Analysis Of Income And Expense [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||
| Revenue | — | — | — |
4, 0 4 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
4,686,000,000
GBP
|
— |
| Material income and expense [abstract] | ||||||||||||||||||
| Investment income | — | — | — |
4 , 6 4 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
4 , 0 02
GBP
|
— |
| Miscellaneous other operating expense | — | — | — |
58 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
63 6
GBP
|
— |
| Operating expense | — | — | — |
4 ,1 0 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
4 ,6 0 3
GBP
|
— |
| Fee and commission income (expense) [abstract] | ||||||||||||||||||
| Fee and commission income [abstract] | ||||||||||||||||||
| Fee and commission income | — | — | — |
5 81
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
666,000,000
GBP
|
— |
| Fee and commission expense [abstract] | ||||||||||||||||||
| Fee and commission expense | — | — | — |
54,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
61,000,000
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 | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,000,000
GBP
|
— |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||
| Comprehensive income from continuing operations | — | — | — |
17 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
22,000,000
GBP
|
— |
| Comprehensive income from discontinued operations | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
13 1
GBP
|
— |
| Comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
17 5
GBP
|
–
GBP
|
–
GBP
|
17 5
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1,000,000
GBP
|
–
GBP
|
–
GBP
|
153,000,000
GBP
|
15 4
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
17 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
153,000,000
GBP
|
— |