Statement Of Financial Position [Abstract]
| Concept |
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 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 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 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 |
As at 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||
| Investments accounted for using equity method | — | — | — | — | — | — | — |
8,998,000,000
SEK
|
— |
14,142,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — | — |
10,982,000,000
SEK
|
— |
10,135,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — | — |
56,373,000,000
SEK
|
— |
47,861,000,000
SEK
|
— | — | — | — | — | — | — | — |
63,743,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — | — |
388,235,000,000
SEK
|
— |
356,362,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||
| Equity attributable to owners of parent | — | — | — | — | — | — | — |
137,461,000,000
SEK
|
— |
126,371,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — | — |
4,738,000,000
SEK
|
— |
4,114,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
95,045,000,000
SEK
|
31,654,000,000
SEK
|
61,000,000
SEK
|
4,738,000,000
SEK
|
4,507,000,000
SEK
|
137,461,000,000
SEK
|
2,258,000,000
SEK
|
142,199,000,000
SEK
|
8,452,000,000
SEK
|
130,485,000,000
SEK
|
80,096,000,000
SEK
|
4,114,000,000
SEK
|
31,654,000,000
SEK
|
61,000,000
SEK
|
4,092,000,000
SEK
|
2,016,000,000
SEK
|
126,371,000,000
SEK
|
8,452,000,000
SEK
|
117,278,000,000
SEK
|
3,331,000,000
SEK
|
31,654,000,000
SEK
|
68,353,000,000
SEK
|
61,000,000
SEK
|
4,999,000,000
SEK
|
428,000,000
SEK
|
113,947,000,000
SEK
|
8,452,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — | — |
11,080,000,000
SEK
|
— |
8,293,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — | — |
388,235,000,000
SEK
|
— |
356,362,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |