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 |
As at 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 |
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 |
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 |
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 | — |
2 684
SEK
|
— |
504,000,000
SEK
|
-
SEK
|
— | — |
109,000,000
SEK
|
— |
2 071
SEK
|
1 864
SEK
|
— | — | — | — |
-
SEK
|
51 2
SEK
|
61,000,000
SEK
|
1 291
SEK
|
— |
194,000,000
SEK
|
1,000,000
SEK
|
808,000,000
SEK
|
1 0 49
SEK
|
48,000,000
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||
| Profit (loss) |
9,000,000
SEK
|
— |
-
SEK
|
— | — |
9,000,000
SEK
|
-
SEK
|
— |
-
SEK
|
— | — |
-
SEK
|
-
SEK
|
318,000,000
SEK
|
318,000,000
SEK
|
— | — | — | — |
-
SEK
|
— | — | — | — | — |
| Comprehensive income |
9,000,000
SEK
|
— |
-
SEK
|
— | — |
9,000,000
SEK
|
-
SEK
|
— |
-
SEK
|
— | — |
-
SEK
|
-
SEK
|
319,000,000
SEK
|
318,000,000
SEK
|
— | — | — | — |
-
SEK
|
— | — | — | — | — |
| Issue of equity |
842,000,000
SEK
|
— |
-
SEK
|
— | — |
-
SEK
|
48,000,000
SEK
|
— |
7 94
SEK
|
— | — |
13,000,000
SEK
|
-
SEK
|
508,000,000
SEK
|
-
SEK
|
— | — | — | — |
49 5
SEK
|
— | — | — | — | — |
| Increase (decrease) through other changes, equity |
2,000,000
SEK
|
— |
-
SEK
|
— | — |
-
SEK
|
-
SEK
|
— |
2,000,000
SEK
|
— | — |
-
SEK
|
-
SEK
|
0
SEK
|
-
SEK
|
— | — | — | — |
0
SEK
|
— | — | — | — | — |