Disclosure Of Effect Of Changes In Foreign Exchange Rates [Text Block]
| Concept |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of effect of changes in foreign exchange rates [text block] | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of information when currency is not exchangeable into another currency [text block] | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of information when foreign operation’s functional currency is not exchangeable into presentation currency [text block] | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of summarised financial information about foreign operation [text block] | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of summarised financial information about foreign operation [abstract] | ||||||||||||
| Disclosure of summarised financial information about foreign operation [line items] | ||||||||||||
| Non-current assets |
5,485,700,000
GBP
|
— | — | — | — | — | — |
4,323,600,000
GBP
|
— | — | — | — |
| Current assets |
108,200,000
GBP
|
— | — | — | — | — | — |
82,900,000
GBP
|
— | — | — | — |
| Non-current liabilities |
1,388,600,000
GBP
|
— | — | — | — | — | — |
1,377,900,000
GBP
|
— | — | — | — |
| Current liabilities |
128,800,000
GBP
|
— | — | — | — | — | — |
107,300,000
GBP
|
— | — | — | — |
| Profit (loss) | — | — | — | — |
972,600,000
GBP
|
— | — | — | — |
449,400,000
GBP
|
— | — |
| Comprehensive income | — |
–
GBP
|
–
GBP
|
–
GBP
|
972,600,000
GBP
|
972,600,000
GBP
|
449,400,000
GBP
|
— |
–
GBP
|
449,400,000
GBP
|
–
GBP
|
–
GBP
|