Statement Of Comprehensive Income [Abstract]
| Concept |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2023-08-01 to 2024-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||||
| Profit (loss) |
250,000,000
GBP
|
–
GBP
|
115,000,000
GBP
|
–
GBP
|
366,000,000
GBP
|
251,000,000
GBP
|
–
GBP
|
250,000,000
GBP
|
1,000,000
GBP
|
–
GBP
|
–
GBP
|
113,000,000
GBP
|
345,000,000
GBP
|
–
GBP
|
231,000,000
GBP
|
231,000,000
GBP
|
232,000,000
GBP
|
–
GBP
|
1,000,000
GBP
|
–
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||||||||||
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans | — | — | — | — | — |
66,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
114,000,000
GBP
|
— | — | — |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||||||||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — | — | — | — | — |
17,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
32,000,000
GBP
|
— | — | — |
| Other comprehensive income | — | — | — | — | — |
183,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
187,000,000
GBP
|
— | — | — |
| Comprehensive income |
97,000,000
GBP
|
4,000,000
GBP
|
— |
–
GBP
|
— |
68,000,000
GBP
|
33,000,000
GBP
|
68,000,000
GBP
|
–
GBP
|
–
GBP
|
14,000,000
GBP
|
— | — |
–
GBP
|
133,000,000
GBP
|
46,000,000
GBP
|
45,000,000
GBP
|
101,000,000
GBP
|
1,000,000
GBP
|
–
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — |
68,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
46,000,000
GBP
|
— | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — |
1,000,000
GBP
|
— | — | — |