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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Cash and cash equivalents | — |
1 516
SEK
|
— | — | — | — |
4 033
SEK
|
— | — | — | — | — | — | — | — |
1 029
SEK
|
— | — |
| Assets | — |
47 937
SEK
|
— | — | — | — |
42 087
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital | — |
133,000,000
SEK
|
— | — | — | — |
13 3
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — |
31 227
SEK
|
— | — | — | — |
29 018
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — |
16 4
SEK
|
— | — | — | — |
8 3
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — |
357,000,000
SEK
|
— | — | — | — |
1,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — |
31 553
SEK
|
— | — | — | — |
29 067
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — |
133,000,000
SEK
|
— | — | — | — |
81,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
16 4
SEK
|
31 686
SEK
|
31 227
SEK
|
357,000,000
SEK
|
133,000,000
SEK
|
13 3
SEK
|
29 148
SEK
|
133,000,000
SEK
|
29 018
SEK
|
81,000,000
SEK
|
83,000,000
SEK
|
1,000,000
SEK
|
80,000,000
SEK
|
442,000,000
SEK
|
25 502
SEK
|
26 090
SEK
|
67,000,000
SEK
|
133,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||||||||
| Liabilities | — |
16 251
SEK
|
— | — | — | — |
12 939
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — |
47 937
SEK
|
— | — | — | — |
42 087
SEK
|
— | — | — | — | — | — | — | — | — | — | — |