Statement Of Comprehensive Income [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||
| Profit (loss) | — |
8 397
SEK
|
8 411
SEK
|
8 397
SEK
|
14,000,000
SEK
|
— |
11,000,000
SEK
|
— | — |
7 058
SEK
|
7 069
SEK
|
7 058
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 | — | — |
687,000,000
SEK
|
— | — | — | — | — | — | — |
697,000,000
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 | — | — |
2 112
SEK
|
— | — | — | — | — | — | — |
1 099
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 | — | — |
139,000,000
SEK
|
— | — | — | — | — | — | — |
14 1
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 | — | — |
25,000,000
SEK
|
— | — | — | — | — | — | — |
–
SEK
|
— |
| Other comprehensive income |
94,000,000
SEK
|
2 747
SEK
|
2 754
SEK
|
548,000,000
SEK
|
7,000,000
SEK
|
2 105
SEK
|
6,000,000
SEK
|
0
SEK
|
1 093
SEK
|
1 649
SEK
|
1 655
SEK
|
556,000,000
SEK
|
| Comprehensive income |
94,000,000
SEK
|
11 144
SEK
|
11 165
SEK
|
8 945
SEK
|
21,000,000
SEK
|
2 105
SEK
|
17,000,000
SEK
|
0
SEK
|
1 093
SEK
|
8 707
SEK
|
8 724
SEK
|
7 614
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||
| Comprehensive income, attributable to owners of parent | — | — |
11 144
SEK
|
— | — | — | — | — | — | — |
8 707
SEK
|
— |
| Comprehensive income, attributable to non-controlling interests | — | — |
21,000,000
SEK
|
— | — | — | — | — | — | — |
17,000,000
SEK
|
— |