Statement Of Changes In Equity [Abstract]
| Concept |
As at 2025-04-30 |
As at 2025-04-30 |
2024-05-01 to 2025-04-30 |
As at 2025-04-30 |
2024-05-01 to 2025-04-30 |
2024-05-01 to 2025-04-30 |
2024-05-01 to 2025-04-30 |
As at 2025-04-30 |
As at 2025-04-30 |
As at 2025-04-30 |
2023-05-01 to 2024-04-30 |
2023-05-01 to 2024-04-30 |
As at 2024-04-30 |
2023-05-01 to 2024-04-30 |
As at 2024-04-30 |
As at 2024-04-30 |
As at 2024-04-30 |
2023-05-01 to 2024-04-30 |
As at 2024-04-30 |
As at 2024-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
2007-05-01 to 2008-07-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||
| Equity |
183,000,000
SEK
|
8 2 , 0
SEK
|
— |
9 0 , 4
SEK
|
— | — | — |
2 400,3
SEK
|
996,000,000
SEK
|
2 345,8
SEK
|
— | — |
1 849,3
SEK
|
— |
8 2 , 0
SEK
|
563,000,000
SEK
|
1 723,8
SEK
|
— |
9 , 4
SEK
|
9 0 , 4
SEK
|
1 437,4
SEK
|
1 305,6
SEK
|
29 ,5
SEK
|
702,000,000
SEK
|
8 2 , 0
SEK
|
9 0 , 4
SEK
|
— |
| Changes in equity [abstract] | |||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||
| Profit (loss) | — | — |
8,822,000,000
SEK
|
— | — | — |
8,822,000,000
SEK
|
— | — | — | — | — | — |
5,086,000,000
SEK
|
— | — | — |
5,086,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income | — | — | — | — |
278,000,000
SEK
|
433,000,000
SEK
|
774,000,000
SEK
|
— | — | — |
201,000,000
SEK
|
1 3 , 8
SEK
|
— |
31,000,000
SEK
|
— | — | — |
93,000,000
SEK
|
— | — | — | — | — | — | — | — |
63,000,000
SEK
|
| Comprehensive income | — | — | — | — | — | — |
8,048,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
4,993,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — |
2,695,000,000
SEK
|
— | — | — |
2,695,000,000
SEK
|
— | — | — | — | — | — |
950,000,000
SEK
|
— | — | — |
950,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — |
1 5 , 7
SEK
|
— | — | — |
1 5 , 7
SEK
|
— | — | — | — | — | — |
7 , 8
SEK
|
— | — | — |
7 , 8
SEK
|
— | — | — | — | — | — | — | — | — |