Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 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 |
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 |
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 |
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 | — | — |
40 898
SEK
|
— |
39 635
SEK
|
— |
1 155
SEK
|
— |
55,000,000
SEK
|
133,000,000
SEK
|
80,000,000
SEK
|
37 241
SEK
|
— | — | — | — |
1 375
SEK
|
55,000,000
SEK
|
35 799
SEK
|
121,000,000
SEK
|
133,000,000
SEK
|
164,000,000
SEK
|
31 227
SEK
|
357,000,000
SEK
|
31 686
SEK
|
133,000,000
SEK
|
133,000,000
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||
| Profit (loss) |
5 901
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
4 168
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
167,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
3 615
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
6 068
SEK
|
— | — |
220,000,000
SEK
|
— |
7,000,000
SEK
|
— |
6 281
SEK
|
— | — | — | — |
1 018
SEK
|
7 783
SEK
|
6 761
SEK
|
4,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
2 366
SEK
|
— | — | — | — | — | — |
2 366
SEK
|
— | — | — | — | — |
2 110
SEK
|
2 110
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
-
SEK
|
107,000,000
SEK
|
— | — | — | — | — |
107,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
7,000,000
SEK
|
— | — | — | — |
7,000,000
SEK
|
— | — | — | — | — | — | — |
82,000,000
SEK
|
— |
82,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |