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) | — |
1 508
SEK
|
1 508
SEK
|
1 508
SEK
|
1 259
SEK
|
1 259
SEK
|
1 259
SEK
|
— |
| Other comprehensive income [abstract] | ||||||||
| Other comprehensive income that will not be reclassified to profit or loss, net of tax | — | — |
74 8
SEK
|
— | — |
88,000,000
SEK
|
— | — |
| Other comprehensive income that will be reclassified to profit or loss, net of tax | — | — |
15 7
SEK
|
— | — |
12 1
SEK
|
— | — |
| Other comprehensive income |
15 7
SEK
|
905,000,000
SEK
|
90 5
SEK
|
74 8
SEK
|
88,000,000
SEK
|
3 2
SEK
|
3 2
SEK
|
12 1
SEK
|
| Comprehensive income |
15 7
SEK
|
2 413
SEK
|
2 413
SEK
|
2 256
SEK
|
1 347
SEK
|
1 226
SEK
|
1 226
SEK
|
12 1
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||
| Comprehensive income, attributable to owners of parent | — | — |
2 413
SEK
|
— | — |
1 226
SEK
|
— | — |