Statement Of Financial Position [Abstract]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Non-current assets [abstract] | |||||||||||||||
| Property, plant and equipment | — | — | — | — |
87,000,000
SEK
|
58,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — |
19,000,000
SEK
|
27,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — |
17,000,000
SEK
|
47,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — |
509,000,000
SEK
|
511,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — |
4,000,000
SEK
|
7,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — |
616,000,000
SEK
|
622,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||
| Current inventories | — | — | — | — |
141,000,000
SEK
|
167,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — | — |
436,000,000
SEK
|
374,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — |
123,000,000
SEK
|
142,000,000
SEK
|
— | — | — | — |
275,000,000
SEK
|
— | — | — | — |
| Current assets | — | — | — | — |
700,000,000
SEK
|
683,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — |
1,316,000,000
SEK
|
1,305,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — | — | — | — |
71,000,000
SEK
|
71,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — |
606,000,000
SEK
|
584,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity |
71,000,000
SEK
|
10,000,000
SEK
|
606,000,000
SEK
|
449,000,000
SEK
|
1,136,000,000
SEK
|
1,119,000,000
SEK
|
584,000,000
SEK
|
71,000,000
SEK
|
16,000,000
SEK
|
449,000,000
SEK
|
1,138,000,000
SEK
|
604,000,000
SEK
|
449,000,000
SEK
|
15,000,000
SEK
|
71,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||
| Other non-current financial liabilities | — | — | — | — |
5,000,000
SEK
|
15,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — |
5,000,000
SEK
|
15,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||
| Trade and other current payables | — | — | — | — |
42,000,000
SEK
|
31,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — |
175,000,000
SEK
|
171,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — |
179,000,000
SEK
|
185,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — |
1,316,000,000
SEK
|
1,305,000,000
SEK
|
— | — | — | — | — | — | — | — | — |