Statement Of Comprehensive Income [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|
| Statement of comprehensive income [abstract] | ||
| Profit (loss) |
2,907,000,000
GBP
|
536,000,000
GBP
|
| Other comprehensive income [abstract] | ||
| Other comprehensive income that will not be reclassified to profit or loss, net of tax |
373,000,000
GBP
|
41,000,000
GBP
|
| Other comprehensive income that will be reclassified to profit or loss, net of tax |
22,000,000
GBP
|
123,000,000
GBP
|
| Other comprehensive income |
351,000,000
GBP
|
164,000,000
GBP
|
| Comprehensive income |
2,556,000,000
GBP
|
372,000,000
GBP
|
| Comprehensive income attributable to [abstract] | ||
| Comprehensive income, attributable to non-controlling interests |
5,000,000
GBP
|
4,000,000
GBP
|