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 | — | — | — |
4,000,000
SEK
|
— |
5,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — |
10,000,000
SEK
|
— |
12,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Investment property | — | — | — |
5 386
SEK
|
— |
4 623
SEK
|
— | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
1,000,000
SEK
|
— |
1,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
2,000,000
SEK
|
— |
-
SEK
|
— | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
5 410
SEK
|
— |
4 652
SEK
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||
| Current tax assets, current | — | — | — |
8,000,000
SEK
|
— |
6,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
29,000,000
SEK
|
— |
52,000,000
SEK
|
— | — | — | — |
218,000,000
SEK
|
— | — | — | — |
| Current assets | — | — | — |
108,000,000
SEK
|
— |
163,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Assets | — | — | — |
5 518
SEK
|
— |
4 815
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — | — | — |
109,000,000
SEK
|
— |
61,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
503,000,000
SEK
|
— |
51 2
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity |
109,000,000
SEK
|
504,000,000
SEK
|
2 071
SEK
|
2 684
SEK
|
-
SEK
|
1 864
SEK
|
51 2
SEK
|
61,000,000
SEK
|
-
SEK
|
1 291
SEK
|
1 0 49
SEK
|
194,000,000
SEK
|
1,000,000
SEK
|
808,000,000
SEK
|
48,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||
| Deferred tax liabilities | — | — | — |
194,000,000
SEK
|
— |
185,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
1 673
SEK
|
— |
2 700
SEK
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||
| Current tax liabilities, current | — | — | — |
9,000,000
SEK
|
— |
5,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
1 161
SEK
|
— |
2 51
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
5 518
SEK
|
— |
4 815
SEK
|
— | — | — | — | — | — | — | — | — |