Analysis Of Income And Expense [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|
| Analysis of income and expense [abstract] | ||
| Revenue [abstract] | ||
| Interest income |
14,764,000,000
GBP
|
9,159,000,000
GBP
|
| Material income and expense [abstract] | ||
| Interest expense |
6,741,000,000
GBP
|
1,627,000,000
GBP
|
| Interest income (expense) |
8,023,000,000
GBP
|
7,532,000,000
GBP
|
| Other operating income (expense) |
2,394,000,000
GBP
|
2,585,000,000
GBP
|
| Operating expense |
6,793,000,000
GBP
|
6,288,000,000
GBP
|
| Fee and commission income (expense) [abstract] | ||
| Fee and commission income [abstract] | ||
| Fee and commission income |
2,177,000,000
GBP
|
2,119,000,000
GBP
|
| Fee and commission expense [abstract] | ||
| Fee and commission expense |
508,000,000
GBP
|
493,000,000
GBP
|
| Expenses by nature [abstract] | ||
| Classes of employee benefits expense [abstract] | ||
| Employee benefits expense |
3,109,000,000
GBP
|
2,896,000,000
GBP
|
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||
| Depreciation and amortisation expense [abstract] | ||
| Depreciation and amortisation expense |
877,000,000
GBP
|
768,000,000
GBP
|
| Disclosure of attribution of expenses by nature to their function [text block] | — | — |
| Disclosure of attribution of expenses by nature to their function [abstract] | ||
| Disclosure of attribution of expenses by nature to their function [line items] | ||
| Miscellaneous other comprehensive income [abstract] | ||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations |
17,000,000
GBP
|
2,000,000
GBP
|
| Income tax relating to components of other comprehensive income [abstract] | ||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss |
40,000,000
GBP
|
146,000,000
GBP
|
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss |
73,000,000
GBP
|
276,000,000
GBP
|
| Comprehensive income, continuing and discontinued operations [abstract] | ||
| Comprehensive income |
3,211,000,000
GBP
|
2,619,000,000
GBP
|
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||
| Comprehensive income, attributable to non-controlling interests |
1,000,000
GBP
|
5,000,000
GBP
|