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 |
47,900,000
GBP
|
41,500,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
2,972,700,000
GBP
|
2,883,600,000
GBP
|
— |
| Goodwill |
5,880,300,000
GBP
|
5,717,000,000
GBP
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
35,500,000
GBP
|
29,100,000
GBP
|
— |
| Trade and other non-current receivables [abstract] | |||
| Other non-current receivables |
49,700,000
GBP
|
23,700,000
GBP
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current net defined benefit asset |
55,800,000
GBP
|
15,500,000
GBP
|
— |
| Non-current derivative financial assets |
2,200,000
GBP
|
3,400,000
GBP
|
— |
| Non-current finance lease receivables |
5,100,000
GBP
|
4,500,000
GBP
|
— |
| Non-current investments other than investments accounted for using equity method |
262,700,000
GBP
|
6,100,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
460,400,000
GBP
|
358,800,000
GBP
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
28,800,000
GBP
|
27,400,000
GBP
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
2,125,800,000
GBP
|
884,800,000
GBP
|
299,400,000
GBP
|
| Miscellaneous current assets [abstract] | |||
| Current finance lease receivables |
1,600,000
GBP
|
1,900,000
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
1,542,400,000
GBP
|
2,022,600,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
398,400,000
GBP
|
–
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other non-current payables [abstract] | |||
| Non-current accruals and non-current deferred income including non-current contract liabilities [abstract] | |||
| Non-current deferred income including non-current contract liabilities [abstract] | |||
| Non-current deferred income including non-current contract liabilities |
2,300,000
GBP
|
5,400,000
GBP
|
— |
| Trade and other non-current payables |
16,300,000
GBP
|
17,500,000
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Current accruals and current deferred income including current contract liabilities [abstract] | |||
| Current deferred income including current contract liabilities [abstract] | |||
| Current deferred income including current contract liabilities |
834,500,000
GBP
|
725,500,000
GBP
|
— |
| Trade and other current payables |
661,900,000
GBP
|
497,300,000
GBP
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
6,700,000
GBP
|
13,900,000
GBP
|
— |
| Non-current derivative financial liabilities |
168,100,000
GBP
|
40,700,000
GBP
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
1,100,000
GBP
|
400,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
1,400,000
GBP
|
1,500,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
3,168,400,000
GBP
|
2,057,700,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
175,500,000
GBP
|
208,000,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
12,145,700,000
GBP
|
10,197,600,000
GBP
|
— |
| Liabilities |
4,679,400,000
GBP
|
4,151,700,000
GBP
|
— |
| Assets (liabilities) |
7,466,300,000
GBP
|
6,045,900,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
2,624,000,000
GBP
|
1,273,200,000
GBP
|
— |
| Current liabilities |
2,008,800,000
GBP
|
1,350,000,000
GBP
|
— |
| Assets less current liabilities [abstract] |