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 |
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 |
2022-01-01 to 2022-12-31 |
As at 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 |
As at 2021-12-31 |
2021-01-01 to 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 |
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 |
1 336
SEK
|
— | — | — |
35,000,000
SEK
|
140,000,000
SEK
|
80,000,000
SEK
|
4,000,000
SEK
|
1 301
SEK
|
1 077
SEK
|
— | — | — |
44,000,000
SEK
|
907,000,000
SEK
|
— |
896,000,000
SEK
|
— |
896,000,000
SEK
|
— |
29,000,000
SEK
|
4,000,000
SEK
|
— | — | — |
143,000,000
SEK
|
623,000,000
SEK
|
468,000,000
SEK
|
3,000,000
SEK
|
16,000,000
SEK
|
468,000,000
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||
| Profit (loss) | — |
184,000,000
SEK
|
184,000,000
SEK
|
0
SEK
|
— | — | — | — | — | — |
184,000,000
SEK
|
— | — | — | — |
92,000,000
SEK
|
— | — | — | — | — | — | — |
92,000,000
SEK
|
92,000,000
SEK
|
— | — | — | — | — | — |
| Other comprehensive income | — |
51,000,000
SEK
|
— |
0
SEK
|
— | — | — | — | — | — |
51,000,000
SEK
|
51,000,000
SEK
|
— | — | — |
44,000,000
SEK
|
— |
44,000,000
SEK
|
— | — | — | — | — |
44,000,000
SEK
|
— | — | — | — | — | — | — |
| Comprehensive income | — |
235,000,000
SEK
|
184,000,000
SEK
|
0
SEK
|
— | — | — | — | — | — | — |
51,000,000
SEK
|
— | — | — |
136,000,000
SEK
|
— |
44,000,000
SEK
|
— | — | — | — | — |
136,000,000
SEK
|
92,000,000
SEK
|
— | — | — | — | — | — |
| Issue of equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
146,000,000
SEK
|
— | — | — |
0
SEK
|
— | — |
146,000,000
SEK
|
146,000,000
SEK
|
— | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
3,000,000
SEK
|
— | — | — | — | — | — | — | — |
3,000,000
SEK
|
— |
3,000,000
SEK
|
— | — |
1,000,000
SEK
|
— | — | — | — | — | — |
1,000,000
SEK
|
1,000,000
SEK
|
— | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
37,000,000
SEK
|
— | — | — | — | — | — | — |
37,000,000
SEK
|
37,000,000
SEK
|
— | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,000,000
SEK
|
— | — | — | — | — | — |
3,000,000
SEK
|
3,000,000
SEK
|
— | — | — | — | — | — | — |