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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Property, plant and equipment |
10 726,6
SEK
|
— | — | — | — |
6 902,9
SEK
|
— | — | — | — | — | — | — | — | — |
| Investment property |
9 603,7
SEK
|
— | — | — | — |
6 853,5
SEK
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets |
171,000,000
SEK
|
— | — | — | — |
270,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
940,000,000
SEK
|
— | — | — | — |
5,076,000,000
SEK
|
— | — | — | — | — |
7,790,000,000
SEK
|
— | — | — |
| Assets |
11 482,7
SEK
|
— | — | — | — |
7 659,6
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital |
574,000,000
SEK
|
— | — | — | — |
574,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Retained earnings |
2 801,1
SEK
|
— | — | — | — |
1 780,9
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity |
4 233,7
SEK
|
2 801,1
SEK
|
1 372,9
SEK
|
23,000,000
SEK
|
574,000,000
SEK
|
3 209,8
SEK
|
574,000,000
SEK
|
1 781,0
SEK
|
14,000,000
SEK
|
1 372,9
SEK
|
1 306,4
SEK
|
2 238,5
SEK
|
0
SEK
|
8,779,000,000
SEK
|
542,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||
| Deferred tax liabilities |
7,964,000,000
SEK
|
— | — | — | — |
4,512,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Liabilities |
7 249,0
SEK
|
— | — | — | — |
4 449,8
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities |
11 482,7
SEK
|
— | — | — | — |
7 659,6
SEK
|
— | — | — | — | — | — | — | — | — |