Disclosure Of Income Tax [Text Block]
| Concept |
2022-09-18 to 2023-09-16 |
2022-09-18 to 2023-09-16 |
2022-09-18 to 2023-09-16 |
2022-09-18 to 2023-09-16 |
As at 2023-09-16 |
2022-09-18 to 2023-09-16 |
2022-09-18 to 2023-09-16 |
2022-09-18 to 2023-09-16 |
2022-09-18 to 2023-09-16 |
2021-09-19 to 2022-09-17 |
2021-09-19 to 2022-09-17 |
As at 2022-09-17 |
2021-09-19 to 2022-09-17 |
2021-09-19 to 2022-09-17 |
2021-09-19 to 2022-09-17 |
2021-09-19 to 2022-09-17 |
2021-09-19 to 2022-09-17 |
2021-09-19 to 2022-09-17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of income tax [text block] | — | — | — |
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Major components of tax expense (income) [abstract] | ||||||||||||||||||
| Tax expense (income) | — | — | — |
272,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
356,000,000
GBP
|
— | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||||
| Income tax relating to cash flow hedges included in other comprehensive income |
40,000,000
GBP
|
–
GBP
|
–
GBP
|
40,000,000
GBP
|
— |
–
GBP
|
–
GBP
|
40,000,000
GBP
|
–
GBP
|
28,000,000
GBP
|
–
GBP
|
— |
28,000,000
GBP
|
–
GBP
|
–
GBP
|
28,000,000
GBP
|
–
GBP
|
–
GBP
|
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income |
4,000,000
GBP
|
4,000,000
GBP
|
–
GBP
|
4,000,000
GBP
|
— |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
198,000,000
GBP
|
198,000,000
GBP
|
–
GBP
|
198,000,000
GBP
|
–
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 | — | — | — | — |
193,000,000
GBP
|
— | — | — | — | — | — |
158,000,000
GBP
|
— | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — |
626,000,000
GBP
|
— | — | — | — | — | — |
647,000,000
GBP
|
— | — | — | — | — | — |
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |