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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Non-current assets [abstract] | |||||||||||||||
| Property, plant and equipment | — | — | — |
3,111,000,000
SEK
|
— |
2,820,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — |
1,693,000,000
SEK
|
— |
1,633,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — |
2 917,3
SEK
|
— |
2 842,3
SEK
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
50,000,000
SEK
|
— |
18,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
3 673,9
SEK
|
— |
3 554,1
SEK
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||
| Current inventories | — | — | — |
294,000,000
SEK
|
— |
255,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
4,676,000,000
SEK
|
— |
4,526,000,000
SEK
|
— | — | — | — | — |
2,716,000,000
SEK
|
— | — | — |
| Current assets | — | — | — |
1 538,2
SEK
|
— |
1 495,4
SEK
|
— | — | — | — | — | — | — | — | — |
| Assets | — | — | — |
5 212,0
SEK
|
— |
5 049,5
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — | — | — |
25,000,000
SEK
|
— |
25,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
7,129,000,000
SEK
|
— |
5,781,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — |
430,000,000
SEK
|
— |
885,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity |
25,000,000
SEK
|
7,129,000,000
SEK
|
1 423,9
SEK
|
2 182,3
SEK
|
430,000,000
SEK
|
2 092,5
SEK
|
5,781,000,000
SEK
|
25,000,000
SEK
|
885,000,000
SEK
|
1 423,4
SEK
|
3,644,000,000
SEK
|
1 269,6
SEK
|
156,000,000
SEK
|
8,873,000,000
SEK
|
23,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||
| Non-current provisions | — | — | — |
85,000,000
SEK
|
— |
107,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — |
1,463,000,000
SEK
|
— |
1,226,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
1 818,3
SEK
|
— |
1 843,8
SEK
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||
| Current tax liabilities, current | — | — | — |
250,000,000
SEK
|
— |
436,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
1 211,3
SEK
|
— |
1 113,3
SEK
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
5 212,0
SEK
|
— |
5 049,5
SEK
|
— | — | — | — | — | — | — | — | — |