Analysis Of Income And Expense [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||
| Material income and expense [abstract] | ||||||||
| Research and development expense | — | — |
3,936,000,000
SEK
|
— | — |
3,902,000,000
SEK
|
— | — |
| Other operating income (expense) | — | — |
377,000,000
SEK
|
— | — |
1,415,000,000
SEK
|
— | — |
| Selling, general and administrative expense [abstract] | ||||||||
| Selling expense | — | — |
14,374,000,000
SEK
|
— | — |
14,743,000,000
SEK
|
— | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — |
19,000,000
SEK
|
— | — |
257,000,000
SEK
|
— | — |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax [abstract] | ||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax | — | — |
6,000,000
SEK
|
— | — |
70,000,000
SEK
|
— | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — |
23,000,000
SEK
|
— | — |
16,000,000
SEK
|
— | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income |
1,000,000
SEK
|
3,444,000,000
SEK
|
15,050,000,000
SEK
|
11,605,000,000
SEK
|
8,909,000,000
SEK
|
3,975,000,000
SEK
|
0
SEK
|
4,934,000,000
SEK
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income, attributable to owners of parent | — | — |
15,049,000,000
SEK
|
— | — |
3,975,000,000
SEK
|
— | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income, attributable to non-controlling interests | — | — |
1,000,000
SEK
|
— | — |
0
SEK
|
— | — |