Statement Of Changes In Equity [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||
| Equity | — |
26 922,4
SEK
|
6,281,000,000
SEK
|
28 606,9
SEK
|
1 056,4
SEK
|
— |
1 056,4
SEK
|
6,281,000,000
SEK
|
27 104,1
SEK
|
— |
28 788,6
SEK
|
— |
31 262,0
SEK
|
1 056,4
SEK
|
29 577,5
SEK
|
6,281,000,000
SEK
|
| Changes in equity [abstract] | ||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) |
3,646,000,000
SEK
|
— | — | — | — |
3,646,000,000
SEK
|
— | — | — |
1 927,2
SEK
|
— |
1 927,2
SEK
|
— | — | — | — |
| Other comprehensive income |
–
SEK
|
— | — | — | — |
–
SEK
|
— | — | — |
–
SEK
|
— |
–
SEK
|
— | — | — | — |
| Comprehensive income |
3,646,000,000
SEK
|
— | — | — | — |
3,646,000,000
SEK
|
— | — | — |
1 927,2
SEK
|
— |
1 927,2
SEK
|
— | — | — | — |