Disclosure Of Effect Of Changes In Foreign Exchange Rates [Text Block]
| 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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of effect of changes in foreign exchange rates [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Foreign exchange gain (loss) [abstract] | |||||||||||||||||||||||
| Foreign exchange gain (loss) |
420,000,000
GBP
|
— | — | — | — | — | — | — |
711,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
512,000,000
GBP
|
— |
| Disclosure of information when currency is not exchangeable into another currency [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of information when foreign operation’s functional currency is not exchangeable into presentation currency [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of summarised financial information about foreign operation [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of summarised financial information about foreign operation [abstract] | |||||||||||||||||||||||
| Disclosure of summarised financial information about foreign operation [line items] | |||||||||||||||||||||||
| Profit (loss) |
1,725,000,000
GBP
|
1,703,000,000
GBP
|
— |
22,000,000
GBP
|
1,703,000,000
GBP
|
— | — | — |
553,000,000
GBP
|
563,000,000
GBP
|
10,000,000
GBP
|
— | — | — |
563,000,000
GBP
|
— |
5,000,000
GBP
|
— |
1,041,000,000
GBP
|
— | — |
1,046,000,000
GBP
|
1,041,000,000
GBP
|
| Other comprehensive income |
367,000,000
GBP
|
367,000,000
GBP
|
288,000,000
GBP
|
—
GBP
|
134,000,000
GBP
|
294,000,000
GBP
|
422,000,000
GBP
|
661,000,000
GBP
|
382,000,000
GBP
|
367,000,000
GBP
|
2,000,000
GBP
|
943,000,000
GBP
|
1,408,000,000
GBP
|
1,881,000,000
GBP
|
384,000,000
GBP
|
665,000,000
GBP
|
9,000,000
GBP
|
165,000,000
GBP
|
948,000,000
GBP
|
595,000,000
GBP
|
234,000,000
GBP
|
957,000,000
GBP
|
46,000,000
GBP
|
| Comprehensive income |
2,092,000,000
GBP
|
2,070,000,000
GBP
|
288,000,000
GBP
|
— |
1,569,000,000
GBP
|
294,000,000
GBP
|
422,000,000
GBP
|
661,000,000
GBP
|
935,000,000
GBP
|
196,000,000
GBP
|
12,000,000
GBP
|
943,000,000
GBP
|
1,408,000,000
GBP
|
1,881,000,000
GBP
|
947,000,000
GBP
|
665,000,000
GBP
|
4,000,000
GBP
|
165,000,000
GBP
|
93,000,000
GBP
|
595,000,000
GBP
|
234,000,000
GBP
|
89,000,000
GBP
|
1,087,000,000
GBP
|