Disclosure Of Effect Of Changes In Foreign Exchange Rates [Text Block]
| Concept |
As at 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 |
As at 2021-12-31 |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of effect of changes in foreign exchange rates [text block] | — | — |
Foreign exchange risk
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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] | |||||||||||||||||||||
| Non-current assets |
8,683,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
2,980,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current assets |
3,239,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
1,344,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities |
4,979,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
1,670,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current liabilities |
2,845,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
1,390,000,000
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
|
— | — | — | — |
| Other comprehensive income | — | — |
295,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
12,000,000
GBP
|
— |
67,000,000
GBP
|
— | — | — | — | — |
| Comprehensive income | — |
308,000,000
GBP
|
63,000,000
GBP
|
245,000,000
GBP
|
6,000,000
GBP
|
2,000,000
GBP
|
300,000,000
GBP
|
13,000,000
GBP
|
10,000,000
GBP
|
1,000,000
GBP
|
1,000,000
GBP
|
— |
3,000,000
GBP
|
275,000,000
GBP
|
276,000,000
GBP
|
119,000,000
GBP
|
177,000,000
GBP
|
1,000,000
GBP
|
5,000,000
GBP
|
58,000,000
GBP
|
52,000,000
GBP
|