Statement Of Financial Position [Abstract]
| Concept |
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 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment |
137,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
0
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
3 050
SEK
|
— | — | — | — | — | — | — | — | — |
5 228
SEK
|
— | — | — | — | — | — | — | — | — |
3 793
SEK
|
| Assets |
48 676
SEK
|
— | — | — | — | — | — | — | — | — |
44 294
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital |
149,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
149,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Retained earnings |
6 418
SEK
|
— | — | — | — | — | — | — | — | — |
5 266
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Other reserves |
3,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
1,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
7 070
SEK
|
500,000,000
SEK
|
6 418
SEK
|
149,000,000
SEK
|
2,000,000
SEK
|
6 570
SEK
|
5,000,000
SEK
|
5 266
SEK
|
5,000,000
SEK
|
500,000,000
SEK
|
5 916
SEK
|
5 416
SEK
|
4,000,000
SEK
|
149,000,000
SEK
|
4 553
SEK
|
5,000,000
SEK
|
4 703
SEK
|
149,000,000
SEK
|
4,000,000
SEK
|
500,000,000
SEK
|
5 203
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities |
217,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
162,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities |
41 606
SEK
|
— | — | — | — | — | — | — | — | — |
38 377
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
48 676
SEK
|
— | — | — | — | — | — | — | — | — |
44 294
SEK
|
— | — | — | — | — | — | — | — | — | — |