Statement Of Changes In Equity [Abstract]
| Concept |
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 |
|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||
| Statement of changes in equity [line items] | ||||
| Increase (decrease) through transactions with owners, equity |
475,000,000
SEK
|
475,000,000
SEK
|
4,000,000
SEK
|
4,000,000
SEK
|