Disclosure Of Effect Of Changes In Foreign Exchange Rates [Text Block]
| Concept |
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 |
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 |
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 |
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 |
As at 2020-01-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — | — | — | — |
2,3 25
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,9 2 1
GBP
|
— | — | — |
1,8 7 0
GBP
|
| Current assets | — | — | — | — | — | — | — | — |
3, 125
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
2, 718
GBP
|
— | — | — |
2, 084
GBP
|
| Non-current liabilities | — | — | — | — | — | — | — | — |
1 ,230
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
992,000,000
GBP
|
— | — | — |
927,000,000
GBP
|
| Current liabilities | — | — | — | — | — | — | — | — |
2,242,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1 , 949
GBP
|
— | — | — |
1 ,297
GBP
|
| Revenue | — | — | — | — | — | — | — | — | — | — | — |
1,8 6 5
GBP
|
— |
1 , 794
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Profit (loss) |
3,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
5,000,000
GBP
|
— |
–
GBP
|
–
GBP
|
8,000,000
GBP
|
5,000,000
GBP
|
97,000,000
GBP
|
–
GBP
|
–
GBP
|
96,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
1,000,000
GBP
|
–
GBP
|
96,000,000
GBP
|
— |
| Other comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
3,000,000
GBP
|
–
GBP
|
1,000,000
GBP
|
7,000,000
GBP
|
— |
–
GBP
|
–
GBP
|
7,000,000
GBP
|
3,000,000
GBP
|
27,000,000
GBP
|
–
GBP
|
–
GBP
|
2,000,000
GBP
|
–
GBP
|
29,000,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
27,000,000
GBP
|
— |
| Comprehensive income |
3,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
3,000,000
GBP
|
–
GBP
|
1,000,000
GBP
|
12,000,000
GBP
|
— |
–
GBP
|
–
GBP
|
15,000,000
GBP
|
8,000,000
GBP
|
70,000,000
GBP
|
–
GBP
|
–
GBP
|
98,000,000
GBP
|
–
GBP
|
29,000,000
GBP
|
–
GBP
|
–
GBP
|
— |
1,000,000
GBP
|
–
GBP
|
69,000,000
GBP
|
— |