Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||
| Profit (loss) | — |
766,000,000
SEK
|
766,000,000
SEK
|
333,000,000
SEK
|
333,000,000
SEK
|
— |
| Other comprehensive income [abstract] | ||||||
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||
| Exchange differences on translation [abstract] | ||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — |
1,000,000
SEK
|
— | — |
3,000,000
SEK
|
— |
| Other comprehensive income |
1,000,000
SEK
|
1,000,000
SEK
|
— | — |
3,000,000
SEK
|
3,000,000
SEK
|
| Comprehensive income | — |
765,000,000
SEK
|
— | — |
330,000,000
SEK
|
— |
| Comprehensive income attributable to [abstract] | ||||||
| Comprehensive income, attributable to owners of parent | — |
725,000,000
SEK
|
— | — |
289,000,000
SEK
|
— |