Statement Of Changes In Equity [Abstract]
| Concept |
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 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||
| Statement of changes in equity [line items] | ||||||||
| Increase (decrease) through exercise of options, equity |
37,000,000
SEK
|
37,000,000
SEK
|
— |
37,000,000
SEK
|
— |
122,000,000
SEK
|
122,000,000
SEK
|
122,000,000
SEK
|
| Increase (decrease) through exercise of warrants, equity |
30,000,000
SEK
|
30,000,000
SEK
|
— | — | — |
22,000,000
SEK
|
22,000,000
SEK
|
— |
| Purchase of treasury shares |
232,000,000
SEK
|
232,000,000
SEK
|
— |
232,000,000
SEK
|
— |
284,000,000
SEK
|
284,000,000
SEK
|
284,000,000
SEK
|
| Sale or issue of treasury shares |
116,000,000
SEK
|
116,000,000
SEK
|
1,000,000
SEK
|
115,000,000
SEK
|
26,000,000
SEK
|
348,000,000
SEK
|
348,000,000
SEK
|
322,000,000
SEK
|