Statement Of Comprehensive Income [Abstract]
| Concept |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
345,000,000
GBP
|
–
GBP
|
345,000,000
GBP
|
–
GBP
|
–
GBP
|
70,000,000
GBP
|
415,000,000
GBP
|
–
GBP
|
471,000,000
GBP
|
118,000,000
GBP
|
–
GBP
|
–
GBP
|
471,000,000
GBP
|
–
GBP
|
589,000,000
GBP
|
–
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||
| Other comprehensive income that will not be reclassified to profit or loss, net of tax | — | — | — | — |
46,000,000
GBP
|
— | — | — | — | — |
135,000,000
GBP
|
— | — | — | — | — | — | — |
| Other comprehensive income that will be reclassified to profit or loss, net of tax | — | — | — | — |
4,000,000
GBP
|
— | — | — | — | — |
135,000,000
GBP
|
— | — | — | — | — | — | — |
| Other comprehensive income |
–
GBP
|
–
GBP
|
20,000,000
GBP
|
22,000,000
GBP
|
42,000,000
GBP
|
–
GBP
|
–
GBP
|
— | — |
181,000,000
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
18 1
GBP
|
–
GBP
|
— |
–
GBP
|
| Comprehensive income |
–
GBP
|
–
GBP
|
325,000,000
GBP
|
22,000,000
GBP
|
303,000,000
GBP
|
–
GBP
|
–
GBP
|
— | — |
181,000,000
GBP
|
471,000,000
GBP
|
— |
–
GBP
|
–
GBP
|
2 90
GBP
|
–
GBP
|
— |
–
GBP
|