Statement Of Changes In Equity [Abstract]
| Concept |
2024-02-03 to 2025-02-01 |
2024-02-03 to 2025-02-01 |
2024-02-03 to 2025-02-01 |
As at 2025-02-01 |
2024-02-03 to 2025-02-01 |
As at 2025-02-01 |
2024-02-03 to 2025-02-01 |
As at 2025-02-01 |
As at 2025-02-01 |
2024-02-03 to 2025-02-01 |
As at 2025-02-01 |
2024-02-03 to 2025-02-01 |
As at 2025-02-01 |
2024-02-03 to 2025-02-01 |
As at 2025-02-01 |
2024-02-03 to 2025-02-01 |
As at 2025-02-01 |
2024-02-03 to 2025-02-01 |
As at 2025-02-01 |
2024-02-03 to 2025-02-01 |
As at 2024-02-03 |
2023-01-28 to 2024-02-03 |
2023-01-28 to 2024-02-03 |
As at 2024-02-03 |
2023-01-28 to 2024-02-03 |
2023-01-28 to 2024-02-03 |
As at 2024-02-03 |
2023-01-28 to 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
2023-01-28 to 2024-02-03 |
2023-01-28 to 2024-02-03 |
2023-01-28 to 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
2023-01-28 to 2024-02-03 |
2023-01-28 to 2024-02-03 |
As at 2024-02-03 |
As at 2024-02-03 |
2023-01-28 to 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 changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||
| 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
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
701,000,000
GBP
|
540,000,000
GBP
|
161,000,000
GBP
|
— |
–
GBP
|
— |
490,000,000
GBP
|
— | — |
–
GBP
|
— |
490,000,000
GBP
|
— |
50,000,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — |
539,000,000
GBP
|
— | — | — | — | — | — | — |
539,000,000
GBP
|
124,000,000
GBP
|
729,000,000
GBP
|
— | — | — |
605,000,000
GBP
|
— | — |
66,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
32,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
31,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
572,000,000
GBP
|
— | — |
–
GBP
|
— |
494,000,000
GBP
|
— | — |
–
GBP
|
— |
514,000,000
GBP
|
— |
58,000,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— |
20,000,000
GBP
|
— |
–
GBP
|
539,000,000
GBP
|
— |
–
GBP
|
–
GBP
|
— |
26,000,000
GBP
|
— | — |
513,000,000
GBP
|
— | — | — | — |
–
GBP
|
574,000,000
GBP
|
— | — |
61,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
48,000,000
GBP
|
— | — |
–
GBP
|
— |
48,000,000
GBP
|
— | — |
–
GBP
|
— |
48,000,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
50,000,000
GBP
|
— |
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — |
50,000,000
GBP
|
— | — | — | — |
–
GBP
|
52,000,000
GBP
|
— | — |
2,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
1,000,000
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
— |
1,000,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— |
1,000,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — |
3,000,000
GBP
|
— | — | — | — |
3,000,000
GBP
|
3,000,000
GBP
|
— | — |
–
GBP
|
— | — | — | — | — | — | — | — | — |