Statement Of Comprehensive Income [Abstract]
| Concept |
2021-05-02 to 2022-04-30 |
2021-05-02 to 2022-04-30 |
2021-05-02 to 2022-04-30 |
2021-05-02 to 2022-04-30 |
2021-05-02 to 2022-04-30 |
2020-05-03 to 2021-05-01 |
2020-05-03 to 2021-05-01 |
2020-05-03 to 2021-05-01 |
2020-05-03 to 2021-05-01 |
2020-05-03 to 2021-05-01 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
–
GBP
|
59,000,000
GBP
|
59,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
12,000,000
GBP
|
12,000,000
GBP
|
| Other comprehensive income [abstract] | ||||||||||
| Other comprehensive income that will not be reclassified to profit or loss, net of tax | — | — | — |
147,000,000
GBP
|
— | — | — | — |
51,000,000
GBP
|
— |
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||||||
| Exchange differences on translation [abstract] | ||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — | — | — |
32,000,000
GBP
|
— | — | — | — |
46,000,000
GBP
|
— |
| Financial assets measured at fair value through other comprehensive income [abstract] | ||||||||||
| Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income | — | — | — |
-
GBP
|
— | — | — | — |
8,000,000
GBP
|
— |
| Other comprehensive income that will be reclassified to profit or loss, net of tax | — | — | — |
4 8
GBP
|
— | — | — | — |
6,000,000
GBP
|
— |
| Other comprehensive income |
–
GBP
|
4 6
GBP
|
–
GBP
|
99,000,000
GBP
|
145,000,000
GBP
|
–
GBP
|
–
GBP
|
14,000,000
GBP
|
57,000,000
GBP
|
43,000,000
GBP
|
| Comprehensive income |
–
GBP
|
4 6
GBP
|
–
GBP
|
158,000,000
GBP
|
20 4
GBP
|
–
GBP
|
–
GBP
|
14,000,000
GBP
|
69,000,000
GBP
|
55,000,000
GBP
|