Disclosure Of Financial Instruments [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 |
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 |
2020-01-01 to 2020-12-31 |
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| Disclosure of financial instruments [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Income, expense, gains or losses of financial instruments [abstract] | ||||||||||||||||||
| Gains (losses) on financial instruments [abstract] | ||||||||||||||||||
| Other comprehensive income, before tax, financial assets measured at fair value through other comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
5 0 . 1
GBP
|
–
GBP
|
–
GBP
|
5 0 . 1
GBP
|
5 0 . 1
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4 0.6
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4 0.6
GBP
|
40,600,000
GBP
|