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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||
| Property, plant and equipment | — | — | — |
24,000,000
SEK
|
— | — | — | — | — | — |
10,000,000
SEK
|
— | — | — | — | — | — | — |
| Investment property | — | — | — |
3,000,000
SEK
|
— | — | — | — | — | — |
–
SEK
|
— | — | — | — | — | — | — |
| Goodwill | — | — | — |
215,000,000
SEK
|
— | — | — | — | — | — |
217,000,000
SEK
|
— | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — |
133,000,000
SEK
|
— | — | — | — | — | — |
93,000,000
SEK
|
— | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
2,000,000
SEK
|
— | — | — | — | — | — |
1,000,000
SEK
|
— | — | — | — | — | — | — |
| Non-current assets | — | — | — |
707,000,000
SEK
|
— | — | — | — | — | — |
532,000,000
SEK
|
— | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||
| Cash and cash equivalents | — | — | — |
506,000,000
SEK
|
— | — | — | — | — | — |
1 673
SEK
|
— |
2 151
SEK
|
— | — | — | — | — |
| Current assets | — | — | — |
24 456
SEK
|
— | — | — | — | — | — |
29 542
SEK
|
— | — | — | — | — | — | — |
| Assets | — | — | — |
25 163
SEK
|
— | — | — | — | — | — |
30 073
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital | — | — | — |
68,000,000
SEK
|
— | — | — | — | — | — |
68,000,000
SEK
|
— | — | — | — | — | — | — |
| Retained earnings | — | — | — |
7 194
SEK
|
— | — | — | — | — | — |
7 018
SEK
|
— | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — |
8 170
SEK
|
— | — | — | — | — | — |
7 972
SEK
|
— | — | — | — | — | — | — |
| Equity |
8 170
SEK
|
7 194
SEK
|
936,000,000
SEK
|
— |
68,000,000
SEK
|
28,000,000
SEK
|
68,000,000
SEK
|
51,000,000
SEK
|
936,000,000
SEK
|
7 018
SEK
|
— |
7 972
SEK
|
— |
68,000,000
SEK
|
59,000,000
SEK
|
6 976
SEK
|
8 039
SEK
|
936,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||
| Non-current provisions for employee benefits | — | — | — |
1 560
SEK
|
— | — | — | — | — | — |
1 546
SEK
|
— | — | — | — | — | — | — |
| Other non-current provisions | — | — | — |
302,000,000
SEK
|
— | — | — | — | — | — |
488,000,000
SEK
|
— | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
2 845
SEK
|
— | — | — | — | — | — |
3 785
SEK
|
— | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||
| Other current provisions | — | — | — |
130,000,000
SEK
|
— | — | — | — | — | — |
113,000,000
SEK
|
— | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — |
131,000,000
SEK
|
— | — | — | — | — | — |
167,000,000
SEK
|
— | — | — | — | — | — | — |
| Other current financial liabilities | — | — | — |
1 052
SEK
|
— | — | — | — | — | — |
1 241
SEK
|
— | — | — | — | — | — | — |
| Current liabilities | — | — | — |
14 148
SEK
|
— | — | — | — | — | — |
18 317
SEK
|
— | — | — | — | — | — | — |
| Liabilities | — | — | — |
16 993
SEK
|
— | — | — | — | — | — |
22 102
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
25 163
SEK
|
— | — | — | — | — | — |
30 073
SEK
|
— | — | — | — | — | — | — |