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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||
| Property, plant and equipment | — | — | — |
30,000,000
SEK
|
— | — |
25,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — |
949,000,000
SEK
|
— | — |
1 243
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Investment property | — | — | — |
78 093
SEK
|
— | — |
86 348
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — |
205,000,000
SEK
|
— | — |
205,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — |
179,000,000
SEK
|
— | — |
149,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
81 521
SEK
|
— | — |
89 966
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||
| Current tax assets, current | — | — | — |
0
SEK
|
— | — |
0
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
85,000,000
SEK
|
— | — |
87,000,000
SEK
|
— | — | — | — | — |
131,000,000
SEK
|
— | — | — | — | — |
| Current assets | — | — | — |
1 699
SEK
|
— | — |
2 117
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — |
83 220
SEK
|
— | — |
92 083
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital | — | — | — |
5 097
SEK
|
— | — |
5 097
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
31 129
SEK
|
— | — |
37 400
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — |
0
SEK
|
— | — |
0
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
5 097
SEK
|
31 130
SEK
|
3 017
SEK
|
39 244
SEK
|
39 244
SEK
|
0
SEK
|
45 514
SEK
|
0
SEK
|
37 400
SEK
|
5 097
SEK
|
45 514
SEK
|
3 017
SEK
|
45 174
SEK
|
37 060
SEK
|
3 017
SEK
|
45 174
SEK
|
0
SEK
|
5 097
SEK
|
| Liabilities [abstract] | ||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||
| Non-current provisions | — | — | — |
158,000,000
SEK
|
— | — |
157,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — |
8 305
SEK
|
— | — |
10 195
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
35 465
SEK
|
— | — |
42 524
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||
| Current provisions | — | — | — |
0
SEK
|
— | — |
0
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — |
11,000,000
SEK
|
— | — |
16,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
8 511
SEK
|
— | — |
4 045
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
83 220
SEK
|
— | — |
92 083
SEK
|
— | — | — | — | — | — | — | — | — | — | — |