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 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 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 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Investments accounted for using equity method | — |
106,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
188,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Deferred tax assets | — |
1 469
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1 374
SEK
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — |
10 792
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
15 053
SEK
|
— | — | — |
8 540
SEK
|
— | — | — | — |
| Assets | — |
48 583
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
43 886
SEK
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — |
500,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
500,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Retained earnings | — |
25 137
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
24 220
SEK
|
— | — | — | — | — | — | — | — |
| Share premium | — |
106,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
80,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Other reserves | — |
14,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1 107
SEK
|
— | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — |
25 729
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
23 693
SEK
|
— | — | — | — | — | — | — | — |
| Non-controlling interests | — |
56,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
46,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Equity |
25 137
SEK
|
25 785
SEK
|
0
SEK
|
25 729
SEK
|
56,000,000
SEK
|
106,000,000
SEK
|
14,000,000
SEK
|
500,000,000
SEK
|
24 220
SEK
|
46,000,000
SEK
|
0
SEK
|
23 693
SEK
|
500,000,000
SEK
|
1 107
SEK
|
80,000,000
SEK
|
23 739
SEK
|
22 761
SEK
|
52,000,000
SEK
|
730,000,000
SEK
|
22 813
SEK
|
58,000,000
SEK
|
21 473
SEK
|
0
SEK
|
500,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Deferred tax liabilities | — |
785,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
606,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Equity and liabilities | — |
48 583
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
43 886
SEK
|
— | — | — | — | — | — | — | — |