Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
2 ,388 .0
GBP
|
2 , 31 0 .7
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
142 . 3
GBP
|
18 8 .6
GBP
|
— |
| Goodwill |
424 . 2
GBP
|
416 .3
GBP
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
6,900,000
GBP
|
5,500,000
GBP
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current net defined benefit asset |
38,500,000
GBP
|
4 8 .9
GBP
|
— |
| Non-current derivative financial assets |
4 21.7
GBP
|
3 5 7. 5
GBP
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
3 4 8 .1
GBP
|
1 9 9 .1
GBP
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
238 .0
GBP
|
3 17. 4
GBP
|
28 9. 8
GBP
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
79 6.3
GBP
|
888,600,000
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
1 , 3 9 6 . 6
GBP
|
1, 320.4
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
4 4 . 3
GBP
|
4 0 . 6
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current derivative financial liabilities |
7 35 . 4
GBP
|
5 41. 8
GBP
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
989 .4
GBP
|
9 6 2 .7
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
4 7. 9
GBP
|
4 7. 7
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
193 . 8
GBP
|
19 8 .3
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of change in value of forward elements of forward contracts |
15 2 . 0
GBP
|
17 7. 4
GBP
|
— |
| Reserve of change in value of foreign currency basis spreads |
4 0 .1
GBP
|
78 .5
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets (liabilities) |
1,3 24. 2
GBP
|
1, 3 0 6 . 8
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
2 , 7 9 7. 2
GBP
|
2 ,3 4 8. 4
GBP
|
— |
| Current liabilities |
2 , 6 0 7. 6
GBP
|
2 , 2 3 2 . 9
GBP
|
— |
| Current assets (liabilities) |
18 9. 6
GBP
|
115 . 5
GBP
|
— |
| Assets less current liabilities [abstract] |