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 | — | — |
4,610,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
3,589,000,000
SEK
|
— | — | — | — | — | — | — |
| Right-of-use assets | — | — |
2,318,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
1,343,000,000
SEK
|
— | — | — | — | — | — | — |
| Goodwill | — | — |
4,889,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
2,604,000,000
SEK
|
— | — | — | — | — | — | — |
| Deferred tax assets | — | — |
61,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
67,000,000
SEK
|
— | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
4,511,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
727,000,000
SEK
|
— | — | — |
1,824,000,000
SEK
|
— | — | — |
| Assets | — | — |
2 237,7
SEK
|
— | — | — | — | — | — | — | — | — | — |
1 316,4
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — |
5,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
6,000,000
SEK
|
— | — | — | — | — | — | — |
| Retained earnings | — | — |
471,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
24,000,000
SEK
|
— | — | — | — | — | — | — |
| Share premium | — | — |
8,988,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
2,938,000,000
SEK
|
— | — | — | — | — | — | — |
| Other reserves | — | — |
8,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
105,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — |
9,473,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
2,863,000,000
SEK
|
— | — | — | — | — | — | — |
| Non-controlling interests | — | — |
212,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
197,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity |
471,000,000
SEK
|
8,000,000
SEK
|
9,685,000,000
SEK
|
9,473,000,000
SEK
|
8,988,000,000
SEK
|
212,000,000
SEK
|
5,000,000
SEK
|
24,000,000
SEK
|
197,000,000
SEK
|
2,863,000,000
SEK
|
6,000,000
SEK
|
105,000,000
SEK
|
2,938,000,000
SEK
|
3,060,000,000
SEK
|
789,000,000
SEK
|
13,000,000
SEK
|
7,000,000
SEK
|
802,000,000
SEK
|
658,000,000
SEK
|
118,000,000
SEK
|
6,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — |
576,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
381,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities | — | — |
2 237,7
SEK
|
— | — | — | — | — | — | — | — | — | — |
1 316,4
SEK
|
— | — | — | — | — | — | — |