Disclosure Of Entity's Operating Segments [Text Block]
| Concept |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|
| Disclosure of entity's operating segments [text block] | — |
A. Operating
|
— | — | — | — | — | — | — |
| Disclosure of operating segments [text block] | — | — | — | — | — | — | — | — | — |
| Disclosure of operating segments [abstract] | |||||||||
| Disclosure of operating segments [line items] | |||||||||
| Tax expense (income) |
58,000,000
GBP
|
64,000,000
GBP
|
— |
50,000,000
GBP
|
62,000,000
GBP
|
— | — |
44,000,000
GBP
|
40,000,000
GBP
|
| Profit (loss) before tax | — |
296,000,000
GBP
|
— | — |
325,000,000
GBP
|
— | — |
230,000,000
GBP
|
— |
| Profit (loss) | — |
232,000,000
GBP
|
232,000,000
GBP
|
— |
263,000,000
GBP
|
263,000,000
GBP
|
186,000,000
GBP
|
186,000,000
GBP
|
— |
| Cash flows from (used in) operating activities | — |
600,000,000
GBP
|
— | — |
563,000,000
GBP
|
— | — |
548,000,000
GBP
|
— |
| Cash flows from (used in) investing activities | — |
1,197,000,000
GBP
|
— | — |
441,000,000
GBP
|
— | — |
497,000,000
GBP
|
— |
| Cash flows from (used in) financing activities | — |
1,323,000,000
GBP
|
— | — |
417,000,000
GBP
|
— | — |
229,000,000
GBP
|
— |