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 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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment |
9,091,000,000
SEK
|
— | — | — | — | — | — | — | — |
4,610,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
3,411,000,000
SEK
|
— | — | — | — | — | — | — | — |
2,318,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Goodwill |
9,039,000,000
SEK
|
— | — | — | — | — | — | — | — |
4,889,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
6,000,000
SEK
|
— | — | — | — | — | — | — | — |
61,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
2,628,000,000
SEK
|
— | — | — | — | — | — | — | — |
4,511,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
727,000,000
SEK
|
| Assets |
3 378,1
SEK
|
— | — | — | — | — | — | — | — |
2 237,7
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital |
6,000,000
SEK
|
— | — | — | — | — | — | — | — |
5,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
2,005,000,000
SEK
|
— | — | — | — | — | — | — | — |
471,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Share premium |
1 007,3
SEK
|
— | — | — | — | — | — | — | — |
8,988,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
83,000,000
SEK
|
— | — | — | — | — | — | — | — |
8,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
1 216,7
SEK
|
— | — | — | — | — | — | — | — |
9,473,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
268,000,000
SEK
|
— | — | — | — | — | — | — | — |
212,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
1 243,4
SEK
|
83,000,000
SEK
|
268,000,000
SEK
|
1 007,3
SEK
|
2,005,000,000
SEK
|
6,000,000
SEK
|
1 216,7
SEK
|
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
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities |
1,078,000,000
SEK
|
— | — | — | — | — | — | — | — |
576,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
3 378,1
SEK
|
— | — | — | — | — | — | — | — |
2 237,7
SEK
|
— | — | — | — | — | — | — | — | — | — | — |