Statement Of Cash Flows [Abstract]
| Concept |
As at 2024-03-30 |
2023-04-02 to 2024-03-30 |
2022-04-03 to 2023-04-01 |
As at 2023-04-01 |
|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||
| Cash flows from (used in) operating activities [abstract] | ||||
| Cash flows from (used in) operations | — |
665,000,000
GBP
|
912,000,000
GBP
|
— |
| Interest paid, classified as operating activities | — |
52,000,000
GBP
|
40,000,000
GBP
|
— |
| Interest received, classified as operating activities | — |
32,000,000
GBP
|
18,000,000
GBP
|
— |
| Income taxes paid (refund), classified as operating activities | — |
139,000,000
GBP
|
140,000,000
GBP
|
— |
| Cash flows from (used in) operating activities | — |
506,000,000
GBP
|
750,000,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | ||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
19,000,000
GBP
|
–
GBP
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
–
GBP
|
32,000,000
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities | — |
158,000,000
GBP
|
136,000,000
GBP
|
— |
| Purchase of intangible assets, classified as investing activities | — |
50,000,000
GBP
|
43,000,000
GBP
|
— |
| Cash flows from (used in) investing activities | — |
231,000,000
GBP
|
147,000,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | ||||
| Proceeds from issuing shares | — |
1,000,000
GBP
|
3,000,000
GBP
|
— |
| Payments of lease liabilities, classified as financing activities | — |
231,000,000
GBP
|
210,000,000
GBP
|
— |
| Dividends paid, classified as financing activities | — |
233,000,000
GBP
|
203,000,000
GBP
|
— |
| Cash flows from (used in) financing activities | — |
865,000,000
GBP
|
821,000,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
590,000,000
GBP
|
218,000,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||
| Effect of exchange rate changes on cash and cash equivalents | — |
9,000,000
GBP
|
2,000,000
GBP
|
— |
| Cash and cash equivalents |
441,000,000
GBP
|
— | — |
1 ,026
GBP
|