Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Property, plant and equipment [abstract] | ||
| Property, plant and equipment |
201,000,000
GBP
|
187,000,000
GBP
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets and goodwill |
1, 61 9
GBP
|
704,000,000
GBP
|
| Investments accounted for using equity method [abstract] | ||
| Investments accounted for using equity method |
267,000,000
GBP
|
274,000,000
GBP
|
| Trade and other receivables [abstract] | ||
| Trade and other receivables |
907,000,000
GBP
|
680,000,000
GBP
|
| Categories of financial assets [abstract] | ||
| Financial assets |
2,93 9
GBP
|
4,316,000,000
GBP
|
| Cash and cash equivalents [abstract] | ||
| Cash and cash equivalents |
1,13 3
GBP
|
1,904,000,000
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 |
87,000,000
GBP
|
–
GBP
|
| Miscellaneous assets [abstract] | ||
| Net defined benefit asset |
831,000,000
GBP
|
1,607,000,000
GBP
|
| Other assets |
92,000,000
GBP
|
105,000,000
GBP
|
| Classes of other provisions [abstract] | ||
| Other provisions [abstract] | ||
| Other provisions |
97,000,000
GBP
|
49,000,000
GBP
|
| Trade and other payables [abstract] | ||
| Accruals and deferred income including contract liabilities [abstract] | ||
| Deferred income including contract liabilities [abstract] | ||
| Deferred income other than contract liabilities |
3,000,000
GBP
|
5,000,000
GBP
|
| Miscellaneous liabilities [abstract] | ||
| Net defined benefit liability |
12,000,000
GBP
|
38,000,000
GBP
|
| Derivative financial liabilities |
1,000,000
GBP
|
5,000,000
GBP
|
| Subordinated liabilities [abstract] | ||
| Subordinated liabilities |
621,000,000
GBP
|
644,000,000
GBP
|
| Investment contracts liabilities |
773,000,000
GBP
|
1, 088
GBP
|
| Other liabilities |
8,000,000
GBP
|
8,000,000
GBP
|
| Issued capital [abstract] | ||
| Issued capital |
280,000,000
GBP
|
305,000,000
GBP
|
| Retained earnings [abstract] | ||
| Retained earnings |
5 ,0 21
GBP
|
5, 775
GBP
|
| Net assets (liabilities) [abstract] | ||
| Assets |
9,24 7
GBP
|
11, 41 8
GBP
|
| Liabilities |
3,37 0
GBP
|
3,562,000,000
GBP
|
| Assets less current liabilities [abstract] |