Disclosure Of Income Tax [Text Block]
| Concept |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|
| Disclosure of income tax [text block] |
|
— | — | — | — |
| Major components of tax expense (income) [abstract] | |||||
| Tax expense (income) |
4 0 2
GBP
|
— |
14 9
GBP
|
— |
385,000,000
GBP
|
| Income tax relating to components of other comprehensive income [abstract] | |||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income |
2,000,000
GBP
|
— |
2,000,000
GBP
|
— |
7,000,000
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 | — |
32 3
GBP
|
— |
324,000,000
GBP
|
— |
| Deferred tax liabilities | — |
1 42
GBP
|
— |
179,000,000
GBP
|
— |
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |