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) |
3 556
SEK
|
— |
11 367
SEK
|
14 924
SEK
|
11 367
SEK
|
3 591
SEK
|
4 108
SEK
|
517,000,000
SEK
|
3 591
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 | — | — | — |
7,000,000
SEK
|
— | — |
21,000,000
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 | — | — | — |
180,000,000
SEK
|
— | — |
187,000,000
SEK
|
— | — | — |
| Cash flow hedges [abstract] | ||||||||||
| Gains (losses) on cash flow hedges, before tax | — | — | — |
182,000,000
SEK
|
— | — |
380,000,000
SEK
|
— | — | — |
| Reclassification adjustments on cash flow hedges, before tax | — | — | — |
349,000,000
SEK
|
— | — |
105,000,000
SEK
|
— | — | — |
| Amounts removed from equity and included in carrying amount of non-financial asset (liability) whose acquisition or incurrence was hedged highly probable forecast transaction, before tax | — | — | — |
27,000,000
SEK
|
— | — |
2,000,000
SEK
|
— | — | — |
| Hedges of net investment in foreign operations [abstract] | ||||||||||
| Other comprehensive income, before tax, hedges of net investments in foreign operations | — | — | — |
39,000,000
SEK
|
— | — |
29,000,000
SEK
|
— | — | — |
| Financial assets measured at fair value through other comprehensive income [abstract] | ||||||||||
| Gains (losses) on financial assets measured at fair value through other comprehensive income, before tax | — | — | — |
3 071
SEK
|
— | — |
376,000,000
SEK
|
— | — | — |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — | — |
1 202
SEK
|
— | — |
165,000,000
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 | — | — | — |
97,000,000
SEK
|
— | — |
61,000,000
SEK
|
— | — | — |
| Other comprehensive income |
2 113
SEK
|
3 769
SEK
|
3 830
SEK
|
5 943
SEK
|
61,000,000
SEK
|
6,000,000
SEK
|
515,000,000
SEK
|
653,000,000
SEK
|
138,000,000
SEK
|
144,000,000
SEK
|
| Comprehensive income |
5 669
SEK
|
3 769
SEK
|
15 197
SEK
|
20 866
SEK
|
11 428
SEK
|
3 597
SEK
|
4 623
SEK
|
1 169
SEK
|
3 453
SEK
|
144,000,000
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
15 197
SEK
|
— | — |
3 453
SEK
|
— | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — |
5 669
SEK
|
— | — |
1 169
SEK
|
— | — | — |