Analysis Of Income And Expense [Abstract]
| 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 |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||||||
| Revenue | — | — | — | — | — | — | — | — | — |
2 , 538 .1
GBP
|
— |
4 , 6 45 . 2
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||||||||
| Investment income | — | — | — | — | — | — | — | — | — |
1 30 . 3
GBP
|
— |
1,777 . 7
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Miscellaneous other operating expense | — | — | — | — | — | — | — | — | — |
193. 2
GBP
|
— |
219. 9
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Fee and commission income (expense) [abstract] | ||||||||||||||||||||||
| Fee and commission income [abstract] | ||||||||||||||||||||||
| Fee and commission income | — | — | — | — | — | — | — | — | — |
15,600,000
GBP
|
— |
11 .7
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||||||||
| Expenses, by nature | — | — | — | — | — | — | — | — | — |
2 , 559 . 5
GBP
|
— |
4, 4 0 8. 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — | — | — | — | — | — | — | — | — |
600,000
GBP
|
— |
600,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||||||
| Comprehensive income |
0. 8
GBP
|
–
GBP
|
15. 6
GBP
|
–
GBP
|
–
GBP
|
0. 5
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
16 . 4
GBP
|
15. 1
GBP
|
190 .8
GBP
|
–
GBP
|
193 . 0
GBP
|
–
GBP
|
–
GBP
|
1,100,000
GBP
|
–
GBP
|
–
GBP
|
191. 9
GBP
|
1 .1
GBP
|
–
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — | — | — | — |
15,600,000
GBP
|
— |
191 .9
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — | — | — | — |
0. 8
GBP
|
— |
1 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |