Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-04-04 |
As at 2021-04-04 |
As at 2020-04-04 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
913,000,000
GBP
|
1,101,000,000
GBP
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in subsidiaries reported in separate financial statements |
-
GBP
|
-
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash [abstract] | |||
| Cash |
30,221,000,000
GBP
|
16,693,000,000
GBP
|
— |
| Cash and cash equivalents |
30,824,000,000
GBP
|
17,705,000,000
GBP
|
14,474,000,000
GBP
|
| Miscellaneous assets [abstract] | |||
| Net defined benefit asset |
1,008,000,000
GBP
|
172,000,000
GBP
|
— |
| Derivative financial assets |
4,723,000,000
GBP
|
3,809,000,000
GBP
|
— |
| Investments other than investments accounted for using equity method |
25,484,000,000
GBP
|
25,473,000,000
GBP
|
— |
| Loans and advances | — | — | — |
| Loans and advances to banks |
3,052,000,000
GBP
|
3,660,000,000
GBP
|
— |
| Loans and advances to customers |
208,066,000,000
GBP
|
201,547,000,000
GBP
|
— |
| Other assets |
106,000,000
GBP
|
210,000,000
GBP
|
— |
| Miscellaneous liabilities [abstract] | |||
| Derivative financial liabilities |
1,428,000,000
GBP
|
1,622,000,000
GBP
|
— |
| Deposit liabilities | — | — | — |
| Deposits from banks |
36,425,000,000
GBP
|
27,022,000,000
GBP
|
— |
| Deposits from customers [abstract] | |||
| Deposits from customers |
5,208,000,000
GBP
|
4,522,000,000
GBP
|
— |
| Subordinated liabilities [abstract] | |||
| Subordinated liabilities |
8,250,000,000
GBP
|
7,575,000,000
GBP
|
— |
| Debt instruments issued |
25,629,000,000
GBP
|
27,923,000,000
GBP
|
— |
| Other liabilities |
668,000,000
GBP
|
933,000,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Revaluation surplus |
46,000,000
GBP
|
44,000,000
GBP
|
— |
| Reserve of cash flow hedges |
184,000,000
GBP
|
195,000,000
GBP
|
— |
| Reserve of change in value of foreign currency basis spreads |
43,000,000
GBP
|
46,000,000
GBP
|
— |
| Reserve of gains and losses on financial assets measured at fair value through other comprehensive income |
89,000,000
GBP
|
110,000,000
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Additional paid-in capital |
1,336,000,000
GBP
|
1,336,000,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
272,354,000,000
GBP
|
254,914,000,000
GBP
|
— |
| Liabilities |
256,655,000,000
GBP
|
240,801,000,000
GBP
|
— |
| Assets less current liabilities [abstract] |