Profit Or Loss [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||||||||||||||
| Profit (loss) [abstract] | ||||||||||||||||||
| Employee benefits expense | — | — | — |
54 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
604,000,000
GBP
|
— |
| Finance costs | — | — | — |
29,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
30,000,000
GBP
|
— |
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — | — |
2,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
22,000,000
GBP
|
— |
| Profit (loss) before tax | — | — | — |
61 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,115,000,000
GBP
|
— |
| Tax expense (income) | — | — | — |
66,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
120,000,000
GBP
|
— |
| Profit (loss) |
–
GBP
|
561,000,000
GBP
|
–
GBP
|
54 9
GBP
|
–
GBP
|
1,000,000
GBP
|
5 61
GBP
|
11,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
994,000,000
GBP
|
995,000,000
GBP
|
99 4
GBP
|
| Profit (loss), attributable to [abstract] | ||||||||||||||||||
| Profit (loss), attributable to owners of parent | — | — | — |
56 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
994,000,000
GBP
|
— |
| Profit (loss), attributable to non-controlling interests | — | — | — |
1,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,000,000
GBP
|
— |
| Earnings per share [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Earnings per share [abstract] | ||||||||||||||||||
| Earnings per share [line items] | ||||||||||||||||||
| Basic earnings per share [abstract] | ||||||||||||||||||
| Basic earnings (loss) per share | — | — | — |
26 .8
|
— | — | — | — | — | — | — | — | — | — | — | — |
0.468
|
— |
| Diluted earnings per share [abstract] | ||||||||||||||||||
| Diluted earnings (loss) per share | — | — | — |
26. 8
|
— | — | — | — | — | — | — | — | — | — | — | — |
46. 0
|
— |