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 |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||
| Profit (loss) |
1,000,000
SEK
|
— |
447,000,000
SEK
|
448,000,000
SEK
|
447,000,000
SEK
|
25,000,000
SEK
|
19,000,000
SEK
|
6,000,000
SEK
|
25,000,000
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] | ||||||||||
| Gains (losses) on exchange differences on translation of foreign operations, net of tax |
15,000,000
SEK
|
113,000,000
SEK
|
113,000,000
SEK
|
128,000,000
SEK
|
— | — |
135,000,000
SEK
|
5,000,000
SEK
|
130,000,000
SEK
|
130,000,000
SEK
|
| Other comprehensive income | — | — | — |
128,000,000
SEK
|
— | — |
135,000,000
SEK
|
— | — | — |
| Comprehensive income | — | — | — |
576,000,000
SEK
|
— | — |
116,000,000
SEK
|
— | — | — |
| Comprehensive income attributable to [abstract] | ||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
560,000,000
SEK
|
— | — |
105,000,000
SEK
|
— | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — |
16,000,000
SEK
|
— | — |
10,000,000
SEK
|
— | — | — |