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 | — | — | — | — |
18 7
SEK
|
96,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — |
97,000,000
SEK
|
66,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — |
2 391
SEK
|
794,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — |
586,000,000
SEK
|
17 2
SEK
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — |
31,000,000
SEK
|
23,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — |
23,000,000
SEK
|
21,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — |
3 484
SEK
|
1 308
SEK
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||
| Current inventories | — | — | — | — |
43 7
SEK
|
305,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — | — |
321,000,000
SEK
|
223,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Other current non-financial assets | — | — | — | — |
95,000,000
SEK
|
62,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — |
594,000,000
SEK
|
4 41
SEK
|
— | — | — | — |
311,000,000
SEK
|
— | — | — | — |
| Current assets | — | — | — | — |
1 447
SEK
|
1 031
SEK
|
— | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — |
4 931
SEK
|
2 339
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — | — | — | — |
112,000,000
SEK
|
93,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — |
1 378
SEK
|
1 229
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity |
112,000,000
SEK
|
124,000,000
SEK
|
1 378
SEK
|
2 291
SEK
|
3 657
SEK
|
1 637
SEK
|
1 229
SEK
|
93,000,000
SEK
|
34,000,000
SEK
|
281,000,000
SEK
|
1 371
SEK
|
1 063
SEK
|
266,000,000
SEK
|
50,000,000
SEK
|
92,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||
| Other non-current provisions | — | — | — | — |
3,000,000
SEK
|
5,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — |
19 3
SEK
|
71,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Other non-current financial liabilities | — | — | — | — |
1 47
SEK
|
17,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — |
569,000,000
SEK
|
285,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||
| Current provisions [abstract] | |||||||||||||||
| Other current provisions | — | — | — | — |
4,000,000
SEK
|
3,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — |
98,000,000
SEK
|
57,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Other current financial liabilities | — | — | — | — |
221,000,000
SEK
|
8,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Other current non-financial liabilities | — | — | — | — |
3 49
SEK
|
324,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — |
705,000,000
SEK
|
4 17
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — |
4 931
SEK
|
2 339
SEK
|
— | — | — | — | — | — | — | — | — |