysis of income and expense [abstract] | ||
| Material income and expense [abstract] | ||
| Impairment loss (reversal of impairment loss) on trade receivables [abstract] | ||
| Impairment loss (reversal of impairment loss) recognised in profit or loss, trade receivables |
800,000
GBP
|
10,100,000
GBP
|
| Gains (losses) on disposals of investments [abstract] | ||
| Gains on disposals of investments |
10,400,000
GBP
|
1,700,000
GBP
|
| Revenue and other operating income |
240,200,000
GBP
|
268,600,000
GBP
|
| Gains (losses) on change in fair value of derivatives [abstract] | ||
| Gains (losses) on change in fair value of derivatives |
4,800,000
GBP
|
1,900,000
GBP
|
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||
| Share of profit (loss) of joint ventures accounted for using equity method |
13,900,000
GBP
|
–
GBP
|
| Comprehensive income, continuing and discontinued operations [abstract] | ||
| Comprehensive income |
258,500,000
GBP
|
84,900,000
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||
| Comprehensive income, attributable to owners of parent |
257,000,000
GBP
|
81,100,000
GBP
|
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||
| Comprehensive income, attributable to non-controlling interests |
1,500,000
GBP
|
3,800,000
GBP
|