Statement Of Comprehensive Income [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
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 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||
| Profit (loss) |
-
SEK
|
-
SEK
|
1 242
SEK
|
15,000,000
SEK
|
1 227
SEK
|
-
SEK
|
-
SEK
|
1 283
SEK
|
1 267
SEK
|
16,000,000
SEK
|
-
SEK
|
-
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 | — | — |
212,000,000
SEK
|
— | — | — | — |
409,000,000
SEK
|
— | — | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations | — | — |
132,000,000
SEK
|
— | — | — | — |
142,000,000
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 | — | — |
44,000,000
SEK
|
— | — | — | — |
84,000,000
SEK
|
— | — | — | — |
| Other comprehensive income |
-
SEK
|
-
SEK
|
301,000,000
SEK
|
-
SEK
|
168,000,000
SEK
|
132,000,000
SEK
|
-
SEK
|
467,000,000
SEK
|
325,000,000
SEK
|
-
SEK
|
142,000,000
SEK
|
-
SEK
|
| Comprehensive income |
-
SEK
|
-
SEK
|
942,000,000
SEK
|
15,000,000
SEK
|
1 059
SEK
|
132,000,000
SEK
|
-
SEK
|
1 750
SEK
|
1 592
SEK
|
16,000,000
SEK
|
142,000,000
SEK
|
-
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||
| Comprehensive income, attributable to owners of parent | — | — |
927,000,000
SEK
|
— | — | — | — |
1 734
SEK
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — |
15,000,000
SEK
|
— | — | — | — |
16,000,000
SEK
|
— | — | — | — |