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 |
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 |
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) |
87,000,000
SEK
|
— |
3,223,000,000
SEK
|
3,311,000,000
SEK
|
3,223,000,000
SEK
|
2,871,000,000
SEK
|
— |
2,919,000,000
SEK
|
48,000,000
SEK
|
2,871,000,000
SEK
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||||
| Adjustments for decrease (increase) in inventories | — | — | — |
1,283,000,000
SEK
|
— | — | — |
768,000,000
SEK
|
— | — | — |
| Adjustments for decrease (increase) in other operating receivables | — | — | — |
2,536,000,000
SEK
|
— | — | — |
3,263,000,000
SEK
|
— | — | — |
| Adjustments for increase (decrease) in other operating payables | — | — | — |
2,434,000,000
SEK
|
— | — | — |
577,000,000
SEK
|
— | — | — |
| Other adjustments for non-cash items | — | — | — |
8,477,000,000
SEK
|
— | — | — |
8,923,000,000
SEK
|
— | — | — |
| Cash flows from (used in) operating activities | — | — | — |
1 063,2
SEK
|
— | — | — |
1 725,3
SEK
|
— | — | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — |
1 266,8
SEK
|
— | — | — |
295,000,000
SEK
|
— | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — |
116,000,000
SEK
|
— | — | — |
57,000,000
SEK
|
— | — | — |
| Other inflows (outflows) of cash, classified as investing activities | — | — | — |
3,000,000
SEK
|
— | — | — |
8,000,000
SEK
|
— | — | — |
| Cash flows from (used in) investing activities | — | — | — |
1 394,4
SEK
|
— | — | — |
1,157,000,000
SEK
|
— | — | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||
| Proceeds from changes in ownership interests in subsidiaries that do not result in loss of control | — | — | — | — | — | — | — |
576,000,000
SEK
|
— | — | — |
| Proceeds from borrowings, classified as financing activities | — | — | — |
3 089,0
SEK
|
— | — | — | — | — | — | — |
| Repayments of borrowings, classified as financing activities | — | — | — |
2 075,4
SEK
|
— | — | — |
1,668,000,000
SEK
|
— | — | — |
| Payments of lease liabilities, classified as financing activities | — | — | — |
6,476,000,000
SEK
|
— | — | — |
6,579,000,000
SEK
|
— | — | — |
| Cash flows from (used in) financing activities | — | — | — |
542,000,000
SEK
|
— | — | — |
1 059,8
SEK
|
— | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — |
2,770,000,000
SEK
|
— | — | — |
5,499,000,000
SEK
|
— | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — |
737,000,000
SEK
|
— | — | — |
1,037,000,000
SEK
|
— | — | — |
| Cash and cash equivalents | — |
8,981,000,000
SEK
|
— | — | — | — |
1 101,4
SEK
|
— | — | — |
6,552,000,000
SEK
|