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) |
0
SEK
|
— | — |
5 37
SEK
|
— |
537,000,000
SEK
|
5 37
SEK
|
596,000,000
SEK
|
— |
596,000,000
SEK
|
— |
0
SEK
|
59 6
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 | — | — | — | — | — |
5,000,000
SEK
|
— | — | — |
5,000,000
SEK
|
— | — | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||
| Reclassification adjustments on exchange differences on translation of foreign operations, before tax | — | — | — | — | — |
29,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Other comprehensive income, before tax, exchange differences on translation of foreign operations | — | — | — | — | — |
14 8
SEK
|
— | — | — |
356,000,000
SEK
|
— | — | — | — |
| Hedges of net investment in foreign operations [abstract] | ||||||||||||||
| Reclassification adjustments on hedges of net investments in foreign operations, before tax | — | — | — | — | — |
69,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Other comprehensive income, before tax, hedges of net investments in foreign operations | — | — | — | — | — |
37,000,000
SEK
|
— | — | — |
47,000,000
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 | — | — | — | — | — |
0
SEK
|
— | — | — |
1,000,000
SEK
|
— | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||||
| Income tax relating to hedges of net investments in foreign operations included in other comprehensive income | — | — | — | — | — |
8,000,000
SEK
|
— | — | — |
10,000,000
SEK
|
— | — | — | — |
| Other comprehensive income | — | — | — | — | — |
18 2
SEK
|
— | — | — |
3 15
SEK
|
— | — | — | — |
| Comprehensive income |
0
SEK
|
-
SEK
|
177,000,000
SEK
|
719,000,000
SEK
|
-
SEK
|
7 19
SEK
|
542,000,000
SEK
|
600,000,000
SEK
|
-
SEK
|
281,000,000
SEK
|
319,000,000
SEK
|
0
SEK
|
281,000,000
SEK
|
-
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — |
719,000,000
SEK
|
— | — | — |
281,000,000
SEK
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — |
0
SEK
|
— | — | — |
0
SEK
|
— | — | — | — |