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 |
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 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||
| Profit (loss) |
20,000,000
SEK
|
784,000,000
SEK
|
804,000,000
SEK
|
784,000,000
SEK
|
2,765,000,000
SEK
|
2,753,000,000
SEK
|
12,000,000
SEK
|
2,765,000,000
SEK
|
| Other comprehensive income [abstract] | ||||||||
| Other comprehensive income | — |
0
SEK
|
0
SEK
|
— | — |
0
SEK
|
— |
0
SEK
|
| Comprehensive income |
20,000,000
SEK
|
784,000,000
SEK
|
804,000,000
SEK
|
784,000,000
SEK
|
2,765,000,000
SEK
|
2,753,000,000
SEK
|
12,000,000
SEK
|
2,765,000,000
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||
| Comprehensive income, attributable to owners of parent | — | — |
784,000,000
SEK
|
— | — |
2,765,000,000
SEK
|
— | — |
| Comprehensive income, attributable to non-controlling interests | — | — |
20,000,000
SEK
|
— | — |
12,000,000
SEK
|
— | — |