Statement Of Cash Flows [Abstract]
| Concept |
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 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||
| Cash flows from (used in) operating activities [abstract] | |||||||
| Profit (loss) | — |
2,235,000,000
SEK
|
2,235,000,000
SEK
|
844,000,000
SEK
|
— |
844,000,000
SEK
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||
| Adjustments for decrease (increase) in inventories | — |
278,000,000
SEK
|
— | — | — |
101,000,000
SEK
|
— |
| Other adjustments for non-cash items | — |
168,000,000
SEK
|
— | — | — |
71,000,000
SEK
|
— |
| Interest paid, classified as operating activities | — |
229,000,000
SEK
|
— | — | — |
118,000,000
SEK
|
— |
| Interest received, classified as operating activities | — |
0
SEK
|
— | — | — |
30,000,000
SEK
|
— |
| Income taxes paid (refund), classified as operating activities | — |
82,000,000
SEK
|
— | — | — |
6,000,000
SEK
|
— |
| Cash flows from (used in) operating activities | — |
2,290,000,000
SEK
|
— | — | — |
168,000,000
SEK
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||||
| Purchase of property, plant and equipment, classified as investing activities | — |
247,000,000
SEK
|
— | — | — |
294,000,000
SEK
|
— |
| Purchase of intangible assets, classified as investing activities | — |
281,000,000
SEK
|
— | — | — |
1,603,000,000
SEK
|
— |
| Cash flows from (used in) investing activities | — |
529,000,000
SEK
|
— | — | — |
1,891,000,000
SEK
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||||
| Payments to acquire or redeem entity's shares | — |
—
SEK
|
— | — | — |
273,000,000
SEK
|
— |
| Repayments of borrowings, classified as financing activities | — |
2,395,000,000
SEK
|
— | — | — |
840,000,000
SEK
|
— |
| Cash flows from (used in) financing activities | — |
2,506,000,000
SEK
|
— | — | — |
1,113,000,000
SEK
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
312,000,000
SEK
|
— | — | — |
2,837,000,000
SEK
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
300,000,000
SEK
|
— | — | — |
278,000,000
SEK
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
12,000,000
SEK
|
— | — | — |
3,115,000,000
SEK
|
— |
| Cash and cash equivalents |
5,041,000,000
SEK
|
— | — | — |
5,053,000,000
SEK
|
— |
8,168,000,000
SEK
|