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 |
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] | |||||||||||||||||||||
| Property, plant and equipment |
28 304
SEK
|
— | — | — | — |
27 043
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
30,000,000
SEK
|
— | — | — | — |
30,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investment property |
28 250
SEK
|
— | — | — | — |
26 994
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method |
673,000,000
SEK
|
— | — | — | — |
871,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
167,000,000
SEK
|
— | — | — | — |
217,000,000
SEK
|
— | — | — | — | — | — |
171,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Assets |
29 773
SEK
|
— | — | — | — |
29 164
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital |
12,000,000
SEK
|
— | — | — | — |
12,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium |
2 400
SEK
|
— | — | — | — |
2 400
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
12 480
SEK
|
10 068
SEK
|
2 400
SEK
|
12,000,000
SEK
|
12 480
SEK
|
13 698
SEK
|
2 400
SEK
|
11 286
SEK
|
12,000,000
SEK
|
13 698
SEK
|
8 524
SEK
|
11 068
SEK
|
10 936
SEK
|
132,000,000
SEK
|
2 400
SEK
|
8 656
SEK
|
11 068
SEK
|
12,000,000
SEK
|
10 936
SEK
|
2 400
SEK
|
12,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities |
2 270
SEK
|
— | — | — | — |
2 503
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
29 773
SEK
|
— | — | — | — |
29 164
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |