Statement Of Changes In Equity [Abstract]
| Concept |
As at 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 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 |
2021-01-01 to 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||
| Equity |
3 0 07, 0
SEK
|
— | — |
92 874 199
SEK
|
1 037, 8
SEK
|
227 ,0
SEK
|
20 628 625
SEK
|
1 742 , 2
SEK
|
7 70,7
SEK
|
91 6,1
SEK
|
1 8 4 7, 8
SEK
|
66 446 380
SEK
|
13 951 313
SEK
|
1,608,000,000
SEK
|
— |
318 ,6
SEK
|
503 , 2
SEK
|
1,208,000,000
SEK
|
60 405 800
SEK
|
942 ,6
SEK
|
| Changes in equity [abstract] | ||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||
| Profit (loss) | — |
310 ,9
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
4,689,000,000
SEK
|
— | — | — | — | — |
| Comprehensive income | — |
310 ,9
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
4,689,000,000
SEK
|
— | — | — | — | — |
| Dividends recognised as distributions to owners | — |
43 ,8
SEK
|
43 ,8
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |