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 |
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 |
90,000,000
SEK
|
90,000,000
SEK
|
69,000,000
SEK
|
347,000,000
SEK
|
416,000,000
SEK
|