Disclosure Of Income Tax [Text Block]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|
| Disclosure of income tax [text block] | — |
9. Taxation
|
— | — | — |
| Major components of tax expense (income) [abstract] | |||||
| Tax expense (income) | — |
499,000,000
GBP
|
— |
197,000,000
GBP
|
410,000,000
GBP
|
| Income tax relating to components of other comprehensive income [abstract] | |||||
| Income tax relating to cash flow hedges included in other comprehensive income | — |
48,000,000
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 |
220,000,000
GBP
|
— |
312,000,000
GBP
|
— | — |
| Deferred tax liabilities |
3,601,000,000
GBP
|
— |
3,357,000,000
GBP
|
— | — |
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |