Statement Of Financial Position [Abstract]
| Concept |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — |
137,000,000
SEK
|
— | — | — | — | — | — | — |
164,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||||||||
| Cash and cash equivalents | — | — | — |
5 247
SEK
|
— | — | — | — | — | — | — |
3 916
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
5 265
SEK
|
— | — | — | — | — |
| Assets | — | — | — |
44 465
SEK
|
— | — | — | — | — | — | — |
37 977
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||
| Issued capital | — | — | — |
21,000,000
SEK
|
— | — | — | — | — | — | — |
21,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
3 147
SEK
|
— | — | — | — | — | — | — |
2 421
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — |
2 323
SEK
|
— | — | — | — | — | — | — |
2 324
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
3 147
SEK
|
2 330
SEK
|
500,000,000
SEK
|
5 990
SEK
|
7,000,000
SEK
|
21,000,000
SEK
|
2 421
SEK
|
2 330
SEK
|
21,000,000
SEK
|
6,000,000
SEK
|
500,000,000
SEK
|
5 266
SEK
|
3 467
SEK
|
10,000,000
SEK
|
500,000,000
SEK
|
6,000,000
SEK
|
1,000,000
SEK
|
-
SEK
|
500,000,000
SEK
|
6,000,000
SEK
|
1,000,000
SEK
|
500,000,000
SEK
|
3,000,000
SEK
|
1 313
SEK
|
3 963
SEK
|
3,000,000
SEK
|
2 143
SEK
|
1 313
SEK
|
10,000,000
SEK
|
2 147
SEK
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — |
162,000,000
SEK
|
— | — | — | — | — | — | — |
123,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — |
38 475
SEK
|
— | — | — | — | — | — | — |
32 711
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
44 465
SEK
|
— | — | — | — | — | — | — |
37 977
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |