Statement Of Cash Flows [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||
| Profit (loss) |
18,000,000
SEK
|
15,621,000,000
SEK
|
— |
15,639,000,000
SEK
|
13,639,000,000
SEK
|
— |
7,000,000
SEK
|
13,633,000,000
SEK
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||
| Other adjustments for non-cash items | — |
14,000,000
SEK
|
— | — |
123,000,000
SEK
|
— | — | — | — |
| Cash flows from (used in) operations | — |
29,415,000,000
SEK
|
— | — |
30,704,000,000
SEK
|
— | — | — | — |
| Interest paid, classified as operating activities | — |
3,366,000,000
SEK
|
— | — |
2,136,000,000
SEK
|
— | — | — | — |
| Interest received, classified as operating activities | — |
115,000,000
SEK
|
— | — |
14,000,000
SEK
|
— | — | — | — |
| Income taxes paid (refund), classified as operating activities | — |
4,772,000,000
SEK
|
— | — |
7,289,000,000
SEK
|
— | — | — | — |
| Cash flows from (used in) operating activities | — |
21,391,000,000
SEK
|
— | — |
21,294,000,000
SEK
|
— | — | — | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
460,000,000
SEK
|
— | — |
8,114,000,000
SEK
|
— | — | — | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
12,136,000,000
SEK
|
— | — |
53,566,000,000
SEK
|
— | — | — | — |
| Other inflows (outflows) of cash, classified as investing activities | — |
186,000,000
SEK
|
— | — |
27,000,000
SEK
|
— | — | — | — |
| Cash flows from (used in) investing activities | — |
13,925,000,000
SEK
|
— | — |
47,899,000,000
SEK
|
— | — | — | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||
| Payments from changes in ownership interests in subsidiaries that do not result in loss of control | — |
33,000,000
SEK
|
— | — |
38,000,000
SEK
|
— | — | — | — |
| Payments of lease liabilities, classified as financing activities | — |
1,797,000,000
SEK
|
— | — |
1,543,000,000
SEK
|
— | — | — | — |
| Dividends paid, classified as financing activities | — |
5,999,000,000
SEK
|
— | — |
5,332,000,000
SEK
|
— | — | — | — |
| Other inflows (outflows) of cash, classified as financing activities | — |
185,000,000
SEK
|
— | — |
2,247,000,000
SEK
|
— | — | — | — |
| Cash flows from (used in) financing activities | — |
4,447,000,000
SEK
|
— | — |
24,726,000,000
SEK
|
— | — | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
3,019,000,000
SEK
|
— | — |
1,880,000,000
SEK
|
— | — | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
20,000,000
SEK
|
— | — |
71,000,000
SEK
|
— | — | — | — |
| Cash and cash equivalents | — | — |
4,504,000,000
SEK
|
— | — |
1,466,000,000
SEK
|
— | — |
3,417,000,000
SEK
|