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 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 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 |
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 |
2 175
SEK
|
— | — | — | — | — | — | — |
1 164
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
6 0
SEK
|
— | — | — | — | — | — | — |
54,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill |
30,000,000
SEK
|
— | — | — | — | — | — | — |
25,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
−
SEK
|
— | — | — | — | — | — | — |
23,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets |
2 510
SEK
|
— | — | — | — | — | — | — |
1 432
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Cash and cash equivalents |
917,000,000
SEK
|
— | — | — | — | — | — | — |
1 220
SEK
|
— | — | — | — | — | — | — | — | — |
70,000,000
SEK
|
— | — | — | — | — |
| Current assets |
1 297
SEK
|
— | — | — | — | — | — | — |
1 483
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets |
3 807
SEK
|
— | — | — | — | — | — | — |
2 916
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital |
4,000,000
SEK
|
— | — | — | — | — | — | — |
4,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
337,000,000
SEK
|
— | — | — | — | — | — | — |
12 9
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
4 8
SEK
|
— | — | — | — | — | — | — |
8 4
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
1 887
SEK
|
— | — | — | — | — | — | — |
1 616
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
3 18
SEK
|
— | — | — | — | — | — | — |
−
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
2 206
SEK
|
337,000,000
SEK
|
318,000,000
SEK
|
4,000,000
SEK
|
1,000,000
SEK
|
1 887
SEK
|
46,000,000
SEK
|
1 499
SEK
|
1 616
SEK
|
−
SEK
|
129,000,000
SEK
|
4,000,000
SEK
|
1,000,000
SEK
|
1 616
SEK
|
1 567
SEK
|
8 5
SEK
|
64 3
SEK
|
1 435
SEK
|
6 76
SEK
|
121,000,000
SEK
|
676,000,000
SEK
|
−
SEK
|
1,000,000
SEK
|
3,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||
| Non-current provisions |
90,000,000
SEK
|
— | — | — | — | — | — | — |
62,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current non-financial liabilities |
20 0
SEK
|
— | — | — | — | — | — | — |
−
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
1 425
SEK
|
— | — | — | — | — | — | — |
1 042
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Other current financial liabilities |
2,000,000
SEK
|
— | — | — | — | — | — | — |
1,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities |
176,000,000
SEK
|
— | — | — | — | — | — | — |
2 58
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
3 807
SEK
|
— | — | — | — | — | — | — |
2 916
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |