Statement Of Cash Flows [Abstract]
| Concept |
As at 2022-10-01 |
2021-10-03 to 2022-10-01 |
2020-10-04 to 2021-10-02 |
As at 2021-10-02 |
|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||
| Cash flows from (used in) operating activities [abstract] | ||||
| Dividends received, classified as operating activities | — |
19,400,000
GBP
|
–
GBP
|
— |
| Income taxes paid (refund), classified as operating activities | — |
1,500,000
GBP
|
7,500,000
GBP
|
— |
| Cash flows from (used in) operating activities | — |
134,000,000
GBP
|
34,700,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | ||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
28,200,000
GBP
|
228,000,000
GBP
|
— |
| Interest received, classified as investing activities | — |
900,000
GBP
|
500,000
GBP
|
— |
| Cash flows from (used in) investing activities | — |
28,200,000
GBP
|
198,200,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | ||||
| Payments of lease liabilities, classified as financing activities | — |
8,500,000
GBP
|
19,800,000
GBP
|
— |
| Interest paid, classified as financing activities | — |
79,400,000
GBP
|
96,300,000
GBP
|
— |
| Cash flows from (used in) financing activities | — |
110,300,000
GBP
|
241,400,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
4,500,000
GBP
|
8,500,000
GBP
|
— |
| Cash and cash equivalents |
27,700,000
GBP
|
— | — |
32,200,000
GBP
|