Statement Of Comprehensive Income [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
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 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||
| Profit (loss) |
–
GBP
|
1,9 4 0
GBP
|
83,000,000
GBP
|
1, 85 7
GBP
|
–
GBP
|
–
GBP
|
1,8 57
GBP
|
1, 9 4 0
GBP
|
–
GBP
|
–
GBP
|
1, 5 91
GBP
|
–
GBP
|
1, 6 74
GBP
|
–
GBP
|
1, 5 91
GBP
|
83,000,000
GBP
|
–
GBP
|
1 , 6 74
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, net of tax | — |
2 5
GBP
|
— | — | — |
–
GBP
|
— |
25,000,000
GBP
|
— | — | — | — |
11 6
GBP
|
— | — | — |
–
GBP
|
11 6
GBP
|
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax | — |
11,000,000
GBP
|
— | — | — |
11,000,000
GBP
|
— |
–
GBP
|
— | — | — | — |
8,000,000
GBP
|
— | — | — |
8,000,000
GBP
|
–
GBP
|
| Other comprehensive income |
–
GBP
|
1, 2 0 9
GBP
|
1 6
GBP
|
6 82
GBP
|
–
GBP
|
51 9
GBP
|
1 ,1 9 3
GBP
|
6 90
GBP
|
5 11
GBP
|
–
GBP
|
3, 6 4 8
GBP
|
1, 0 5 3
GBP
|
3,6 8 4
GBP
|
–
GBP
|
2,59 5
GBP
|
36,000,000
GBP
|
1, 0 74
GBP
|
2 , 61 0
GBP
|
| Comprehensive income |
–
GBP
|
731,000,000
GBP
|
67,000,000
GBP
|
1 ,17 5
GBP
|
–
GBP
|
519,000,000
GBP
|
664,000,000
GBP
|
1, 2 50
GBP
|
511,000,000
GBP
|
–
GBP
|
5, 239
GBP
|
1, 0 5 3
GBP
|
5, 358
GBP
|
–
GBP
|
4 ,1 8 6
GBP
|
119,000,000
GBP
|
1, 0 74
GBP
|
4, 28 4
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — |
66 4
GBP
|
— | — | — |
511,000,000
GBP
|
— |
1 ,17 5
GBP
|
— | — | — | — |
5,23 9
GBP
|
— | — | — |
1, 0 5 3
GBP
|
4 ,1 8 6
GBP
|
| Comprehensive income, attributable to non-controlling interests | — |
67,000,000
GBP
|
— | — | — |
8,000,000
GBP
|
— |
75,000,000
GBP
|
— | — | — | — |
11 9
GBP
|
— | — | — |
21,000,000
GBP
|
98,000,000
GBP
|