Statement Of Financial Position [Abstract]
| Concept |
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 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — |
510,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
5 19
SEK
|
— | — | — | — | — | — | — |
| Right-of-use assets | — | — |
2 508
SEK
|
— | — | — | — | — | — | — | — | — | — |
2 705
SEK
|
— | — | — | — | — | — | — |
| Goodwill | — | — |
8 143
SEK
|
— | — | — | — | — | — | — | — | — | — |
7 593
SEK
|
— | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — |
284,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
340,000,000
SEK
|
— | — | — | — | — | — | — |
| Deferred tax assets | — | — |
228,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
279,000,000
SEK
|
— | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
896,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
2 088
SEK
|
— | — | — |
660,000,000
SEK
|
— | — | — |
| Assets | — | — |
19 657
SEK
|
— | — | — | — | — | — | — | — | — | — |
19 948
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — |
121,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
121,000,000
SEK
|
— | — | — | — | — | — | — |
| Retained earnings | — | — |
5 311
SEK
|
— | — | — | — | — | — | — | — | — | — |
4 445
SEK
|
— | — | — | — | — | — | — |
| Share premium | — | — |
3 088
SEK
|
— | — | — | — | — | — | — | — | — | — |
3 088
SEK
|
— | — | — | — | — | — | — |
| Other reserves | — | — |
75,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
105,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — |
8 594
SEK
|
— | — | — | — | — | — | — | — | — | — |
7 548
SEK
|
— | — | — | — | — | — | — |
| Non-controlling interests | — | — |
10,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
10,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity |
5 311
SEK
|
75,000,000
SEK
|
8 604
SEK
|
8 594
SEK
|
3 088
SEK
|
10,000,000
SEK
|
121,000,000
SEK
|
4 445
SEK
|
10,000,000
SEK
|
7 548
SEK
|
121,000,000
SEK
|
105,000,000
SEK
|
3 088
SEK
|
7 557
SEK
|
7 154
SEK
|
10,000,000
SEK
|
209,000,000
SEK
|
7 164
SEK
|
3 088
SEK
|
3 736
SEK
|
121,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — |
54 4
SEK
|
— | — | — | — | — | — | — | — | — | — |
484,000,000
SEK
|
— | — | — | — | — | — | — |
| Liabilities | — | — |
11 053
SEK
|
— | — | — | — | — | — | — | — | — | — |
12 391
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities | — | — |
19 657
SEK
|
— | — | — | — | — | — | — | — | — | — |
19 948
SEK
|
— | — | — | — | — | — | — |