Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||
| Equity | — |
3 657
SEK
|
1 378
SEK
|
— | — | — |
112,000,000
SEK
|
124,000,000
SEK
|
— |
2 291
SEK
|
1 637
SEK
|
— | — | — |
1 229
SEK
|
93,000,000
SEK
|
34,000,000
SEK
|
281,000,000
SEK
|
— | — |
1 063
SEK
|
266,000,000
SEK
|
1 371
SEK
|
50,000,000
SEK
|
92,000,000
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||
| Profit (loss) |
246,000,000
SEK
|
— | — |
2 46
SEK
|
–
SEK
|
–
SEK
|
— | — |
–
SEK
|
— | — |
–
SEK
|
268,000,000
SEK
|
268,000,000
SEK
|
— | — | — | — |
–
SEK
|
–
SEK
|
— | — | — | — | — |
| Other comprehensive income |
155,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
84,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
91,000,000
SEK
|
— | — |
2 46
SEK
|
155,000,000
SEK
|
–
SEK
|
— | — |
–
SEK
|
— | — |
–
SEK
|
352,000,000
SEK
|
268,000,000
SEK
|
— | — | — | — |
84,000,000
SEK
|
–
SEK
|
— | — | — | — | — |
| Issue of equity |
2 026
SEK
|
— | — |
–
SEK
|
–
SEK
|
19,000,000
SEK
|
— | — |
2 007
SEK
|
— | — |
1,000,000
SEK
|
1,000,000
SEK
|
–
SEK
|
— | — | — | — |
–
SEK
|
–
SEK
|
— | — | — | — | — |
| Increase (decrease) through other changes, equity |
2,000,000
SEK
|
— | — |
5,000,000
SEK
|
3,000,000
SEK
|
–
SEK
|
— | — |
–
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
3,000,000
SEK
|
— | — |
–
SEK
|
–
SEK
|
–
SEK
|
— | — |
3,000,000
SEK
|
— | — |
–
SEK
|
15,000,000
SEK
|
–
SEK
|
— | — | — | — |
–
SEK
|
15,000,000
SEK
|
— | — | — | — | — |