Statement Of Financial Position [Abstract]
| Concept |
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 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 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||||||||
| Investments accounted for using equity method | — |
6,931,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
9,997,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — |
7,367,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
7,164,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — |
1,765,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,449,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Non-current assets | — |
140,884,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
123,479,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||
| Current inventories | — |
36,603,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
35,513,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Current tax assets, current | — |
951,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
886,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — |
62,265,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
61,592,000,000
SEK
|
— | — | — | — | — |
51,997,000,000
SEK
|
— | — | — | — |
| Current assets | — |
142,940,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
138,833,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Assets | — |
283,824,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
262,312,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||
| Equity attributable to owners of parent | — |
90,418,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
59,412,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — |
4,560,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
11,006,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
49,841,000,000
SEK
|
94,978,000,000
SEK
|
8,452,000,000
SEK
|
90,418,000,000
SEK
|
1,244,000,000
SEK
|
31,655,000,000
SEK
|
4,560,000,000
SEK
|
1,653,000,000
SEK
|
61,000,000
SEK
|
40,323,000,000
SEK
|
11,006,000,000
SEK
|
59,412,000,000
SEK
|
51,000,000
SEK
|
8,452,000,000
SEK
|
1,379,000,000
SEK
|
11,497,000,000
SEK
|
70,418,000,000
SEK
|
468,000,000
SEK
|
53,883,000,000
SEK
|
9,765,000,000
SEK
|
1,023,000,000
SEK
|
11,497,000,000
SEK
|
63,648,000,000
SEK
|
37,170,000,000
SEK
|
4,310,000,000
SEK
|
8,452,000,000
SEK
|
51,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||||||||
| Non-current provisions for employee benefits | — |
11,961,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
14,187,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — |
2,340,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,044,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — |
62,731,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
65,540,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||||||||
| Current provisions | — |
8,607,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,530,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — |
1,402,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,486,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale | — |
2,125,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,749,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities | — |
126,115,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
126,354,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — |
283,824,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
262,312,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |