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 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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||
| Property, plant and equipment |
10,000,000
SEK
|
— | — | — | — | — | — |
21,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
138,000,000
SEK
|
— | — | — | — | — | — |
153,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill |
2,311,000,000
SEK
|
— | — | — | — | — | — |
2,309,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
138,000,000
SEK
|
— | — | — | — | — | — |
142,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
1,943,000,000
SEK
|
— | — | — | — | — | — |
1,544,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
1,791,000,000
SEK
|
— | — | — |
| Assets |
8,691,000,000
SEK
|
— | — | — | — | — | — |
9,038,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||
| Issued capital |
245,000,000
SEK
|
— | — | — | — | — | — |
245,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
1,437,000,000
SEK
|
— | — | — | — | — | — |
1,113,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
352,000,000
SEK
|
— | — | — | — | — | — |
337,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
5,089,000,000
SEK
|
1,437,000,000
SEK
|
352,000,000
SEK
|
245,000,000
SEK
|
363,000,000
SEK
|
11,000,000
SEK
|
3,055,000,000
SEK
|
4,750,000,000
SEK
|
337,000,000
SEK
|
1,113,000,000
SEK
|
366,000,000
SEK
|
245,000,000
SEK
|
366,000,000
SEK
|
29,000,000
SEK
|
3,055,000,000
SEK
|
704,000,000
SEK
|
225,000,000
SEK
|
3,055,000,000
SEK
|
4,229,000,000
SEK
|
231,000,000
SEK
|
6,000,000
SEK
|
245,000,000
SEK
|
| Equity and liabilities |
8,691,000,000
SEK
|
— | — | — | — | — | — |
9,038,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |