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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||
| Property, plant and equipment |
64,000,000
SEK
|
— | — | — | — | — | — |
67,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
35,000,000
SEK
|
— | — | — | — | — | — |
39,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill |
59,000,000
SEK
|
— | — | — | — | — | — |
62,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
481,000,000
SEK
|
— | — | — | — | — | — |
441,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets |
45,000,000
SEK
|
— | — | — | — | — | — |
58,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Non-current assets |
649,000,000
SEK
|
— | — | — | — | — | — |
628,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||
| Current inventories |
104,000,000
SEK
|
— | — | — | — | — | — |
94,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Trade and other current receivables |
287,000,000
SEK
|
— | — | — | — | — | — |
291,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
275,000,000
SEK
|
— | — | — | — | — | — |
263,000,000
SEK
|
— | — | — | — | — | — |
329,000,000
SEK
|
— | — | — |
| Current assets |
666,000,000
SEK
|
— | — | — | — | — | — |
649,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Assets |
1,315,000,000
SEK
|
— | — | — | — | — | — |
1,277,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital |
71,000,000
SEK
|
— | — | — | — | — | — |
71,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Retained earnings |
604,000,000
SEK
|
— | — | — | — | — | — |
556,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
1,138,000,000
SEK
|
604,000,000
SEK
|
449,000,000
SEK
|
1,138,000,000
SEK
|
15,000,000
SEK
|
71,000,000
SEK
|
1,088,000,000
SEK
|
1,088,000,000
SEK
|
71,000,000
SEK
|
556,000,000
SEK
|
12,000,000
SEK
|
449,000,000
SEK
|
581,000,000
SEK
|
1,117,000,000
SEK
|
— |
16,000,000
SEK
|
449,000,000
SEK
|
71,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||
| Other non-current financial liabilities |
24,000,000
SEK
|
— | — | — | — | — | — |
32,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
24,000,000
SEK
|
— | — | — | — | — | — |
32,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||
| Trade and other current payables |
34,000,000
SEK
|
— | — | — | — | — | — |
34,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities |
153,000,000
SEK
|
— | — | — | — | — | — |
157,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities |
177,000,000
SEK
|
— | — | — | — | — | — |
189,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
1,315,000,000
SEK
|
— | — | — | — | — | — |
1,277,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |