Statement Of Financial Position [Abstract]
| Concept |
As at 2024-07-31 |
As at 2024-07-31 |
As at 2024-07-31 |
As at 2024-07-31 |
As at 2024-07-31 |
As at 2024-07-31 |
As at 2024-07-31 |
As at 2024-07-31 |
As at 2023-07-31 |
As at 2023-07-31 |
As at 2023-07-31 |
As at 2023-07-31 |
As at 2023-07-31 |
As at 2023-07-31 |
As at 2023-07-31 |
As at 2023-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
As at 2022-07-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — |
270,000,000
GBP
|
— | — | — | — | — | — | — | — |
247,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — |
110,000,000
GBP
|
— | — | — | — | — | — | — | — |
105,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — |
1,521,000,000
GBP
|
— | — | — | — | — | — | — | — |
1,521,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — |
94,000,000
GBP
|
— | — | — | — | — | — | — | — |
121,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
459,000,000
GBP
|
— | — | — | — | — | — | — | — |
285,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — |
4,232,000,000
GBP
|
— | — | — | — | — | — | — | — |
4,381,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — | — | — | — | — |
130,000,000
GBP
|
— | — | — | — | — | — | — | — |
131,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — |
1,306,000,000
GBP
|
— | — | — | — | — | — | — | — |
1,431,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — |
365,000,000
GBP
|
— | — | — | — | — | — | — | — |
365,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — |
2,230,000,000
GBP
|
— | — | — | — | — | — | — | — |
2,384,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — |
22,000,000
GBP
|
— | — | — | — | — | — | — | — |
22,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity |
184,000,000
GBP
|
495,000,000
GBP
|
1,306,000,000
GBP
|
2,230,000,000
GBP
|
353,000,000
GBP
|
2,252,000,000
GBP
|
22,000,000
GBP
|
260,000,000
GBP
|
188,000,000
GBP
|
1,431,000,000
GBP
|
496,000,000
GBP
|
386,000,000
GBP
|
2,384,000,000
GBP
|
22,000,000
GBP
|
2,406,000,000
GBP
|
259,000,000
GBP
|
1,659,000,000
GBP
|
501,000,000
GBP
|
202,000,000
GBP
|
2,721,000,000
GBP
|
487,000,000
GBP
|
2,699,000,000
GBP
|
22,000,000
GBP
|
254,000,000
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — |
32,000,000
GBP
|
— | — | — | — | — | — | — | — |
69,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — |
1,980,000,000
GBP
|
— | — | — | — | — | — | — | — |
1,975,000,000
GBP
|
— | — | — | — | — | — | — | — | — |