Statement Of Financial Position [Abstract]
| Concept |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Property, plant and equipment |
1 179,5
SEK
|
— | — | — | — | — |
9,431,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
114,000,000
SEK
|
— | — | — | — | — |
44,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Investment property |
1 159,5
SEK
|
— | — | — | — | — |
9,298,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Other financial assets |
0
SEK
|
— | — | — | — | — |
0
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
3,602,000,000
SEK
|
— | — | — | — | — |
6,308,000,000
SEK
|
— | — | — | — | — |
5,104,000,000
SEK
|
— | — | — | — | — |
| Assets |
6 474,4
SEK
|
— | — | — | — | — |
6 359,4
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital |
1,551,000,000
SEK
|
— | — | — | — | — |
1,551,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
5,947,000,000
SEK
|
— | — | — | — | — |
9,607,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
1 145,0
SEK
|
— | — | — | — | — |
1 511,8
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
52,000,000
SEK
|
— | — | — | — | — |
87,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
1 139,8
SEK
|
52,000,000
SEK
|
3,953,000,000
SEK
|
5,947,000,000
SEK
|
1,551,000,000
SEK
|
1 145,0
SEK
|
1 520,5
SEK
|
9,607,000,000
SEK
|
1 511,8
SEK
|
3,960,000,000
SEK
|
87,000,000
SEK
|
1,551,000,000
SEK
|
1 474,4
SEK
|
9,208,000,000
SEK
|
1,551,000,000
SEK
|
47,000,000
SEK
|
3,938,000,000
SEK
|
1 469,7
SEK
|
| Liabilities [abstract] | ||||||||||||||||||
| Deferred tax liabilities |
1,234,000,000
SEK
|
— | — | — | — | — |
409,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
5 334,6
SEK
|
— | — | — | — | — |
4 838,9
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
6 474,4
SEK
|
— | — | — | — | — |
6 359
SEK
|
— | — | — | — | — | — | — | — | — | — | — |