Statement Of Financial Position [Abstract]
| Concept |
As at 2024-01-31 |
As at 2024-01-31 |
As at 2024-01-31 |
As at 2024-01-31 |
As at 2024-01-31 |
As at 2024-01-31 |
As at 2024-01-31 |
As at 2024-01-31 |
As at 2023-01-31 |
As at 2023-01-31 |
As at 2023-01-31 |
As at 2023-01-31 |
As at 2023-01-31 |
As at 2023-01-31 |
As at 2023-01-31 |
As at 2023-01-31 |
As at 2022-02-01 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
As at 2022-01-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
593,400,000
GBP
|
— |
611,000,000
GBP
|
— | — | — | — | — | — | — |
646,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — |
24,600,000
GBP
|
— |
30,700,000
GBP
|
— | — | — | — | — | — | — |
36,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — |
344,700,000
GBP
|
— |
449,600,000
GBP
|
— | — | — | — | — | — | — |
718,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — |
60,700,000
GBP
|
— |
51,300,000
GBP
|
— | — | — | — | — | — | — |
47,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — | — | — | — | — |
17,400,000
GBP
|
— |
31,200,000
GBP
|
— | — | — | — | — | — | — |
12,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Inventories | — | — | — | — | — | — |
8,100,000
GBP
|
— |
7,000,000
GBP
|
— | — | — | — | — | — | — |
6,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets | — | — | — | — | — | — |
4,800,000
GBP
|
— |
4,400,000
GBP
|
— | — | — | — | — | — | — |
4,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
49,400,000
GBP
|
— |
20,800,000
GBP
|
— | — | — | — | — | — | — |
15,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other receivables | — | — | — | — | — | — |
127,700,000
GBP
|
— |
136,000,000
GBP
|
— | — | — | — | — | — | — |
115,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
219,600,000
GBP
|
— |
191,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
255,700,000
GBP
|
| Assets | — | — | — | — | — | — |
1,882,800,000
GBP
|
— |
1,949,300,000
GBP
|
— | — | — | — | — | — | — |
2,266,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
21,300,000
GBP
|
— |
21,100,000
GBP
|
— | — | — | — | — | — | — |
21,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
452,500,000
GBP
|
— |
309,700,000
GBP
|
— | — | — | — | — | — | — |
24,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — |
648,300,000
GBP
|
— |
648,300,000
GBP
|
— | — | — | — | — | — | — |
648,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — | — | — | — |
1,200,000
GBP
|
— |
–
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
1,200,000
GBP
|
10,500,000
GBP
|
2,900,000
GBP
|
648,300,000
GBP
|
21,300,000
GBP
|
–
GBP
|
223,500,000
GBP
|
452,500,000
GBP
|
365,400,000
GBP
|
8,900,000
GBP
|
–
GBP
|
–
GBP
|
21,100,000
GBP
|
648,300,000
GBP
|
3,200,000
GBP
|
309,700,000
GBP
|
651,400,000
GBP
|
–
GBP
|
648,300,000
GBP
|
–
GBP
|
648,300,000
GBP
|
–
GBP
|
700,000
GBP
|
7,400,000
GBP
|
21,100,000
GBP
|
22,400,000
GBP
|
–
GBP
|
2,300,000
GBP
|
21,100,000
GBP
|
800,000
GBP
|
651,400,000
GBP
|
24,700,000
GBP
|
1,500,000
GBP
|
7,400,000
GBP
|
–
GBP
|
652,900,000
GBP
|
–
GBP
|
–
GBP
|
800,000
GBP
|
–
GBP
|
700,000
GBP
|
— |
| Liabilities [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Trade and other payables | — | — | — | — | — | — |
201,300,000
GBP
|
— |
186,500,000
GBP
|
— | — | — | — | — | — | — |
187,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Provisions [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Provisions | — | — | — | — | — | — |
8,000,000
GBP
|
— |
5,200,000
GBP
|
— | — | — | — | — | — | — |
5,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Insurance contracts issued that are liabilities | — | — | — | — | — | — |
399,300,000
GBP
|
— |
347,500,000
GBP
|
— | — | — | — | — | — | — |
359,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reinsurance contracts held that are liabilities | — | — | — | — | — | — |
–
GBP
|
— |
–
GBP
|
— | — | — | — | — | — | — |
1,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — |
14,600,000
GBP
|
— |
9,300,000
GBP
|
— | — | — | — | — | — | — |
7,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — |
1,659,300,000
GBP
|
— |
1,583,900,000
GBP
|
— | — | — | — | — | — | — |
1,615,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
1,882,800,000
GBP
|
— |
1,949,300,000
GBP
|
— | — | — | — | — | — | — |
2,266,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |