Statement Of Comprehensive Income [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||
| Profit (loss) |
64,000,000
SEK
|
1,001,000,000
SEK
|
— | — |
937,000,000
SEK
|
985,000,000
SEK
|
77,000,000
SEK
|
— |
908,000,000
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 | — |
2,000,000
SEK
|
— | — | — |
18,000,000
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 | — |
2,000,000
SEK
|
— | — | — |
0
SEK
|
— | — | — | — |
| Cash flow hedges [abstract] | ||||||||||
| Other comprehensive income, before tax, cash flow hedges | — |
33,000,000
SEK
|
— | — | — |
40,000,000
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 | — |
0
SEK
|
— | — | — |
4,000,000
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 | — |
7,000,000
SEK
|
— | — | — |
8,000,000
SEK
|
— | — | — | — |
| Other comprehensive income |
0
SEK
|
26,000,000
SEK
|
26,000,000
SEK
|
4,000,000
SEK
|
4,000,000
SEK
|
18,000,000
SEK
|
0
SEK
|
32,000,000
SEK
|
14,000,000
SEK
|
0
SEK
|
| Comprehensive income | — |
1,027,000,000
SEK
|
— | — | — |
1,003,000,000
SEK
|
— | — | — | — |
| Comprehensive income attributable to [abstract] | ||||||||||
| Comprehensive income, attributable to owners of parent | — |
963,000,000
SEK
|
— | — | — |
926,000,000
SEK
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — |
64,000,000
SEK
|
— | — | — |
77,000,000
SEK
|
— | — | — | — |