Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2023-01-01 |
As at 2022-12-31 |
As at 2022-01-01 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Trade and other non-current receivables [abstract] | ||||
| Other non-current receivables |
570,000,000
SEK
|
— |
283,000,000
SEK
|
— |
| Trade and other receivables [abstract] | ||||
| Other receivables |
68,000,000
SEK
|
— |
41,000,000
SEK
|
— |
| Categories of non-current financial assets [abstract] | ||||
| Non-current financial assets at fair value through profit or loss [abstract] | ||||
| Non-current financial assets at fair value through profit or loss |
1 927,7
SEK
|
— |
1 969,4
SEK
|
— |
| Cash and cash equivalents [abstract] | ||||
| Cash and cash equivalents |
3,057,000,000
SEK
|
1,864,000,000
SEK
|
1,864,000,000
SEK
|
4,669,000,000
SEK
|
| Trade and other non-current payables [abstract] | ||||
| Other non-current payables |
89,000,000
SEK
|
— |
75,000,000
SEK
|
— |
| Issued capital [abstract] | ||||
| Issued capital |
53,000,000
SEK
|
— |
53,000,000
SEK
|
— |
| Retained earnings [abstract] | ||||
| Retained earnings |
3 918,3
SEK
|
— |
3 778,6
SEK
|
— |
| Miscellaneous equity [abstract] | ||||
| Additional paid-in capital |
11,000,000
SEK
|
— |
11,000,000
SEK
|
— |
| Net assets (liabilities) [abstract] | ||||
| Assets |
3 933,6
SEK
|
— |
3 792,5
SEK
|
— |
| Liabilities |
89,000,000
SEK
|
— |
75,000,000
SEK
|
— |
| Net current assets (liabilities) [abstract] | ||||
| Current assets |
2 240,3
SEK
|
— |
2 160,0
SEK
|
— |
| Assets less current liabilities [abstract] |