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] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
950,000,000
SEK
|
893,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — |
4 847
SEK
|
4 385
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
490,000,000
SEK
|
391,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
1 138
SEK
|
1 107
SEK
|
— | — | — | — | — | — |
904,000,000
SEK
|
— | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
17 067
SEK
|
15 630
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
354,000,000
SEK
|
354,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
1 792
SEK
|
1 741
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — | — |
657,000,000
SEK
|
466,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
4 078
SEK
|
3 836
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
25,000,000
SEK
|
28,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
1 792
SEK
|
354,000,000
SEK
|
25,000,000
SEK
|
4 078
SEK
|
657,000,000
SEK
|
1 276
SEK
|
4 102
SEK
|
3 864
SEK
|
1 741
SEK
|
466,000,000
SEK
|
28,000,000
SEK
|
354,000,000
SEK
|
3 836
SEK
|
1 276
SEK
|
3 870
SEK
|
532,000,000
SEK
|
36,000,000
SEK
|
1 673
SEK
|
354,000,000
SEK
|
3 835
SEK
|
1 276
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — |
284,000,000
SEK
|
297,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
17 067
SEK
|
15 630
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |