Statement Of Cash Flows [Abstract]
| Concept |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
2020-04-01 to 2021-03-31 |
As at 2020-03-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operations |
41,800,000
GBP
|
— | — |
475,400,000
GBP
|
— |
| Interest paid, classified as operating activities |
54,900,000
GBP
|
— | — |
79,400,000
GBP
|
— |
| Interest received, classified as operating activities |
9,900,000
GBP
|
— | — |
12,000,000
GBP
|
— |
| Income taxes paid (refund), classified as operating activities |
10,000,000
GBP
|
— | — |
19,400,000
GBP
|
— |
| Cash flows from (used in) operating activities |
6,800,000
GBP
|
— | — |
427,400,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities |
420,700,000
GBP
|
— | — |
90,600,000
GBP
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities |
15,500,000
GBP
|
— | — |
–
GBP
|
— |
| Other cash payments to acquire interests in joint ventures, classified as investing activities |
2,600,000
GBP
|
— | — |
8,800,000
GBP
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities |
68,000,000
GBP
|
— | — |
33,200,000
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities |
190,800,000
GBP
|
— | — |
156,900,000
GBP
|
— |
| Purchase of intangible assets, classified as investing activities |
12,400,000
GBP
|
— | — |
19,600,000
GBP
|
— |
| Cash advances and loans made to other parties, classified as investing activities |
1,400,000
GBP
|
— | — |
3,900,000
GBP
|
— |
| Cash receipts from repayment of advances and loans made to other parties, classified as investing activities |
31,000,000
GBP
|
— | — |
4,200,000
GBP
|
— |
| Dividends received, classified as investing activities |
41,600,000
GBP
|
— | — |
36,800,000
GBP
|
— |
| Cash flows from (used in) investing activities |
338,600,000
GBP
|
— | — |
2 4.4
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments to acquire or redeem entity's shares |
–
GBP
|
— | — |
2,200,000
GBP
|
— |
| Proceeds from borrowings, classified as financing activities |
23,100,000
GBP
|
— | — |
25,100,000
GBP
|
— |
| Repayments of borrowings, classified as financing activities |
31,700,000
GBP
|
— | — |
1,154,400,000
GBP
|
— |
| Payments of lease liabilities, classified as financing activities |
1 13.0
GBP
|
— | — |
140,600,000
GBP
|
— |
| Cash flows from (used in) financing activities |
122,700,000
GBP
|
— | — |
1,223 .9
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes |
222,700,000
GBP
|
— | — |
820,900,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents |
2,900,000
GBP
|
— | — |
3,100,000
GBP
|
— |
| Cash and cash equivalents | — |
1,146,300,000
GBP
|
904,800,000
GBP
|
— |
1,845,900,000
GBP
|