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 | — | — | — |
436,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
448,000,000
SEK
|
— | — | — | — | — | — | — |
| Right-of-use assets | — | — | — |
1 651
SEK
|
— | — | — | — | — | — | — | — | — |
1 606
SEK
|
— | — | — | — | — | — | — |
| Goodwill | — | — | — |
3 761
SEK
|
— | — | — | — | — | — | — | — | — |
3 679
SEK
|
— | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
596,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
744,000,000
SEK
|
— | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — |
26,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
31,000,000
SEK
|
— | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
892,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
420,000,000
SEK
|
— | — | — | — |
355,000,000
SEK
|
— | — |
| Assets | — | — | — |
13 229
SEK
|
— | — | — | — | — | — | — | — | — |
12 193
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — |
141,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
141,000,000
SEK
|
— | — | — | — | — | — | — |
| Retained earnings | — | — | — |
2 356
SEK
|
— | — | — | — | — | — | — | — | — |
1 809
SEK
|
— | — | — | — | — | — | — |
| Other reserves | — | — | — |
317,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
416,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — |
5 174
SEK
|
— | — | — | — | — | — | — | — | — |
4 527
SEK
|
— | — | — | — | — | — | — |
| Non-controlling interests | — | — | — |
55,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
68,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity |
2 356
SEK
|
317,000,000
SEK
|
2 993
SEK
|
5 229
SEK
|
5 174
SEK
|
55,000,000
SEK
|
141,000,000
SEK
|
1 809
SEK
|
68,000,000
SEK
|
2 993
SEK
|
4 527
SEK
|
141,000,000
SEK
|
416,000,000
SEK
|
4 595
SEK
|
4 303
SEK
|
32,000,000
SEK
|
232,000,000
SEK
|
2 993
SEK
|
4 335
SEK
|
1 401
SEK
|
141,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Current tax liabilities | — | — | — |
115,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
107,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
13 229
SEK
|
— | — | — | — | — | — | — | — | — |
12 193
SEK
|
— | — | — | — | — | — | — |