Statement Of Comprehensive Income [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|
| Statement of comprehensive income [abstract] | ||
| Profit (loss) |
3,509,000,000
GBP
|
3,689,000,000
GBP
|
| Other comprehensive income [abstract] | ||
| Other comprehensive income that will not be reclassified to profit or loss, net of tax |
107,000,000
GBP
|
410,000,000
GBP
|
| Other comprehensive income that will be reclassified to profit or loss, net of tax |
191,000,000
GBP
|
660,000,000
GBP
|
| Other comprehensive income |
298,000,000
GBP
|
1,070,000,000
GBP
|
| Comprehensive income |
3,211,000,000
GBP
|
2,619,000,000
GBP
|
| Comprehensive income attributable to [abstract] | ||
| Comprehensive income, attributable to non-controlling interests |
1,000,000
GBP
|
5,000,000
GBP
|