Profit Or Loss [Abstract]
| Concept |
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 |
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] | |||||||||||
| Profit (loss) before tax |
2,100,000,000
GBP
|
— | — | — |
1,874,000,000
GBP
|
— | — | — | — |
1,888,000,000
GBP
|
— |
| Tax expense (income) |
559,000,000
GBP
|
— | — | — |
480,000,000
GBP
|
— | — | — | — |
492,000,000
GBP
|
— |
| Profit (loss) from continuing operations |
1,541,000,000
GBP
|
— | — | — |
1,394,000,000
GBP
|
— | — | — | — |
1,353,000,000
GBP
|
— |
| Profit (loss) from discontinued operations |
—
GBP
|
— | — | — |
—
GBP
|
— | — | — | — |
31,000,000
GBP
|
— |
| Profit (loss) |
1,541,000,000
GBP
|
1,541,000,000
GBP
|
1,541,000,000
GBP
|
1,394,000,000
GBP
|
1,394,000,000
GBP
|
1,394,000,000
GBP
|
—
GBP
|
19,000,000
GBP
|
1,365,000,000
GBP
|
1,384,000,000
GBP
|
1,365,000,000
GBP
|
| Profit (loss), attributable to [abstract] | |||||||||||
| Profit (loss), attributable to owners of parent |
1,541,000,000
GBP
|
— | — | — |
1,394,000,000
GBP
|
— | — | — | — |
1,365,000,000
GBP
|
— |
| Profit (loss), attributable to non-controlling interests |
—
GBP
|
— | — | — |
—
GBP
|
— | — | — | — |
19,000,000
GBP
|
— |