Statement Of Changes In Equity [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 |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||
| Increase (decrease) through transactions with owners, equity |
1,146,000,000
SEK
|
-
SEK
|
2,000,000
SEK
|
766,000,000
SEK
|
1,916,000,000
SEK
|
1,912,000,000
SEK
|
1,152,000,000
SEK
|
0
SEK
|
6,000,000
SEK
|
8,323,000,000
SEK
|
-
SEK
|
8,323,000,000
SEK
|
-
SEK
|
8,318,000,000
SEK
|
| Share issue related cost |
-
SEK
|
-
SEK
|
-
SEK
|
-
SEK
|
-
SEK
|
-
SEK
|
-
SEK
|
-
SEK
|
-
SEK
|
307,000,000
SEK
|
-
SEK
|
307,000,000
SEK
|
-
SEK
|
307,000,000
SEK
|