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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||
| Assets [abstract] | ||||||||||||
| Property, plant and equipment |
36 489,4
SEK
|
— | — | — |
32 375,9
SEK
|
— | — | — | — | — | — | — |
| Investment property |
35 323,0
SEK
|
— | — | — |
31 168,3
SEK
|
— | — | — | — | — | — | — |
| Intangible assets other than goodwill |
1 165,0
SEK
|
— | — | — |
1 030,0
SEK
|
— | — | — | — | — | — | — |
| Cash and cash equivalents |
2,107,000,000
SEK
|
— | — | — |
1,471,000,000
SEK
|
— | — | — | — | — | — | — |
| Assets |
37 922,1
SEK
|
— | — | — |
33 148,3
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||
| Equity [abstract] | ||||||||||||
| Issued capital |
6,786,000,000
SEK
|
— | — | — |
6,581,000,000
SEK
|
— | — | — | — | — | — | — |
| Retained earnings |
14 186,8
SEK
|
— | — | — |
11 280,8
SEK
|
— | — | — | — | — | — | — |
| Other reserves |
2 592,0
SEK
|
— | — | — |
2 118,5
SEK
|
— | — | — | — | — | — | — |
| Equity attributable to owners of parent |
3 367,7
SEK
|
— | — | — |
1 632,2
SEK
|
— | — | — | — | — | — | — |
| Non-controlling interests |
-
SEK
|
— | — | — |
–
SEK
|
— | — | — | — | — | — | — |
| Equity |
17 457,4
SEK
|
14 186,8
SEK
|
2 592,0
SEK
|
6,786,000,000
SEK
|
14 057,4
SEK
|
6,581,000,000
SEK
|
11 280,8
SEK
|
2 118,5
SEK
|
10 076,6
SEK
|
1 903,7
SEK
|
12 631,7
SEK
|
6,514,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||
| Deferred tax liabilities |
3 227,4
SEK
|
— | — | — |
2 463,7
SEK
|
— | — | — | — | — | — | — |
| Liabilities |
20 464,7
SEK
|
— | — | — |
19 090,9
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities |
37 922,1
SEK
|
— | — | — |
33 148,3
SEK
|
— | — | — | — | — | — | — |