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 2022-04-28 |
As at 2022-04-28 |
As at 2022-04-28 |
As at 2022-04-28 |
As at 2022-04-28 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Right-of-use assets | — | — | — | — |
8 7, 7
SEK
|
626,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — |
1 012,1
SEK
|
891 ,9
SEK
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — |
106 , 1
SEK
|
278, 9
SEK
|
— | — | — | — | — | — | — |
838 ,4
SEK
|
— |
| Assets | — | — | — | — |
1 572,2
SEK
|
1 562,2
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — | — | — | — |
35,000,000
SEK
|
33,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — |
7, 8
SEK
|
10, 8
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity |
35,000,000
SEK
|
22,000,000
SEK
|
7, 2
SEK
|
1 077,6
SEK
|
1 071,6
SEK
|
1 036,6
SEK
|
10, 8
SEK
|
33,000,000
SEK
|
16,000,000
SEK
|
1 042,5
SEK
|
26,000,000
SEK
|
-
SEK
|
7 9 7, 9
SEK
|
7 95, 5
SEK
|
50,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||
| Deferred tax liabilities | — | — | — | — |
28, 9
SEK
|
328,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — |
242, 7
SEK
|
2,588,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — |
1 572,2
SEK
|
1 562,2
SEK
|
— | — | — | — | — | — | — | — | — |