Statement Of Comprehensive Income [Abstract]
| Concept |
2023-04-30 to 2024-04-27 |
2023-04-30 to 2024-04-27 |
2023-04-30 to 2024-04-27 |
2023-04-30 to 2024-04-27 |
2023-04-30 to 2024-04-27 |
2022-05-01 to 2023-04-29 |
2022-05-01 to 2023-04-29 |
2022-05-01 to 2023-04-29 |
2022-05-01 to 2023-04-29 |
2022-05-01 to 2023-04-29 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||
| Profit (loss) |
165,000,000
GBP
|
16 5
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4 8 1
GBP
|
4 8 1
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
| Other comprehensive income [abstract] | ||||||||||
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||
| Cash flow hedges [abstract] | ||||||||||
| Gains (losses) on cash flow hedges, before tax |
4,000,000
GBP
|
— | — | — | — |
11,000,000
GBP
|
— | — | — | — |
| Reclassification adjustments on cash flow hedges, before tax |
6,000,000
GBP
|
— | — | — | — |
3,000,000
GBP
|
— | — | — | — |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income |
5,000,000
GBP
|
— | — | — | — |
3 5
GBP
|
— | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||
| Income tax relating to cash flow hedges included in other comprehensive income |
1,000,000
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — |
| Other comprehensive income |
24,000,000
GBP
|
56,000,000
GBP
|
–
GBP
|
3 2
GBP
|
–
GBP
|
8 7
GBP
|
9 6
GBP
|
9,000,000
GBP
|
–
GBP
|
–
GBP
|
| Comprehensive income |
1 89
GBP
|
221,000,000
GBP
|
–
GBP
|
32,000,000
GBP
|
–
GBP
|
56 8
GBP
|
57 7
GBP
|
9,000,000
GBP
|
–
GBP
|
–
GBP
|