Analysis Of Income And Expense [Abstract]
| Concept |
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 |
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 |
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 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||||
| Revenue | — | — |
7,537,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6,650,000,000
GBP
|
— |
| Material income and expense [abstract] | ||||||||||||||||||||
| Operating expense | — | — |
1,364,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,431,000,000
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 | — | — |
593,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
101,000,000
GBP
|
— |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — |
49,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
38,000,000
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 | — | — |
13,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
13,000,000
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 | — | — |
1,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
71,000,000
GBP
|
— |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — |
5,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
19,000,000
GBP
|
— |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income |
–
GBP
|
–
GBP
|
193,000,000
GBP
|
375,000,000
GBP
|
6,000,000
GBP
|
–
GBP
|
–
GBP
|
187,000,000
GBP
|
–
GBP
|
562,000,000
GBP
|
4,000,000
GBP
|
–
GBP
|
–
GBP
|
1,208,000,000
GBP
|
–
GBP
|
–
GBP
|
106,000,000
GBP
|
–
GBP
|
1,212,000,000
GBP
|
1,102,000,000
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — |
187,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,208,000,000
GBP
|
— |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — |
6,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,000,000
GBP
|
— |