Statement Of Changes In Equity [Abstract]
| Concept |
2024-04-01 to 2025-03-31 |
As at 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
As at 2025-03-31 |
2024-04-01 to 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
2024-04-01 to 2025-03-31 |
As at 2025-03-31 |
2024-04-01 to 2025-03-31 |
As at 2025-03-31 |
2024-04-01 to 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
213,000,000
GBP
|
— | — | — |
5,710,000,000
GBP
|
— |
–
GBP
|
1,589,000,000
GBP
|
— |
253,000,000
GBP
|
— |
3,642,000,000
GBP
|
— |
5,710,000,000
GBP
|
–
GBP
|
13,000,000
GBP
|
— | — | — |
213,000,000
GBP
|
— |
13,000,000
GBP
|
5,299,000,000
GBP
|
— | — |
13,000,000
GBP
|
3,528,000,000
GBP
|
— |
1,310,000,000
GBP
|
— | — |
235,000,000
GBP
|
5,312,000,000
GBP
|
— |
–
GBP
|
— | — | — | — |
13,000,000
GBP
|
5,512,000,000
GBP
|
5,525,000,000
GBP
|
2,000,000
GBP
|
1,308,000,000
GBP
|
234,000,000
GBP
|
13,000,000
GBP
|
3,742,000,000
GBP
|
213,000,000
GBP
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
— |
338,000,000
GBP
|
63,000,000
GBP
|
275,000,000
GBP
|
— |
338,000,000
GBP
|
— | — |
338,000,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — |
265,000,000
GBP
|
266,000,000
GBP
|
— | — |
1,000,000
GBP
|
— |
–
GBP
|
1,000,000
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
–
GBP
|
1,000,000
GBP
|
2,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income |
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — | — | — | — | — |
2,000,000
GBP
|
— |
2,000,000
GBP
|
2,000,000
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income |
–
GBP
|
— |
338,000,000
GBP
|
— | — | — |
338,000,000
GBP
|
— | — |
338,000,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — | — | — | — | — |
3,000,000
GBP
|
— |
2,000,000
GBP
|
1,000,000
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
–
GBP
|
1,000,000
GBP
|
2,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Issue of equity |
–
GBP
|
— |
297,000,000
GBP
|
— | — | — |
297,000,000
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
— |
18,000,000
GBP
|
— | — | — |
–
GBP
|
–
GBP
|
279,000,000
GBP
|
— |
–
GBP
|
— | — | — | — | — | — |
3,000,000
GBP
|
— |
–
GBP
|
3,000,000
GBP
|
— | — |
–
GBP
|
— |
2,000,000
GBP
|
1,000,000
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
–
GBP
|
— |
221,000,000
GBP
|
— | — | — |
221,000,000
GBP
|
— | — |
221,000,000
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — | — | — | — | — |
215,000,000
GBP
|
— |
–
GBP
|
215,000,000
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
–
GBP
|
215,000,000
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |