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 |
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 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||
| Profit (loss) |
—
SEK
|
14,066,000,000
SEK
|
1,013,000,000
SEK
|
13,053,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
13,053,000,000
SEK
|
—
SEK
|
—
SEK
|
15,577,000,000
SEK
|
17,003,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
15,577,000,000
SEK
|
1,426,000,000
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 |
—
SEK
|
1,815,000,000
SEK
|
—
SEK
|
1,815,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
1,815,000,000
SEK
|
—
SEK
|
—
SEK
|
4,560,000,000
SEK
|
4,560,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
4,560,000,000
SEK
|
—
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 |
—
SEK
|
1,240,000,000
SEK
|
229,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
1,011,000,000
SEK
|
1,011,000,000
SEK
|
—
SEK
|
3,902,000,000
SEK
|
3,872,000,000
SEK
|
—
SEK
|
—
SEK
|
3,902,000,000
SEK
|
—
SEK
|
—
SEK
|
30,000,000
SEK
|
| Cash flow hedges [abstract] | ||||||||||||||||||
| Gains (losses) on cash flow hedges, before tax |
—
SEK
|
1,976,000,000
SEK
|
24,000,000
SEK
|
—
SEK
|
—
SEK
|
2,000,000,000
SEK
|
—
SEK
|
2,000,000,000
SEK
|
—
SEK
|
—
SEK
|
2,102,000,000
SEK
|
2,289,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
2,102,000,000
SEK
|
—
SEK
|
187,000,000
SEK
|
| Hedges of net investment in foreign operations [abstract] | ||||||||||||||||||
| Other comprehensive income, before tax, hedges of net investments in foreign operations |
—
SEK
|
131,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
131,000,000
SEK
|
131,000,000
SEK
|
—
SEK
|
710,000,000
SEK
|
710,000,000
SEK
|
—
SEK
|
—
SEK
|
710,000,000
SEK
|
—
SEK
|
—
SEK
|
—
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 | — |
424,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
998,000,000
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 | — |
435,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
319,000,000
SEK
|
— | — | — | — | — | — |
| Other comprehensive income |
—
SEK
|
959,000,000
SEK
|
249,000,000
SEK
|
1,391,000,000
SEK
|
—
SEK
|
1,588,000,000
SEK
|
—
SEK
|
710,000,000
SEK
|
907,000,000
SEK
|
—
SEK
|
8,573,000,000
SEK
|
8,694,000,000
SEK
|
—
SEK
|
—
SEK
|
3,339,000,000
SEK
|
1,672,000,000
SEK
|
3,562,000,000
SEK
|
121,000,000
SEK
|
| Comprehensive income |
—
SEK
|
13,107,000,000
SEK
|
764,000,000
SEK
|
11,662,000,000
SEK
|
—
SEK
|
1,588,000,000
SEK
|
—
SEK
|
12,343,000,000
SEK
|
907,000,000
SEK
|
—
SEK
|
24,150,000,000
SEK
|
25,697,000,000
SEK
|
—
SEK
|
—
SEK
|
3,339,000,000
SEK
|
1,672,000,000
SEK
|
19,139,000,000
SEK
|
1,547,000,000
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — |
12,343,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
24,150,000,000
SEK
|
— | — | — | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — |
764,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
1,547,000,000
SEK
|
— | — | — | — | — | — |