Statement Of Comprehensive Income [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||
| Profit (loss) | — |
2 483
SEK
|
2 483
SEK
|
— |
2 358
SEK
|
2 358
SEK
|
| Other comprehensive income [abstract] | ||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans | — |
5,000,000
SEK
|
— | — |
1,000,000
SEK
|
— |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — |
–
SEK
|
— | — |
–
SEK
|
— |
| Other comprehensive income |
1 701
SEK
|
1 701
SEK
|
— |
951,000,000
SEK
|
951,000,000
SEK
|
— |
| Comprehensive income |
1 701
SEK
|
4 184
SEK
|
2 483
SEK
|
951,000,000
SEK
|
3 309
SEK
|
2 358
SEK
|
| Comprehensive income attributable to [abstract] | ||||||
| Comprehensive income, attributable to owners of parent | — |
4 184
SEK
|
— | — |
3 309
SEK
|
— |