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) | — |
298,000,000
SEK
|
— | — |
1,298,000,000
SEK
|
— |
| Other comprehensive income [abstract] | ||||||
| Other comprehensive income | — |
59,000,000
SEK
|
— | — |
40,000,000
SEK
|
— |
| Comprehensive income |
59,000,000
SEK
|
358,000,000
SEK
|
298,000,000
SEK
|
1,298,000,000
SEK
|
1,258,000,000
SEK
|
40,000,000
SEK
|
| Comprehensive income attributable to [abstract] | ||||||
| Comprehensive income, attributable to owners of parent | — |
358,000,000
SEK
|
— | — |
1,258,000,000
SEK
|
— |