Statement Of Changes In Equity [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||
| Equity | — |
24 849
SEK
|
333,000,000
SEK
|
29 141
SEK
|
3 960
SEK
|
-
SEK
|
21 248
SEK
|
— |
3 960
SEK
|
— |
-
SEK
|
25 541
SEK
|
— |
333,000,000
SEK
|
— | — | — |
18 380
SEK
|
4,000,000
SEK
|
3 960
SEK
|
22 668
SEK
|
333,000,000
SEK
|
| Changes in equity [abstract] | ||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||
| Profit (loss) |
4 288
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
3 757
SEK
|
— | — | — | — | — | — |
| Other comprehensive income |
-
SEK
|
— | — | — | — | — | — |
4,000,000
SEK
|
— |
4,000,000
SEK
|
— | — |
-
SEK
|
— |
-
SEK
|
4,000,000
SEK
|
-
SEK
|
— | — | — | — | — |