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 |
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 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||
| Profit (loss) |
46,000,000
SEK
|
— | — |
174,000,000
SEK
|
128,000,000
SEK
|
174,000,000
SEK
|
65,000,000
SEK
|
74,000,000
SEK
|
— |
9,000,000
SEK
|
65,000,000
SEK
|
— |
| Other comprehensive income [abstract] | ||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] | ||||||||||||
| Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans | — | — | — | — |
1,000,000
SEK
|
— | — |
0
SEK
|
— | — | — | — |
| 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 | — | — | — | — |
17,000,000
SEK
|
— | — |
65,000,000
SEK
|
— | — | — | — |
| Hedges of net investment in foreign operations [abstract] | ||||||||||||
| Other comprehensive income, net of tax, hedges of net investments in foreign operations | — | — | — | — |
2,000,000
SEK
|
— | — |
28,000,000
SEK
|
— | — | — | — |
| Financial assets measured at fair value through other comprehensive income [abstract] | ||||||||||||
| Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income | — | — | — | — |
10,000,000
SEK
|
— | — |
47,000,000
SEK
|
— | — | — | — |
| Other comprehensive income |
1,000,000
SEK
|
77,000,000
SEK
|
14,000,000
SEK
|
24,000,000
SEK
|
25,000,000
SEK
|
87,000,000
SEK
|
— |
11,000,000
SEK
|
33,000,000
SEK
|
3,000,000
SEK
|
14,000,000
SEK
|
47,000,000
SEK
|
| Comprehensive income |
45,000,000
SEK
|
77,000,000
SEK
|
14,000,000
SEK
|
198,000,000
SEK
|
153,000,000
SEK
|
261,000,000
SEK
|
65,000,000
SEK
|
85,000,000
SEK
|
33,000,000
SEK
|
6,000,000
SEK
|
79,000,000
SEK
|
47,000,000
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — |
198,000,000
SEK
|
— | — |
79,000,000
SEK
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — |
45,000,000
SEK
|
— | — |
6,000,000
SEK
|
— | — | — | — |