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 |
2022-01-01 to 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 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||
| Equity |
126 180
SEK
|
— | — |
137 996
SEK
|
13 967
SEK
|
— |
1 088
SEK
|
1 063
SEK
|
— | — |
26 594
SEK
|
1 063
SEK
|
143 079
SEK
|
— | — |
114 334
SEK
|
— |
1 088
SEK
|
— | — |
1 063
SEK
|
1 088
SEK
|
8 440
SEK
|
110 385
SEK
|
120 976
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||
| Profit (loss) | — |
–
SEK
|
13 967
SEK
|
— | — |
–
SEK
|
— | — |
13 967
SEK
|
–
SEK
|
— | — | — |
26 594
SEK
|
–
SEK
|
— |
–
SEK
|
— |
–
SEK
|
26 594
SEK
|
— | — | — | — | — |
| Comprehensive income | — |
–
SEK
|
13 989
SEK
|
— | — |
22,000,000
SEK
|
— | — |
13 967
SEK
|
–
SEK
|
— | — | — |
26 594
SEK
|
18,000,000
SEK
|
— |
–
SEK
|
— |
–
SEK
|
26 612
SEK
|
— | — | — | — | — |
| Dividends recognised as distributions to owners | — |
–
SEK
|
2 915
SEK
|
— | — |
2 915
SEK
|
— | — |
–
SEK
|
–
SEK
|
— | — | — |
–
SEK
|
3 590
SEK
|
— |
–
SEK
|
— |
–
SEK
|
3 590
SEK
|
— | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
SEK
|
922,000,000
SEK
|
— |
–
SEK
|
— |
–
SEK
|
922,000,000
SEK
|
— | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
–
SEK
|
5,000,000
SEK
|
— | — |
5,000,000
SEK
|
— | — |
–
SEK
|
–
SEK
|
— | — | — |
–
SEK
|
3,000,000
SEK
|
— |
–
SEK
|
— |
–
SEK
|
3,000,000
SEK
|
— | — | — | — | — |