Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||
| Profit (loss) |
41,000,000
SEK
|
— |
4,696,000,000
SEK
|
4,655,000,000
SEK
|
5,657,000,000
SEK
|
— |
5,724,000,000
SEK
|
67,000,000
SEK
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||
| Adjustments for decrease (increase) in inventories | — | — |
1,879,000,000
SEK
|
— | — | — |
2,310,000,000
SEK
|
— | — |
| Adjustments for unrealised foreign exchange losses (gains) | — | — |
123,000,000
SEK
|
— | — | — |
861,000,000
SEK
|
— | — |
| Adjustments for fair value losses (gains) | — | — |
–
SEK
|
— | — | — |
412,000,000
SEK
|
— | — |
| Other adjustments for non-cash items | — | — |
28,000,000
SEK
|
— | — | — |
70,000,000
SEK
|
— | — |
| Adjustments to reconcile profit (loss) | — | — |
1 141,5
SEK
|
— | — | — |
8,210,000,000
SEK
|
— | — |
| Interest received, classified as operating activities | — | — |
27,000,000
SEK
|
— | — | — |
35,000,000
SEK
|
— | — |
| Cash flows from (used in) operating activities | — | — |
8,025,000,000
SEK
|
— | — | — |
1 137,9
SEK
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — |
83,000,000
SEK
|
— | — | — |
–
SEK
|
— | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — |
1,244,000,000
SEK
|
— | — | — |
1,134,000,000
SEK
|
— | — |
| Purchase of property, plant and equipment, classified as investing activities | — | — |
1,169,000,000
SEK
|
— | — | — |
1,585,000,000
SEK
|
— | — |
| Purchase of intangible assets, classified as investing activities | — | — |
326,000,000
SEK
|
— | — | — |
251,000,000
SEK
|
— | — |
| Other inflows (outflows) of cash, classified as investing activities | — | — |
70,000,000
SEK
|
— | — | — |
69,000,000
SEK
|
— | — |
| Cash flows from (used in) investing activities | — | — |
2,668,000,000
SEK
|
— | — | — |
2,928,000,000
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 | — | — |
1,292,000,000
SEK
|
— | — | — |
–
SEK
|
— | — |
| Proceeds from borrowings, classified as financing activities | — | — |
628,000,000
SEK
|
— | — | — |
–
SEK
|
— | — |
| Repayments of borrowings, classified as financing activities | — | — |
1,684,000,000
SEK
|
— | — | — |
1,103,000,000
SEK
|
— | — |
| Payments of lease liabilities, classified as financing activities | — | — |
1,472,000,000
SEK
|
— | — | — |
1,523,000,000
SEK
|
— | — |
| Dividends paid, classified as financing activities | — | — |
881,000,000
SEK
|
— | — | — |
63,000,000
SEK
|
— | — |
| Cash flows from (used in) financing activities | — | — |
4,701,000,000
SEK
|
— | — | — |
2,689,000,000
SEK
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — |
656,000,000
SEK
|
— | — | — |
5,762,000,000
SEK
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — |
519,000,000
SEK
|
— | — | — |
857,000,000
SEK
|
— | — |
| Cash and cash equivalents | — |
1 741,5
SEK
|
— | — | — |
1 624,0
SEK
|
— | — |
1 133,5
SEK
|