Statement Of Cash Flows [Abstract]
| Concept |
As at 2025-03-29 |
2024-03-31 to 2025-03-29 |
As at 2024-03-30 |
2023-04-02 to 2024-03-30 |
|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||
| Cash flows from (used in) operating activities [abstract] | ||||
| Cash flows from (used in) operations | — |
526,000,000
GBP
|
— |
665,000,000
GBP
|
| Interest paid, classified as operating activities | — |
75,000,000
GBP
|
— |
52,000,000
GBP
|
| Interest received, classified as operating activities | — |
21,000,000
GBP
|
— |
32,000,000
GBP
|
| Income taxes paid (refund), classified as operating activities | — |
43,000,000
GBP
|
— |
139,000,000
GBP
|
| Cash flows from (used in) operating activities | — |
429,000,000
GBP
|
— |
506,000,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
–
GBP
|
— |
19,000,000
GBP
|
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
12,000,000
GBP
|
— |
–
GBP
|
| Purchase of property, plant and equipment, classified as investing activities | — |
122,000,000
GBP
|
— |
158,000,000
GBP
|
| Purchase of intangible assets, classified as investing activities | — |
29,000,000
GBP
|
— |
50,000,000
GBP
|
| Cash flows from (used in) investing activities | — |
127,000,000
GBP
|
— |
231,000,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||||
| Proceeds from issuing shares | — |
–
GBP
|
— |
1,000,000
GBP
|
| Proceeds from borrowings, classified as financing activities | — |
439,000,000
GBP
|
— |
–
GBP
|
| Payments of lease liabilities, classified as financing activities | — |
232,000,000
GBP
|
— |
231,000,000
GBP
|
| Dividends paid, classified as financing activities | — |
152,000,000
GBP
|
— |
233,000,000
GBP
|
| Cash flows from (used in) financing activities | — |
48,000,000
GBP
|
— |
865,000,000
GBP
|
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
350,000,000
GBP
|
— |
590,000,000
GBP
|
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||
| Effect of exchange rate changes on cash and cash equivalents | — |
4,000,000
GBP
|
— |
9,000,000
GBP
|
| Cash and cash equivalents |
813,000,000
GBP
|
— |
441,000,000
GBP
|
— |