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 |
1,757,000,000
GBP
|
1,563,000,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
28,436,000,000
GBP
|
27,195,000,000
GBP
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current net defined benefit asset |
25,000,000
GBP
|
11,000,000
GBP
|
— |
| Non-current derivative financial assets |
44,000,000
GBP
|
12,000,000
GBP
|
— |
| Other non-current assets |
132,000,000
GBP
|
8,000,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
1,881,000,000
GBP
|
2,207,000,000
GBP
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
1,348,000,000
GBP
|
951,000,000
GBP
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
684,000,000
GBP
|
414,000,000
GBP
|
333,000,000
GBP
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
50,000,000
GBP
|
5,000,000
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
10,003,000,000
GBP
|
87,000,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings |
437,000,000
GBP
|
79,000,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Current borrowings and current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
3,621,000,000
GBP
|
3,002,000,000
GBP
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
161,000,000
GBP
|
253,000,000
GBP
|
— |
| Non-current derivative financial liabilities |
175,000,000
GBP
|
1,000,000
GBP
|
— |
| Other non-current liabilities |
22,000,000
GBP
|
8,000,000
GBP
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
31,000,000
GBP
|
18,000,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
92,000,000
GBP
|
1,000,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
26,730,000,000
GBP
|
37,538,000,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
1,046,000,000
GBP
|
448,000,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
34,815,000,000
GBP
|
34,451,000,000
GBP
|
— |
| Liabilities |
18,358,000,000
GBP
|
7,971,000,000
GBP
|
— |
| Assets (liabilities) |
16,457,000,000
GBP
|
26,480,000,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
4,059,000,000
GBP
|
5,251,000,000
GBP
|
— |
| Current liabilities |
4,370,000,000
GBP
|
4,238,000,000
GBP
|
— |
| Assets less current liabilities [abstract] |