Statement Of Financial Position [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Right-of-use assets | — | — | — | — | — | — |
9,000,000
SEK
|
12,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Investment property | — | — | — | — | — | — |
7 273
SEK
|
5 964
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — |
174,000,000
SEK
|
181,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
2,000,000
SEK
|
2,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — | — | — |
2,000,000
SEK
|
1,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — |
7 469
SEK
|
6 180
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Cash and cash equivalents | — | — | — | — | — | — |
780,000,000
SEK
|
41,000,000
SEK
|
— | — | — | — | — | — |
168,000,000
SEK
|
— | — | — | — | — | — |
| Current assets | — | — | — | — | — | — |
916,000,000
SEK
|
297,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
8 384
SEK
|
6 477
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
1,000,000
SEK
|
0
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
36,000,000
SEK
|
8,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — | — |
27,000,000
SEK
|
15,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
4 575
SEK
|
3 046
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
–
SEK
|
6,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
36,000,000
SEK
|
1,000,000
SEK
|
–
SEK
|
27,000,000
SEK
|
4 575
SEK
|
4 511
SEK
|
4 575
SEK
|
3 051
SEK
|
8,000,000
SEK
|
6,000,000
SEK
|
0
SEK
|
15,000,000
SEK
|
3 046
SEK
|
3 023
SEK
|
2 865
SEK
|
10,000,000
SEK
|
141,000,000
SEK
|
0
SEK
|
17,000,000
SEK
|
2 855
SEK
|
2 697
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — |
388,000,000
SEK
|
352,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial liabilities | — | — | — | — | — | — |
0
SEK
|
–
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — |
2 674
SEK
|
2 827
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current tax liabilities, current | — | — | — | — | — | — |
15,000,000
SEK
|
26,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — |
1 136
SEK
|
600,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
8 384
SEK
|
6 477
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |