Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 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 |
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 |
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 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity | — |
2 721
SEK
|
— | — |
373,000,000
SEK
|
— |
36,000,000
SEK
|
— |
0
SEK
|
— |
6,000,000
SEK
|
2 721
SEK
|
— |
2 307
SEK
|
2 503
SEK
|
— | — | — | — | — |
39,000,000
SEK
|
0
SEK
|
229,000,000
SEK
|
6,000,000
SEK
|
2 503
SEK
|
2 230
SEK
|
— | — |
35,000,000
SEK
|
4,000,000
SEK
|
2 202
SEK
|
2 298
SEK
|
2 177
SEK
|
121,000,000
SEK
|
6,000,000
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) |
233,000,000
SEK
|
— |
233,000,000
SEK
|
-
SEK
|
— |
-
SEK
|
— |
233,000,000
SEK
|
— |
-
SEK
|
— | — |
-
SEK
|
— | — |
-
SEK
|
-
SEK
|
187,000,000
SEK
|
187,000,000
SEK
|
-
SEK
|
— | — | — | — | — | — |
187,000,000
SEK
|
-
SEK
|
— | — | — | — | — | — | — |
| Other comprehensive income |
3,000,000
SEK
|
— |
3,000,000
SEK
|
3,000,000
SEK
|
— |
-
SEK
|
— |
-
SEK
|
— |
-
SEK
|
— | — |
-
SEK
|
— | — |
-
SEK
|
36,000,000
SEK
|
36,000,000
SEK
|
-
SEK
|
-
SEK
|
— | — | — | — | — | — |
36,000,000
SEK
|
-
SEK
|
— | — | — | — | — | — | — |
| Comprehensive income |
230,000,000
SEK
|
— |
230,000,000
SEK
|
3,000,000
SEK
|
— |
0
SEK
|
— |
233,000,000
SEK
|
— |
0
SEK
|
— | — |
0
SEK
|
— | — |
0
SEK
|
36,000,000
SEK
|
222,000,000
SEK
|
187,000,000
SEK
|
0
SEK
|
— | — | — | — | — | — |
222,000,000
SEK
|
0
SEK
|
— | — | — | — | — | — | — |
| Issue of equity |
-
SEK
|
— |
-
SEK
|
-
SEK
|
— |
-
SEK
|
— |
0
SEK
|
— |
0
SEK
|
— | — |
-
SEK
|
— | — |
0
SEK
|
-
SEK
|
-
SEK
|
0
SEK
|
-
SEK
|
— | — | — | — | — | — |
-
SEK
|
-
SEK
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
77,000,000
SEK
|
— |
77,000,000
SEK
|
-
SEK
|
— |
-
SEK
|
— |
-
SEK
|
— |
-
SEK
|
— | — |
77,000,000
SEK
|
— | — |
-
SEK
|
-
SEK
|
28,000,000
SEK
|
-
SEK
|
-
SEK
|
— | — | — | — | — | — |
28,000,000
SEK
|
28,000,000
SEK
|
— | — | — | — | — | — | — |