Disclosure Of Income Tax [Text Block]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|
| Disclosure of income tax [text block] |
|
— | — | — | — | — |
| Major components of tax expense (income) [abstract] | ||||||
| Tax expense (income) |
427,000,000
GBP
|
— | — |
646,000,000
GBP
|
— |
23,000,000
GBP
|
| Income tax relating to components of other comprehensive income [abstract] | ||||||
| Income tax relating to cash flow hedges included in other comprehensive income |
252,000,000
GBP
|
— | — |
348,000,000
GBP
|
— |
77,000,000
GBP
|
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income |
18,000,000
GBP
|
— | — |
18,000,000
GBP
|
— |
17,000,000
GBP
|
| Income tax relating to investments in equity instruments included in other comprehensive income |
—
GBP
|
— | — |
—
GBP
|
— |
—
GBP
|
| Income tax relating to changes in fair value of financial liability attributable to change in credit risk of liability included in other comprehensive income |
47,000,000
GBP
|
— | — |
133,000,000
GBP
|
— |
1,000,000
GBP
|
| Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income |
147,000,000
GBP
|
— | — |
680,000,000
GBP
|
— |
78,000,000
GBP
|
| Income tax relating to insurance finance income (expenses) from insurance contracts issued included in other comprehensive income that will be reclassified to profit or loss |
104,000,000
GBP
|
— | — |
490,000,000
GBP
|
— |
—
GBP
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [text block] | — | — | — | — | — | — |
| Disclosure of temporary difference, unused tax losses and unused tax credits [abstract] | ||||||
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||||||
| Deferred tax assets and liabilities [abstract] | ||||||
| Deferred tax assets | — |
1,278,000,000
GBP
|
1,583,000,000
GBP
|
— |
798,000,000
GBP
|
— |
| Deferred tax liabilities | — |
6,000,000
GBP
|
3,000,000
GBP
|
— |
5,000,000
GBP
|
— |
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |