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 |
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) |
11,000,000
SEK
|
— | — |
7 058
SEK
|
7 069
SEK
|
7 058
SEK
|
5 399
SEK
|
5 410
SEK
|
— |
11,000,000
SEK
|
— |
5 399
SEK
|
| Other comprehensive income [abstract] | ||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans | — | — | — | — |
697,000,000
SEK
|
— | — |
147,000,000
SEK
|
— | — | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||
| Gains (losses) on exchange differences on translation of foreign operations, before tax | — | — | — | — |
1 099
SEK
|
— | — |
1 812
SEK
|
— | — | — | — |
| Reclassification adjustments on exchange differences on translation of foreign operations, before tax | — | — | — | — |
–
SEK
|
— | — |
33,000,000
SEK
|
— | — | — | — |
| Cash flow hedges [abstract] | ||||||||||||
| Other comprehensive income, before tax, cash flow hedges | — | — | — | — |
–
SEK
|
— | — |
0
SEK
|
— | — | — | — |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — | — | — | — |
141,000,000
SEK
|
— | — |
32,000,000
SEK
|
— | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — |
–
SEK
|
— | — |
0
SEK
|
— | — | — | — |
| Other comprehensive income |
6,000,000
SEK
|
0
SEK
|
1 093
SEK
|
1 649
SEK
|
1 655
SEK
|
556,000,000
SEK
|
115,000,000
SEK
|
1 960
SEK
|
1 837
SEK
|
8,000,000
SEK
|
0
SEK
|
1 952
SEK
|
| Comprehensive income |
17,000,000
SEK
|
0
SEK
|
1 093
SEK
|
8 707
SEK
|
8 724
SEK
|
7 614
SEK
|
5 284
SEK
|
3 450
SEK
|
1 837
SEK
|
3,000,000
SEK
|
0
SEK
|
3 447
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — |
8 707
SEK
|
— | — |
3 447
SEK
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — |
17,000,000
SEK
|
— | — |
3,000,000
SEK
|
— | — | — | — |