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 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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment |
382,000,000
SEK
|
— | — | — | — | — | — |
355,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
1 688
SEK
|
— | — | — | — | — | — |
1 954
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
205,000,000
SEK
|
— | — | — | — | — | — |
201,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets |
18 162
SEK
|
— | — | — | — | — | — |
18 217
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Current tax assets, current |
86,000,000
SEK
|
— | — | — | — | — | — |
166,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
1 167
SEK
|
— | — | — | — | — | — |
1 088
SEK
|
— | — | — | — | — | — | — | — | — |
2 112
SEK
|
— | — | — |
| Current assets |
10 010
SEK
|
— | — | — | — | — | — |
9 778
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets |
28 172
SEK
|
— | — | — | — | — | — |
27 996
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital |
283,000,000
SEK
|
— | — | — | — | — | — |
283,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
6 448
SEK
|
— | — | — | — | — | — |
6 085
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other equity interest |
4 949
SEK
|
— | — | — | — | — | — |
4 949
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
773,000,000
SEK
|
— | — | — | — | — | — |
858,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
12 454
SEK
|
— | — | — | — | — | — |
12 176
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
1,000,000
SEK
|
— | — | — | — | — | — |
2,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
12 454
SEK
|
6 448
SEK
|
773,000,000
SEK
|
1,000,000
SEK
|
283,000,000
SEK
|
12 454
SEK
|
4 949
SEK
|
12 178
SEK
|
858,000,000
SEK
|
2,000,000
SEK
|
6 085
SEK
|
283,000,000
SEK
|
12 176
SEK
|
4 949
SEK
|
5 533
SEK
|
234,000,000
SEK
|
4 942
SEK
|
10 993
SEK
|
10 992
SEK
|
1,000,000
SEK
|
283,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions for employee benefits |
159,000,000
SEK
|
— | — | — | — | — | — |
155,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current provisions |
54,000,000
SEK
|
— | — | — | — | — | — |
105,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities |
393,000,000
SEK
|
— | — | — | — | — | — |
397,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
6 674
SEK
|
— | — | — | — | — | — |
6 797
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Other current provisions |
61,000,000
SEK
|
— | — | — | — | — | — |
45,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current |
177,000,000
SEK
|
— | — | — | — | — | — |
320,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities |
9 043
SEK
|
— | — | — | — | — | — |
9 021
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
15 716
SEK
|
— | — | — | — | — | — |
15 817
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
28 172
SEK
|
— | — | — | — | — | — |
27 996
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |