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 |
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 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||
| Profit (loss) | — | — |
2 428
SEK
|
— | — | — | — | — | — | — |
2 516
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 5 8
SEK
|
— | — | — | — | — | — | — |
1 126
SEK
|
— | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||
| Cash flow hedges [abstract] | ||||||||||||||
| Gains (losses) on cash flow hedges, before tax | — | — |
30,000,000
SEK
|
— | — | — | — | — | — | — |
1 5
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 | — | — |
68,000,000
SEK
|
— | — | — | — | — | — | — |
3 10
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 | — | — |
50,000,000
SEK
|
— | — | — | — | — | — | — |
19,000,000
SEK
|
— | — | — |
| Other comprehensive income | — | — |
1 128
SEK
|
— | — | — | — | — | — | — |
3 924
SEK
|
— | — | — |
| Comprehensive income |
–
SEK
|
–
SEK
|
1 301
SEK
|
15,000,000
SEK
|
2 223
SEK
|
1 285
SEK
|
937,000,000
SEK
|
–
SEK
|
6 378
SEK
|
3 072
SEK
|
6 440
SEK
|
3 307
SEK
|
62,000,000
SEK
|
–
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — |
1 285
SEK
|
— | — | — | — | — | — | — |
6 378
SEK
|
— | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — |
15,000,000
SEK
|
— | — | — | — | — | — | — |
62,000,000
SEK
|
— | — | — |