Statement Of Cash Flows [Abstract]
| Concept |
2022-04-25 to 2023-04-30 |
2021-04-26 to 2022-04-24 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Cash flows from (used in) operations before changes in working capital |
875,600,000
GBP
|
786,800,000
GBP
|
| Adjustments for amortisation expense |
6,900,000
GBP
|
7,500,000
GBP
|
| Adjustments for gain (loss) on disposals, property, plant and equipment |
95,400,000
GBP
|
10,800,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||
| Purchase of investments other than investments accounted for using equity method |
243,300,000
GBP
|
198,400,000
GBP
|