Statement Of Comprehensive Income [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||
| Profit (loss) | — |
3,692,000,000
SEK
|
3,692,000,000
SEK
|
491,000,000
SEK
|
491,000,000
SEK
|
— |
| Other comprehensive income [abstract] | ||||||
| Other comprehensive income |
211,000,000
SEK
|
211,000,000
SEK
|
— | — |
369,000,000
SEK
|
369,000,000
SEK
|
| Comprehensive income |
211,000,000
SEK
|
3,903,000,000
SEK
|
3,692,000,000
SEK
|
491,000,000
SEK
|
122,000,000
SEK
|
369,000,000
SEK
|
| Comprehensive income attributable to [abstract] | ||||||
| Comprehensive income, attributable to owners of parent | — |
3,903,000,000
SEK
|
— | — |
122,000,000
SEK
|
— |