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] | ||||||||
| Revenue [abstract] | ||||||||
| Revenue | — | — |
18 567
SEK
|
— | — |
15 028
SEK
|
— | — |
| Material income and expense [abstract] | ||||||||
| Research and development expense | — | — |
476,000,000
SEK
|
— | — |
4 06
SEK
|
— | — |
| Miscellaneous other operating income | — | — |
190,000,000
SEK
|
— | — |
13 4
SEK
|
— | — |
| Miscellaneous other operating expense | — | — |
112,000,000
SEK
|
— | — |
10 5
SEK
|
— | — |
| Sales and marketing expense | — | — |
2 807
SEK
|
— | — |
2 254
SEK
|
— | — |
| Expenses by nature [abstract] | ||||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||
| Depreciation and amortisation expense [abstract] | ||||||||
| Depreciation and amortisation expense | — | — |
573,000,000
SEK
|
— | — |
424,000,000
SEK
|
— | — |
| Disclosure of attribution of expenses by nature to their function [text block] | — | — | — | — | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [abstract] | ||||||||
| Disclosure of attribution of expenses by nature to their function [line items] | ||||||||
| 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 | — | — |
2 379
SEK
|
— | — |
3 977
SEK
|
— | — |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of 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, net of tax | — | — |
23 9
SEK
|
— | — |
994,000,000
SEK
|
— | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income |
5,000,000
SEK
|
358,000,000
SEK
|
4 510
SEK
|
4 147
SEK
|
4 329
SEK
|
3 887
SEK
|
1,000,000
SEK
|
44 3
SEK
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income, attributable to owners of parent | — | — |
4 506
SEK
|
— | — |
3 883
SEK
|
— | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income, attributable to non-controlling interests | — | — |
4,000,000
SEK
|
— | — |
4,000,000
SEK
|
— | — |