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 |
As at 2023-12-31 |
As at 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 |
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 |
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 | — |
12 480
SEK
|
— |
10 068
SEK
|
— |
2 400
SEK
|
12,000,000
SEK
|
12 480
SEK
|
13 698
SEK
|
— | — |
2 400
SEK
|
11 286
SEK
|
12,000,000
SEK
|
13 698
SEK
|
— |
8 524
SEK
|
11 068
SEK
|
10 936
SEK
|
132,000,000
SEK
|
2 400
SEK
|
8 656
SEK
|
11 068
SEK
|
12,000,000
SEK
|
10 936
SEK
|
2 400
SEK
|
12,000,000
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||
| Profit (loss) |
943,000,000
SEK
|
— |
943,000,000
SEK
|
— |
943,000,000
SEK
|
— | — | — | — |
3 026
SEK
|
3 026
SEK
|
— | — | — | — |
3 026
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
275,000,000
SEK
|
— |
275,000,000
SEK
|
— |
275,000,000
SEK
|
— | — | — | — |
264,000,000
SEK
|
264,000,000
SEK
|
— | — | — | — |
264,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |