Disclosure Of Effect Of Changes In Foreign Exchange Rates [Text Block]
| Concept |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of effect of changes in foreign exchange rates [text block] | — | — | — | — | — | — | — | — | — | — |
| Foreign exchange gain (loss) [abstract] | ||||||||||
| Foreign exchange gain (loss) | — | — | — | — |
6,000,000
GBP
|
— | — | — |
16,000,000
GBP
|
— |
| Reserve of exchange differences on translation |
2,000,000
GBP
|
— | — | — | — | — | — | — | — |
6,000,000
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] | ||||||||||
| Non-current assets |
17,538,000,000
GBP
|
— | — | — | — | — | — | — | — |
13,570,000,000
GBP
|
| Current assets |
281,000,000
GBP
|
— | — | — | — | — | — | — | — |
378,000,000
GBP
|
| Non-current liabilities |
855,000,000
GBP
|
— | — | — | — | — | — | — | — |
870,000,000
GBP
|
| Current liabilities |
120,000,000
GBP
|
— | — | — | — | — | — | — | — |
324,000,000
GBP
|
| Revenue | — | — | — | — |
4,666,000,000
GBP
|
— | — | — |
4,079,000,000
GBP
|
— |
| Profit (loss) | — | — |
4,064,000,000
GBP
|
509,000,000
GBP
|
4,573,000,000
GBP
|
3,547,000,000
GBP
|
— |
466,000,000
GBP
|
4,013,000,000
GBP
|
— |
| Other comprehensive income | — | — | — | — |
12,000,000
GBP
|
— | — | — |
1,000,000
GBP
|
— |
| Comprehensive income | — |
4,000,000
GBP
|
4,072,000,000
GBP
|
509,000,000
GBP
|
4,585,000,000
GBP
|
3,549,000,000
GBP
|
1,000,000
GBP
|
466,000,000
GBP
|
4,014,000,000
GBP
|
— |