Statement Of Changes In Equity [Abstract]
| Concept |
2024-04-01 to 2025-03-30 |
As at 2025-03-30 |
2024-04-01 to 2025-03-30 |
As at 2025-03-30 |
2024-04-01 to 2025-03-30 |
As at 2025-03-30 |
As at 2025-03-30 |
As at 2025-03-30 |
As at 2025-03-30 |
As at 2025-03-30 |
2024-04-01 to 2025-03-30 |
2024-04-01 to 2025-03-30 |
2024-04-01 to 2025-03-30 |
As at 2025-03-30 |
2024-04-01 to 2025-03-30 |
2024-04-01 to 2025-03-30 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 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 |
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 |
2023-04-01 to 2024-03-31 |
As at 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||
| Equity | — |
1,749,100,000
GBP
|
— |
366,400,000
GBP
|
— |
9,600,000
GBP
|
700,000
GBP
|
–
GBP
|
1,400,000,000
GBP
|
400,000
GBP
|
— | — | — |
6,600,000
GBP
|
— | — |
1,400,000,000
GBP
|
— |
900,000
GBP
|
— |
1,747 .6
GBP
|
9,600,000
GBP
|
–
GBP
|
— |
400,000
GBP
|
368,200,000
GBP
|
— | — | — | — | — |
9,700,000
GBP
|
500,000
GBP
|
404,200,000
GBP
|
10,000,000
GBP
|
–
GBP
|
–
GBP
|
1,782,200,000
GBP
|
1,400,000,000
GBP
|
12,500,000
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
4,500,000
GBP
|
— |
–
GBP
|
— |
4,500,000
GBP
|
— | — | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
69,200,000
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
69,200,000
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income |
4,000,000
GBP
|
— |
–
GBP
|
— |
700,000
GBP
|
— | — | — | — | — |
3,100,000
GBP
|
–
GBP
|
–
GBP
|
— |
200,000
GBP
|
–
GBP
|
— |
–
GBP
|
— |
1,400,000
GBP
|
— | — | — |
900,000
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
500,000
GBP
|
2,800,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income |
500,000
GBP
|
— |
–
GBP
|
— |
3,800,000
GBP
|
— | — | — | — | — |
3,100,000
GBP
|
–
GBP
|
–
GBP
|
— |
200,000
GBP
|
–
GBP
|
— |
–
GBP
|
— |
1,400,000
GBP
|
— | — | — |
68,300,000
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
69,700,000
GBP
|
2,800,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Issue of equity |
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
9,500,000
GBP
|
— |
–
GBP
|
— |
9,500,000
GBP
|
— | — | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
57 .8
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
57 .8
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
7. 2
GBP
|
— |
–
GBP
|
— |
7. 2
GBP
|
— | — | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — | — |
4,000,000
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
4,000,000
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |