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 |
663,000,000
GBP
|
— | — |
330,000,000
GBP
|
— |
| Interest paid, classified as operating activities |
69,000,000
GBP
|
— | — |
70,000,000
GBP
|
— |
| Interest received, classified as operating activities |
6,000,000
GBP
|
— | — |
4,000,000
GBP
|
— |
| Income taxes paid (refund), classified as operating activities |
46,000,000
GBP
|
— | — |
29,000,000
GBP
|
— |
| Cash flows from (used in) operating activities |
554,000,000
GBP
|
— | — |
235,000,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities |
–
GBP
|
— | — |
4,000,000
GBP
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities |
7,000,000
GBP
|
— | — |
2,000,000
GBP
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities |
1,000,000
GBP
|
— | — |
–
GBP
|
— |
| Cash flows from (used in) investing activities |
189,000,000
GBP
|
— | — |
137,000,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from changes in ownership interests in subsidiaries that do not result in loss of control |
2,000,000
GBP
|
— | — |
1,000,000
GBP
|
— |
| Proceeds from borrowings, classified as financing activities |
89,000,000
GBP
|
— | — |
115,000,000
GBP
|
— |
| Repayments of borrowings, classified as financing activities |
183,000,000
GBP
|
— | — |
196,000,000
GBP
|
— |
| Payments of lease liabilities, classified as financing activities |
42,000,000
GBP
|
— | — |
39,000,000
GBP
|
— |
| Cash flows from (used in) financing activities |
14 9
GBP
|
— | — |
130,000,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes |
216,000,000
GBP
|
— | — |
32,000,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents |
24,000,000
GBP
|
— | — |
3,000,000
GBP
|
— |
| Cash and cash equivalents | — |
534,000,000
GBP
|
294,000,000
GBP
|
— |
329,000,000
GBP
|