Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
821,000,000
GBP
|
777,000,000
GBP
|
2,599,000,000
GBP
|
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
3,094,000,000
GBP
|
3,351,000,000
GBP
|
6,846,000,000
GBP
|
| Investment property [abstract] | |||
| Investment property |
69,000,000
GBP
|
114,000,000
GBP
|
62,000,000
GBP
|
| Trade and other non-current receivables [abstract] | |||
| Other non-current receivables |
1,201,000,000
GBP
|
859,000,000
GBP
|
745,000,000
GBP
|
| Miscellaneous non-current assets [abstract] | |||
| Non-current derivative financial assets |
12,000,000
GBP
|
46,000,000
GBP
|
36,000,000
GBP
|
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
949,000,000
GBP
|
815,000,000
GBP
|
1,540,000,000
GBP
|
| Classes of current inventories [abstract] | |||
| Current inventories |
528,000,000
GBP
|
513,000,000
GBP
|
1,028,000,000
GBP
|
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
88,000,000
GBP
|
58,000,000
GBP
|
355,000,000
GBP
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | |||
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners |
–
GBP
|
18,000,000
GBP
|
–
GBP
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
10,000,000
GBP
|
13,000,000
GBP
|
38,000,000
GBP
|
| Miscellaneous assets [abstract] | |||
| Net defined benefit asset |
–
GBP
|
–
GBP
|
93,000,000
GBP
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
1,401,000,000
GBP
|
576,000,000
GBP
|
1,433,000,000
GBP
|
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
8,000,000
GBP
|
54,000,000
GBP
|
63,000,000
GBP
|
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other non-current payables [abstract] | |||
| Other non-current payables |
469,000,000
GBP
|
426,000,000
GBP
|
507,000,000
GBP
|
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
1,510,000,000
GBP
|
1,286,000,000
GBP
|
2,463,000,000
GBP
|
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
59,000,000
GBP
|
99,000,000
GBP
|
581,000,000
GBP
|
| Non-current derivative financial liabilities |
115,000,000
GBP
|
64,000,000
GBP
|
141,000,000
GBP
|
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
72,000,000
GBP
|
42,000,000
GBP
|
86,000,000
GBP
|
| Issued capital [abstract] | |||
| Issued capital |
1,000,000
GBP
|
309,000,000
GBP
|
309,000,000
GBP
|
| Retained earnings [abstract] | |||
| Retained earnings |
3,778,000,000
GBP
|
1,182,000,000
GBP
|
4,379,000,000
GBP
|
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
286,000,000
GBP
|
273,000,000
GBP
|
638,000,000
GBP
|
| Miscellaneous equity [abstract] | |||
| Capital redemption reserve |
–
GBP
|
753,000,000
GBP
|
753,000,000
GBP
|
| Merger reserve |
109,000,000
GBP
|
109,000,000
GBP
|
109,000,000
GBP
|
| Net assets (liabilities) [abstract] | |||
| Assets |
7,436,000,000
GBP
|
7,104,000,000
GBP
|
14,179,000,000
GBP
|
| Liabilities |
4,592,000,000
GBP
|
3,537,000,000
GBP
|
7,011,000,000
GBP
|
| Assets (liabilities) |
2,844,000,000
GBP
|
3,567,000,000
GBP
|
7,168,000,000
GBP
|
| Net current assets (liabilities) [abstract] | |||
| Current assets |
1,580,000,000
GBP
|
1,423,000,000
GBP
|
2,990,000,000
GBP
|
| Current liabilities |
1,751,000,000
GBP
|
1,640,000,000
GBP
|
3,094,000,000
GBP
|
| Current assets (liabilities) |
171,000,000
GBP
|
217,000,000
GBP
|
104,000,000
GBP
|
| Assets less current liabilities [abstract] | |||
| Net debt |
1,321,000,000
GBP
|
572,000,000
GBP
|
— |