Statement Of Financial Position [Abstract]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Goodwill | — | — | — |
1 913
SEK
|
— | — |
1 943
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
583,000,000
SEK
|
— | — |
564,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
707,000,000
SEK
|
— | — |
534,000,000
SEK
|
— | — | — | — | — |
2 561
SEK
|
— | — | — | — | — |
| Assets | — | — | — |
31 950
SEK
|
— | — |
29 565
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital | — | — | — |
867,000,000
SEK
|
— | — |
867,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
4 477
SEK
|
— | — |
4 140
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — |
135,000,000
SEK
|
— | — |
331,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — |
7 324
SEK
|
— | — |
7 183
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
867,000,000
SEK
|
4 477
SEK
|
1 844
SEK
|
7 324
SEK
|
135,000,000
SEK
|
7 324
SEK
|
7 183
SEK
|
4 140
SEK
|
867,000,000
SEK
|
7 183
SEK
|
331,000,000
SEK
|
1 844
SEK
|
5 844
SEK
|
3 076
SEK
|
57,000,000
SEK
|
5 844
SEK
|
1 844
SEK
|
867,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||||||||
| Deferred tax liabilities | — | — | — |
889,000,000
SEK
|
— | — |
943,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — |
24 626
SEK
|
— | — |
22 382
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
31 950
SEK
|
— | — |
29 565
SEK
|
— | — | — | — | — | — | — | — | — | — | — |