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 |
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] | ||||||||||||
| Revenue | — | — | — | — | — | — | — | — | — | — | — | — |
| Insurance revenue |
379,000,000
GBP
|
— | — | — | — |
361,000,000
GBP
|
— | — | — | — |
—
GBP
|
— |
| Employee benefits expense |
1,706,000,000
GBP
|
— | — | — | — |
1,698,000,000
GBP
|
— | — | — | — |
2,023,000,000
GBP
|
— |
| Insurance service expenses from insurance contracts issued |
255,000,000
GBP
|
— | — | — | — |
240,000,000
GBP
|
— | — | — | — |
—
GBP
|
— |
| Profit (loss) from operating activities |
2,195,000,000
GBP
|
— | — | — | — |
1,169,000,000
GBP
|
— | — | — | — |
832,000,000
GBP
|
— |
| Insurance finance income (expenses) from insurance contracts issued recognised in profit or loss |
1,184,000,000
GBP
|
— | — | — | — |
1,106,000,000
GBP
|
— | — | — | — |
—
GBP
|
— |
| Share of profit (loss) of associates and joint ventures accounted for using equity method |
43,000,000
GBP
|
— | — | — | — |
30,000,000
GBP
|
— | — | — | — |
191,000,000
GBP
|
— |
| Profit (loss) before tax |
2,152,000,000
GBP
|
— | — | — | — |
1,199,000,000
GBP
|
— | — | — | — |
1,023,000,000
GBP
|
— |
| Tax expense (income) |
427,000,000
GBP
|
— | — | — | — |
646,000,000
GBP
|
— | — | — | — |
23,000,000
GBP
|
— |
| Profit (loss) |
1,725,000,000
GBP
|
22,000,000
GBP
|
1,703,000,000
GBP
|
1,703,000,000
GBP
|
563,000,000
GBP
|
553,000,000
GBP
|
563,000,000
GBP
|
10,000,000
GBP
|
5,000,000
GBP
|
1,041,000,000
GBP
|
1,046,000,000
GBP
|
1,041,000,000
GBP
|
| Profit (loss), attributable to [abstract] | ||||||||||||
| Profit (loss), attributable to owners of parent |
1,703,000,000
GBP
|
— | — | — | — |
563,000,000
GBP
|
— | — | — | — |
1,041,000,000
GBP
|
— |
| Profit (loss), attributable to non-controlling interests |
22,000,000
GBP
|
— | — | — | — |
10,000,000
GBP
|
— | — | — | — |
5,000,000
GBP
|
— |