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 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 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 |
14,000,000
SEK
|
— | — | — | — | — | — |
8,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
68,000,000
SEK
|
— | — | — | — | — | — |
52,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
66,000,000
SEK
|
— | — | — | — | — | — |
66,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
236,000,000
SEK
|
— | — | — | — | — | — |
402,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
438,000,000
SEK
|
— | — | — | — |
| Assets |
1 149
SEK
|
— | — | — | — | — | — |
1 224
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||||||
| Issued capital |
1,000,000
SEK
|
— | — | — | — | — | — |
1,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
1 400
SEK
|
— | — | — | — | — | — |
1 205
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
562,000,000
SEK
|
— | — | — | — | — | — |
752,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
2,000,000
SEK
|
— | — | — | — | — | — |
2,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
564,000,000
SEK
|
1 400
SEK
|
2,000,000
SEK
|
1,000,000
SEK
|
35,000,000
SEK
|
562,000,000
SEK
|
1 996
SEK
|
754,000,000
SEK
|
1 996
SEK
|
7,000,000
SEK
|
1,000,000
SEK
|
7,000,000
SEK
|
752,000,000
SEK
|
7,000,000
SEK
|
2,000,000
SEK
|
2,000,000
SEK
|
1 205
SEK
|
1 205
SEK
|
1,000,000
SEK
|
40,000,000
SEK
|
752,000,000
SEK
|
754,000,000
SEK
|
1 996
SEK
|
40,000,000
SEK
|
1 116
SEK
|
1 976
SEK
|
842,000,000
SEK
|
840,000,000
SEK
|
2,000,000
SEK
|
21,000,000
SEK
|
1,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||||||||||||
| Deferred tax liabilities |
2,000,000
SEK
|
— | — | — | — | — | — |
-
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
585,000,000
SEK
|
— | — | — | — | — | — |
470,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
1 149
SEK
|
— | — | — | — | — | — |
1 224
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |