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 |
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 |
2021-01-01 to 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 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 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 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||
| Equity |
86 026
SEK
|
— | — | — | — |
12 133
SEK
|
12,000,000
SEK
|
63 835
SEK
|
371,000,000
SEK
|
9 675
SEK
|
— |
54 299
SEK
|
5 237
SEK
|
9 675
SEK
|
— |
69 592
SEK
|
9,000,000
SEK
|
371,000,000
SEK
|
— | — |
47 030
SEK
|
9,000,000
SEK
|
9 675
SEK
|
371,000,000
SEK
|
1 794
SEK
|
58 879
SEK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||
| Profit (loss) | — | — |
13 296
SEK
|
13 291
SEK
|
5,000,000
SEK
|
— | — | — | — | — |
1,000,000
SEK
|
— | — | — | — | — | — | — |
10 901
SEK
|
10 900
SEK
|
— | — | — | — | — | — |
| Other comprehensive income | — |
6 896
SEK
|
7 809
SEK
|
914,000,000
SEK
|
1,000,000
SEK
|
— | — | — | — | — |
1,000,000
SEK
|
— | — | — |
3 444
SEK
|
— | — | — |
4 150
SEK
|
705,000,000
SEK
|
— | — | — | — | — | — |
| Comprehensive income | — |
6 896
SEK
|
21 105
SEK
|
14 205
SEK
|
4,000,000
SEK
|
— | — | — | — | — |
1,000,000
SEK
|
— | — | — |
3 444
SEK
|
— | — | — |
15 050
SEK
|
11 605
SEK
|
— | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — |
4 666
SEK
|
4 665
SEK
|
1,000,000
SEK
|
— | — | — | — | — |
2,000,000
SEK
|
— | — | — | — | — | — | — |
4 333
SEK
|
4 332
SEK
|
— | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — |
–
SEK
|
–
SEK
|
–
SEK
|
— | — | — | — | — |
–
SEK
|
— | — | — | — | — | — | — |
–
SEK
|
–
SEK
|
— | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — |
4,000,000
SEK
|
4,000,000
SEK
|
–
SEK
|
— | — | — | — | — |
–
SEK
|
— | — | — | — | — | — | — |
5,000,000
SEK
|
5,000,000
SEK
|
— | — | — | — | — | — |