Disclosure Of Income Tax [Text Block]
| Concept |
As at 2023-06-30 |
2022-07-01 to 2023-06-30 |
2021-07-01 to 2022-06-30 |
As at 2022-06-30 |
2020-07-01 to 2021-06-30 |
|---|---|---|---|---|---|
| Disclosure of income tax [text block] | — |
7. Taxation
|
— | — | — |
| Major components of tax expense (income) [abstract] | |||||
| Tax expense (income) | — |
970,000,000
GBP
|
1,049,000,000
GBP
|
— |
907,000,000
GBP
|
| Income tax relating to components of other comprehensive income [abstract] | |||||
| Income tax relating to cash flow hedges included in other comprehensive income | — |
39,000,000
GBP
|
32,000,000
GBP
|
— |
6,000,000
GBP
|
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — |
161,000,000
GBP
|
123,000,000
GBP
|
— |
46,000,000
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 |
141,000,000
GBP
|
— | — |
114,000,000
GBP
|
— |
| Deferred tax liabilities |
2,183,000,000
GBP
|
— | — |
2,319,000,000
GBP
|
— |
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |