Analysis Of Income And Expense [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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||
| Interest income | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Interest income on other financial assets | — |
54,000,000.000000
GBP
|
— | — | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||||
| Investment income | — |
2,173,000,000.000000
GBP
|
— | — | — | — | — | — | — | — | — | — |
5,189,000,000.000000
GBP
|
— | — | — | — | — |
| Operating expense | — |
104,000,000.000000
GBP
|
— | — | — | — | — | — | — | — | — | — |
93,000,000.000000
GBP
|
— | — | — | — | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||||
| Share of profit (loss) of associates accounted for using equity method | — |
14,000,000.000000
GBP
|
— | — | — | — | — | — | — | — | — | — |
3,000,000.000000
GBP
|
— | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||
| Comprehensive income |
–
GBP
|
129,000,000.000000
GBP
|
–
GBP
|
129,000,000.000000
GBP
|
–
GBP
|
129,000,000.000000
GBP
|
–
GBP
|
129,000,000.000000
GBP
|
–
GBP
|
–
GBP
|
362,000,000.000000
GBP
|
–
GBP
|
362,000,000.000000
GBP
|
–
GBP
|
362,000,000.000000
GBP
|
–
GBP
|
362,000,000.000000
GBP
|
–
GBP
|