Statement Of Changes In Equity [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
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 |
2023-01-01 to 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 2023-12-31 |
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 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||
| Equity | — | — | — |
506,000,000
SEK
|
3 329,4
SEK
|
1 909,8
SEK
|
1,252,000,000
SEK
|
0
SEK
|
— | — |
5 415,0
SEK
|
— |
5 415,0
SEK
|
— |
5 020,2
SEK
|
— |
3 110,8
SEK
|
1,266,000,000
SEK
|
— | — |
0
SEK
|
1 667,7
SEK
|
1,151,000,000
SEK
|
5 020,2
SEK
|
5 372,9
SEK
|
5,951,000,000
SEK
|
0
SEK
|
1 315,1
SEK
|
3 364,3
SEK
|
984,000,000
SEK
|
5 372,9
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||
| Profit (loss) |
2,248,000,000
SEK
|
— | — | — | — | — | — | — |
2,248,000,000
SEK
|
0
SEK
|
— |
2,248,000,000
SEK
|
— |
2,061,000,000
SEK
|
— |
2,061,000,000
SEK
|
— | — |
0
SEK
|
2,061,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
0
SEK
|
— | — | — | — | — | — | — | — | — | — |
0
SEK
|
— |
0
SEK
|
— |
0
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
2,248,000,000
SEK
|
— | — | — | — | — | — | — |
2,248,000,000
SEK
|
0
SEK
|
— |
2,248,000,000
SEK
|
— |
2,061,000,000
SEK
|
— |
2,061,000,000
SEK
|
— | — |
0
SEK
|
2,061,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Issue of equity |
2,523,000,000
SEK
|
101,000,000
SEK
|
2,421,000,000
SEK
|
— | — | — | — | — | — | — | — |
2,523,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Decrease through other distributions to owners, equity |
81,000,000
SEK
|
— | — | — | — | — | — | — |
81,000,000
SEK
|
— | — |
81,000,000
SEK
|
— |
585,000,000
SEK
|
— |
585,000,000
SEK
|
— | — | — |
585,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |