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 |
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) |
2,000,000
SEK
|
— |
2 095
SEK
|
2 097
SEK
|
2 095
SEK
|
1 669
SEK
|
1 669
SEK
|
0
SEK
|
1 669
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 | — | — |
54,000,000
SEK
|
54,000,000
SEK
|
54,000,000
SEK
|
16,000,000
SEK
|
16,000,000
SEK
|
— |
16,000,000
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 |
0
SEK
|
203,000,000
SEK
|
203,000,000
SEK
|
203,000,000
SEK
|
— | — |
279,000,000
SEK
|
0
SEK
|
279,000,000
SEK
|
279,000,000
SEK
|
| Cash flow hedges [abstract] | ||||||||||
| Gains (losses) on cash flow hedges, before tax | — |
1,000,000
SEK
|
1,000,000
SEK
|
1,000,000
SEK
|
— | — |
4,000,000
SEK
|
— |
4,000,000
SEK
|
4,000,000
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 | — | — |
11,000,000
SEK
|
11,000,000
SEK
|
11,000,000
SEK
|
3,000,000
SEK
|
3,000,000
SEK
|
— |
3,000,000
SEK
|
— |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||
| Income tax relating to cash flow hedges included in other comprehensive income | — |
0
SEK
|
0
SEK
|
0
SEK
|
— | — |
1,000,000
SEK
|
— |
1,000,000
SEK
|
1,000,000
SEK
|
| Other comprehensive income | — | — | — |
247,000,000
SEK
|
— | — |
289,000,000
SEK
|
— | — | — |
| Comprehensive income | — | — | — |
2 344
SEK
|
— | — |
1 380
SEK
|
— | — | — |
| Comprehensive income attributable to [abstract] | ||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
2 342
SEK
|
— | — |
1 380
SEK
|
— | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — |
2,000,000
SEK
|
— | — |
0
SEK
|
— | — | — |