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 |
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) | — | — |
5,764,000,000
SEK
|
— | — | — | — | — |
4,696,000,000
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 |
105,000,000
SEK
|
— |
105,000,000
SEK
|
105,000,000
SEK
|
— | — | — |
105,000,000
SEK
|
105,000,000
SEK
|
105,000,000
SEK
|
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||
| Hedges of net investment in foreign operations [abstract] | ||||||||||
| Other comprehensive income, before tax, hedges of net investments in foreign operations |
507,000,000
SEK
|
507,000,000
SEK
|
507,000,000
SEK
|
— | — | — |
10,000,000
SEK
|
10,000,000
SEK
|
10,000,000
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 |
22,000,000
SEK
|
— |
22,000,000
SEK
|
22,000,000
SEK
|
— | — | — |
22,000,000
SEK
|
22,000,000
SEK
|
22,000,000
SEK
|
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||
| Income tax relating to hedges of net investments in foreign operations included in other comprehensive income |
104,000,000
SEK
|
104,000,000
SEK
|
104,000,000
SEK
|
— | — | — |
2,000,000
SEK
|
2,000,000
SEK
|
2,000,000
SEK
|
— |
| Other comprehensive income | — | — |
3,108,000,000
SEK
|
— | — | — | — | — |
1,666,000,000
SEK
|
— |
| Comprehensive income |
8,871,000,000
SEK
|
3,025,000,000
SEK
|
8,872,000,000
SEK
|
5,846,000,000
SEK
|
1,000,000
SEK
|
53,000,000
SEK
|
1,571,000,000
SEK
|
6,309,000,000
SEK
|
6,362,000,000
SEK
|
4,738,000,000
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||
| Comprehensive income, attributable to owners of parent | — | — |
8,871,000,000
SEK
|
— | — | — | — | — |
6,309,000,000
SEK
|
— |
| Comprehensive income, attributable to non-controlling interests | — | — |
1,000,000
SEK
|
— | — | — | — | — |
53,000,000
SEK
|
— |