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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||
| Property, plant and equipment | — | — | — |
12,653,000,000
SEK
|
— | — | — | — | — |
11,460,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
2,097,000,000
SEK
|
— | — | — | — | — |
1,863,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — |
698,000,000
SEK
|
— | — | — | — | — |
412,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
167,859,000,000
SEK
|
— | — | — | — | — |
147,357,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||
| Current tax assets, current | — | — | — |
1,385,000,000
SEK
|
— | — | — | — | — |
2,022,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
4,504,000,000
SEK
|
— | — | — | — | — |
1,466,000,000
SEK
|
— | — |
3,417,000,000
SEK
|
— | — | — | — | — |
| Current assets | — | — | — |
55,747,000,000
SEK
|
— | — | — | — | — |
48,994,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Assets | — | — | — |
223,605,000,000
SEK
|
— | — | — | — | — |
196,351,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital | — | — | — |
371,000,000
SEK
|
— | — | — | — | — |
371,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
81,819,000,000
SEK
|
— | — | — | — | — |
72,128,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Other reserves | — | — | — |
15,206,000,000
SEK
|
— | — | — | — | — |
9,455,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — |
107,071,000,000
SEK
|
— | — | — | — | — |
91,629,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — |
10,000,000
SEK
|
— | — | — | — | — |
16,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Equity |
81,819,000,000
SEK
|
9,675,000,000
SEK
|
15,206,000,000
SEK
|
107,080,000,000
SEK
|
371,000,000
SEK
|
10,000,000
SEK
|
371,000,000
SEK
|
9,675,000,000
SEK
|
72,128,000,000
SEK
|
91,644,000,000
SEK
|
9,455,000,000
SEK
|
16,000,000
SEK
|
86,026,000,000
SEK
|
371,000,000
SEK
|
12,000,000
SEK
|
63,835,000,000
SEK
|
12,133,000,000
SEK
|
9,675,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||
| Other non-current provisions | — | — | — |
527,000,000
SEK
|
— | — | — | — | — |
891,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — |
3,322,000,000
SEK
|
— | — | — | — | — |
2,991,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
66,056,000,000
SEK
|
— | — | — | — | — |
60,131,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||
| Current provisions | — | — | — |
431,000,000
SEK
|
— | — | — | — | — |
736,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
50,469,000,000
SEK
|
— | — | — | — | — |
44,576,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
223,605,000,000
SEK
|
— | — | — | — | — |
196,351,000,000
SEK
|
— | — | — | — | — | — | — | — |