Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
4 0 .9
GBP
|
3 5 .1
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
12 .0
GBP
|
1 8 .4
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash [abstract] | |||
| Cash on hand |
400,000
GBP
|
0. 5
GBP
|
— |
| Cash and cash equivalents |
3 , 0 4 4 .1
GBP
|
2 ,736.7
GBP
|
2 , 370. 6
GBP
|
| Miscellaneous assets [abstract] | |||
| Derivative financial assets |
888,100,000
GBP
|
185 .7
GBP
|
— |
| Investments other than investments accounted for using equity method |
4 1 2 .9
GBP
|
4 9 1 .4
GBP
|
— |
| Loans and advances | — | — | — |
| Loans and advances to banks |
3,365 .7
GBP
|
2,843,600,000
GBP
|
— |
| Loans and advances to customers |
23,612,700,000
GBP
|
21,08 0.3
GBP
|
— |
| Other assets |
15,000,000
GBP
|
10. 2
GBP
|
— |
| Classes of other provisions [abstract] | |||
| Other provisions [abstract] | |||
| Other provisions |
400,000
GBP
|
2 .0
GBP
|
— |
| Borrowings, by type [abstract] | |||
| Bonds issued |
15,200,000
GBP
|
15,200,000
GBP
|
— |
| Miscellaneous liabilities [abstract] | |||
| Derivative financial liabilities |
106,600,000
GBP
|
1 9. 7
GBP
|
— |
| Deposit liabilities | — | — | — |
| Deposits from banks |
5,092. 9
GBP
|
4 , 3 1 9. 6
GBP
|
— |
| Deposits from customers [abstract] | |||
| Deposits from customers |
19 ,755.8
GBP
|
1 7, 5 2 6 . 4
GBP
|
— |
| Subordinated liabilities [abstract] | |||
| Subordinated liabilities |
–
GBP
|
10. 3
GBP
|
— |
| Debt instruments issued |
2 6 5 .9
GBP
|
460. 3
GBP
|
— |
| Other liabilities |
3 8.7
GBP
|
2 9. 6
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
4,300,000
GBP
|
4,500,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
3,389 .4
GBP
|
3 , 2 1 5 .1
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Capital redemption reserve |
0. 2
GBP
|
— | — |
| Net assets (liabilities) [abstract] | |||
| Assets |
2 7, 5 6 6 . 7
GBP
|
2 4, 5 3 1 .9
GBP
|
— |
| Liabilities |
25,365,700,000
GBP
|
22,507 .5
GBP
|
— |
| Assets less current liabilities [abstract] |