Statement Of Financial Position [Abstract]
| Concept |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||||||||||||||
| Property, plant and equipment | — |
1 5, 395 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
14 ,61 2. 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — |
21 , 372 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
18 ,818.7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||||||||
| Current inventories | — |
394,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
26 6 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — |
3 , 24 5 . 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2, 21 1 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — |
891 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,0 4 9. 3
GBP
|
— | — | — | — | — | — | — | — |
1,6 00. 2
GBP
|
— | — | — | — | — |
| Current assets | — |
5 ,76 5 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6 ,93 6 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — |
2 7, 1 3 8 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
25,755 . 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||||||||
| Issued capital | — |
5 4 7. 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
536,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — |
6, 68 9. 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6 , 57 2 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — |
821 . 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
835. 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — |
6 4 9. 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
40,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
10,46 6. 3
GBP
|
11 ,115.4
GBP
|
821 . 2
GBP
|
5 4 7. 0
GBP
|
52 .6
GBP
|
1 ,8 82 .4
GBP
|
4 41 . 2
GBP
|
8,583,900,000
GBP
|
6 49. 1
GBP
|
6, 68 9. 8
GBP
|
32 . 1
GBP
|
4 9. 2
GBP
|
9,128,800,000
GBP
|
536 .5
GBP
|
6,600,000
GBP
|
835. 1
GBP
|
7 7. 5
GBP
|
6 , 572 .9
GBP
|
9,16 9.4
GBP
|
8, 07 7. 8
GBP
|
40,600,000
GBP
|
1 ,051 .0
GBP
|
49. 2
GBP
|
6 ,681 .1
GBP
|
1 , 47 2 .4
GBP
|
133 .6
GBP
|
3,921 . 1
GBP
|
6,6 81 .1
GBP
|
5,208,700,000
GBP
|
5 24 . 5
GBP
|
8 4 7. 1
GBP
|
–
GBP
|
400,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||||||||||||||
| Non-current provisions | — |
74 2 . 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 , 0 1 7. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current payables | — |
9 59. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8 42.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — |
1 , 2 99. 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,644,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — |
11 , 2 62 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 1 , 9 2 7. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||||||||||||||
| Current provisions | — |
2 9. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
93 . 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — |
2,6 58 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,67 2.6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — |
4 , 761 . 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,65 8. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — |
16,0 23 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
16, 58 6 . 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |