Statement Of Financial Position [Abstract]
| Concept |
As at 2025-02-01 |
As at 2025-02-01 |
As at 2025-02-01 |
As at 2025-02-01 |
As at 2025-02-01 |
As at 2025-02-01 |
As at 2025-02-01 |
As at 2025-02-01 |
As at 2025-02-01 |
As at 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
As at 2023-01-27 |
As at 2023-01-27 |
As at 2023-01-27 |
As at 2023-01-27 |
As at 2023-01-27 |
As at 2023-01-27 |
As at 2023-01-27 |
As at 2023-01-27 |
As at 2023-01-27 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||
| Property, plant and equipment |
1,490,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,152,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
2,813,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,297,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Investment property |
3,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method |
1,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
44,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
32,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
24,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
731,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,153,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Assets |
9,954,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,048,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||
| Issued capital |
3,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Retained earnings |
2,633,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,214,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Share premium |
468,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
468,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
2,922,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,457,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
450,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
412,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
3,372,000,000
GBP
|
3,000,000
GBP
|
468,000,000
GBP
|
2,633,000,000
GBP
|
2,922,000,000
GBP
|
450,000,000
GBP
|
277,000,000
GBP
|
4,000,000
GBP
|
91,000,000
GBP
|
468,000,000
GBP
|
2,214,000,000
GBP
|
3,000,000
GBP
|
71,000,000
GBP
|
2,457,000,000
GBP
|
302,000,000
GBP
|
3,000,000
GBP
|
2,869,000,000
GBP
|
412,000,000
GBP
|
1,975,000,000
GBP
|
425,000,000
GBP
|
468,000,000
GBP
|
97,000,000
GBP
|
2,118,000,000
GBP
|
–
GBP
|
3,000,000
GBP
|
514,000,000
GBP
|
2,632,000,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||||||||
| Deferred tax liabilities |
155,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
90,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale |
50,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities |
6,582,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
5,179,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |