Statement Of Financial Position [Abstract]
| Concept |
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 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Property, plant and equipment | — | — | — |
769,000,000
SEK
|
— |
711,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — |
503,000,000
SEK
|
— |
459,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — |
2 842
SEK
|
— |
2 857
SEK
|
— | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
444,000,000
SEK
|
— |
513,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
22,000,000
SEK
|
— |
25,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Trade and other receivables | — | — | — |
1 435
SEK
|
— |
1 548
SEK
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
218,000,000
SEK
|
— |
322,000,000
SEK
|
— | — | — | — |
293,000,000
SEK
|
— | — | — | — |
| Assets | — | — | — |
8 600
SEK
|
— |
9 436
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — | — | — |
1,000,000
SEK
|
— |
1,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
2 741
SEK
|
— |
2 345
SEK
|
— | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — |
188,000,000
SEK
|
— |
202,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity |
1,000,000
SEK
|
2 741
SEK
|
488,000,000
SEK
|
3 418
SEK
|
188,000,000
SEK
|
3 036
SEK
|
2 345
SEK
|
1,000,000
SEK
|
202,000,000
SEK
|
488,000,000
SEK
|
2 377
SEK
|
1 856
SEK
|
32,000,000
SEK
|
488,000,000
SEK
|
1,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||
| Deferred tax liabilities | — | — | — |
135,000,000
SEK
|
— |
163,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
8 600
SEK
|
— |
9 436
SEK
|
— | — | — | — | — | — | — | — | — |