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 |
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 |
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 |
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 |
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] | ||||||||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||||||||
| Revenue | — | — | — | — | — | — | — | — | — | — | — |
40,911,000,000
SEK
|
— |
41,468,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||||||||||
| Research and development expense | — | — | — | — | — | — | — | — | — | — | — |
1,159,000,000
SEK
|
— |
1,039,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Selling, general and administrative expense [abstract] | ||||||||||||||||||||||||
| Selling expense | — | — | — | — | — | — | — | — | — | — | — |
4,443,000,000
SEK
|
— |
4,125,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||||||||||
| Tax expense other than income tax expense | — | — | — | — | — | — | — | — | — | — | — |
33,000,000
SEK
|
— |
25,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||||||||||
| Share of profit (loss) of joint ventures accounted for using equity method | — | — | — | — | — | — | — | — | — | — | — |
76,000,000
SEK
|
— |
22,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — | — | — | — | — | — | — | — | — | — |
141,000,000
SEK
|
— |
87,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — | — | — | — | — | — | — | — |
66,000,000
SEK
|
— |
76,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||||||||
| Comprehensive income |
63,000,000
SEK
|
347,000,000
SEK
|
6,834,000,000
SEK
|
1,639,000,000
SEK
|
4,759,000,000
SEK
|
443,000,000
SEK
|
340,000,000
SEK
|
42,000,000
SEK
|
–
SEK
|
21,000,000
SEK
|
–
SEK
|
6,897,000,000
SEK
|
27,000,000
SEK
|
1,324,000,000
SEK
|
345,000,000
SEK
|
125,000,000
SEK
|
590,000,000
SEK
|
–
SEK
|
–
SEK
|
16,000,000
SEK
|
1,308,000,000
SEK
|
2,365,000,000
SEK
|
3,553,000,000
SEK
|
11,000,000
SEK
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — | — | — | — | — | — |
6,834,000,000
SEK
|
— |
1,308,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — | — | — | — | — | — |
63,000,000
SEK
|
— |
16,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |