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 |
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 comprehensive income [abstract] | ||||||||||||||
| Profit (loss) |
99,000,000
SEK
|
— | — |
4 80,9
SEK
|
— |
4,908,000,000
SEK
|
4,809,000,000
SEK
|
415 ,1
SEK
|
— |
4,203,000,000
SEK
|
— |
51,000,000
SEK
|
4,151,000,000
SEK
|
— |
| Other comprehensive income [abstract] | ||||||||||||||
| Other comprehensive income |
7,000,000
SEK
|
— |
176,000,000
SEK
|
176,000,000
SEK
|
— |
183,000,000
SEK
|
— | — | — |
110,000,000
SEK
|
95,000,000
SEK
|
15,000,000
SEK
|
95,000,000
SEK
|
— |
| Comprehensive income |
106,000,000
SEK
|
-
SEK
|
176,000,000
SEK
|
4,985,000,000
SEK
|
-
SEK
|
5,091,000,000
SEK
|
4,809,000,000
SEK
|
4,151,000,000
SEK
|
-
SEK
|
4,093,000,000
SEK
|
95,000,000
SEK
|
3 ,6
SEK
|
40 5,7
SEK
|
-
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — |
4,985,000,000
SEK
|
— | — | — |
4,057,000,000
SEK
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — |
106,000,000
SEK
|
— | — | — |
36,000,000
SEK
|
— | — | — | — |