Analysis Of Income And Expense [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
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 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||||
| Revenue | — | — | — | — | — | — | — | — |
3,468,000,000
GBP
|
— |
3,350,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||||||
| Operating expense | — | — | — | — | — | — | — | — |
826,000,000
GBP
|
— |
597,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations | — | — | — | — | — | — | — | — |
17,000,000
GBP
|
— |
195,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax [abstract] | ||||||||||||||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax | — | — | — | — | — | — | — | — |
–
GBP
|
— |
12,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — | — | — | — | — | — | — |
4,000,000
GBP
|
— |
29,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — | — | — | — | — |
1,000,000
GBP
|
— |
8,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income |
–
GBP
|
60,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
13,000,000
GBP
|
73,000,000
GBP
|
–
GBP
|
60,000,000
GBP
|
–
GBP
|
1,439,000,000
GBP
|
1,439,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1,074,000,000
GBP
|
–
GBP
|
365,000,000
GBP
|
–
GBP
|
–
GBP
|