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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
13 376,7
SEK
|
12 473,8
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Investment property | — | — | — | — | — | — |
13 189,8
SEK
|
12 288,6
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
1,465,000,000
SEK
|
1,107,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — |
14 040,1
SEK
|
13 330,1
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — | — |
1,276,000,000
SEK
|
1,897,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
1,245,000,000
SEK
|
1,098,000,000
SEK
|
— | — | — | — | — | — |
900,000,000
SEK
|
— | — | — | — | — | — |
| Current assets | — | — | — | — | — | — |
2,521,000,000
SEK
|
2,995,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
14 292,2
SEK
|
13 629,6
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
1,252,000,000
SEK
|
1,151,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
3 329,4
SEK
|
3 110,8
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
5 415,0
SEK
|
5 020,2
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
0
SEK
|
0
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| 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
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — |
9,357,000,000
SEK
|
8,414,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — |
5 347,2
SEK
|
6 432,3
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current tax liabilities, current | — | — | — | — | — | — |
506,000,000
SEK
|
643,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — |
3 530,0
SEK
|
2 177,1
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
14 292,2
SEK
|
13 629,6
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |