Statement Of Financial Position [Abstract]
| Concept |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||
| Property, plant and equipment |
114,000,000
SEK
|
— | — | — | — | — | — | — |
114,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
35,000,000
SEK
|
— | — | — | — | — | — | — |
34,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill |
428,000,000
SEK
|
— | — | — | — | — | — | — |
428,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill |
34,000,000
SEK
|
— | — | — | — | — | — | — |
35,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements |
1,000,000
SEK
|
— | — | — | — | — | — | — |
17,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
117,000,000
SEK
|
— | — | — | — | — | — | — |
54,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
534,000,000
SEK
|
— | — | — | — | — | — | — |
897,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
8 97
SEK
|
860,000,000
SEK
|
| Assets |
4 467
SEK
|
— | — | — | — | — | — | — |
4 101
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||
| Issued capital |
4,000,000
SEK
|
— | — | — | — | — | — | — |
4,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium |
946,000,000
SEK
|
— | — | — | — | — | — | — |
946,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
1 593
SEK
|
— | — | — | — | — | — | — |
1 747
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
4,000,000
SEK
|
— | — | — | — | — | — | — |
4,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
1 597
SEK
|
4,000,000
SEK
|
946,000,000
SEK
|
646,000,000
SEK
|
4,000,000
SEK
|
3,000,000
SEK
|
1 593
SEK
|
79 8
SEK
|
1 751
SEK
|
1 747
SEK
|
946,000,000
SEK
|
4,000,000
SEK
|
1,000,000
SEK
|
4,000,000
SEK
|
642,000,000
SEK
|
3,000,000
SEK
|
1 590
SEK
|
4,000,000
SEK
|
2,000,000
SEK
|
946,000,000
SEK
|
1 593
SEK
|
— |
| Liabilities [abstract] | ||||||||||||||||||||||
| Deferred tax liabilities |
20,000,000
SEK
|
— | — | — | — | — | — | — |
18,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
4 467
SEK
|
— | — | — | — | — | — | — |
4 101
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |