Statement Of Changes In Equity [Abstract]
| Concept |
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 |
|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||
| Statement of changes in equity [line items] | ||||
| Increase (decrease) through transactions with owners, equity |
51,000,000
SEK
|
3,000,000
SEK
|
96,000,000
SEK
|
150,000,000
SEK
|
| Sale or issue of treasury shares |
51,000,000
SEK
|
3,000,000
SEK
|
54,000,000
SEK
|
— |