Statement Of Cash Flows [Abstract]
| Concept |
2021-03-28 to 2022-04-02 |
2020-03-29 to 2021-03-27 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for decrease (increase) in trade and other receivables |
5,000,000
GBP
|
39,000,000
GBP
|
| Adjustments for amortisation expense |
39,000,000
GBP
|
33,000,000
GBP
|
| Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, property, plant and equipment |
1,000,000
GBP
|
7,000,000
GBP
|
| Adjustments for gains (losses) on change in fair value of derivatives |
4,000,000
GBP
|
4,000,000
GBP
|