Statement Of Changes In Equity [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||
| Statement of changes in equity [line items] | ||||||||||||
| Dividends recognised as distributions to owners of parent | — |
4 916
SEK
|
— | — | — | — |
4 741
SEK
|
— | — |
4 390
SEK
|
— | — |
| Increase (decrease) through acquisition of subsidiary, equity |
10,000,000
SEK
|
13,000,000
SEK
|
10,000,000
SEK
|
3,000,000
SEK
|
1 919
SEK
|
4 042
SEK
|
5 961
SEK
|
4 042
SEK
|
1,000,000
SEK
|
2,000,000
SEK
|
1,000,000
SEK
|
1,000,000
SEK
|
| Increase (decrease) through disposal of subsidiary, equity | — | — | — | — | — | — | — | — | — |
57,000,000
SEK
|
57,000,000
SEK
|
— |