Statement Of Comprehensive Income [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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||
| Profit (loss) |
14,000,000
SEK
|
— | — |
572,000,000
SEK
|
— |
587,000,000
SEK
|
572,000,000
SEK
|
432,000,000
SEK
|
— |
446,000,000
SEK
|
15,000,000
SEK
|
432,000,000
SEK
|
— | — |
| Other comprehensive income [abstract] | ||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||
| Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans | — | — | — | — | — |
3,000,000
SEK
|
— | — | — |
5,000,000
SEK
|
— | — | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||
| Gains (losses) on exchange differences on translation of foreign operations, net of tax | — | — | — | — | — |
154,000,000
SEK
|
— | — | — |
291,000,000
SEK
|
— | — | — | — |
| Cash flow hedges [abstract] | ||||||||||||||
| Gains (losses) on cash flow hedges, net of tax | — | — | — | — | — |
9,000,000
SEK
|
— | — | — |
4,000,000
SEK
|
— | — | — | — |
| Hedges of net investment in foreign operations [abstract] | ||||||||||||||
| Gains (losses) on hedges of net investments in foreign operations, net of tax | — | — | — | — | — |
60,000,000
SEK
|
— | — | — |
108,000,000
SEK
|
— | — | — | — |
| Other comprehensive income |
4,000,000
SEK
|
99,000,000
SEK
|
— |
96,000,000
SEK
|
— |
100,000,000
SEK
|
3,000,000
SEK
|
5,000,000
SEK
|
— |
182,000,000
SEK
|
3,000,000
SEK
|
179,000,000
SEK
|
— |
184,000,000
SEK
|
| Comprehensive income |
18,000,000
SEK
|
99,000,000
SEK
|
–
SEK
|
669,000,000
SEK
|
–
SEK
|
687,000,000
SEK
|
569,000,000
SEK
|
437,000,000
SEK
|
–
SEK
|
265,000,000
SEK
|
12,000,000
SEK
|
253,000,000
SEK
|
–
SEK
|
184,000,000
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — |
669,000,000
SEK
|
— | — | — |
253,000,000
SEK
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — |
18,000,000
SEK
|
— | — | — |
12,000,000
SEK
|
— | — | — | — |