Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||
| Equity | — |
3 193,5
SEK
|
— |
1 029,7
SEK
|
— | — |
2,418,000,000
SEK
|
20 628 625
SEK
|
— |
1 922,0
SEK
|
— |
100 281 607
SEK
|
3 007,0
SEK
|
— | — | — | — | — |
92 874 199
SEK
|
1 037,7
SEK
|
227 ,0
SEK
|
20 628 625
SEK
|
1 742,2
SEK
|
— |
1,608,000,000
SEK
|
7,707,000,000
SEK
|
9,161,000,000
SEK
|
1 847,6
SEK
|
66 446 380
SEK
|
13 951 313
SEK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||
| Profit (loss) |
332,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3,109,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
–
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
–
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
332,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3,109,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
413,000,000
SEK
|
— |
–
SEK
|
— |
413,000,000
SEK
|
–
SEK
|
— | — |
–
SEK
|
— |
–
SEK
|
— | — |
–
SEK
|
438,000,000
SEK
|
438,000,000
SEK
|
–
SEK
|
–
SEK
|
— | — | — | — | — |
–
SEK
|
— | — | — | — | — | — |