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 |
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) | — |
2 358
SEK
|
2 358
SEK
|
2 358
SEK
|
1 409
SEK
|
— |
1 409
SEK
|
1 409
SEK
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||
| Other adjustments for non-cash items | — | — |
471,000,000
SEK
|
— | — | — |
451,000,000
SEK
|
— | — |
| Income taxes paid (refund), classified as operating activities | — | — |
579,000,000
SEK
|
— | — | — |
385,000,000
SEK
|
— | — |
| Cash flows from (used in) operating activities | — | — |
2 406
SEK
|
— | — | — |
2 376
SEK
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — |
0
SEK
|
— | — | — |
0
SEK
|
— | — |
| Purchase of property, plant and equipment, classified as investing activities | — | — |
293,000,000
SEK
|
— | — | — |
239,000,000
SEK
|
— | — |
| Purchase of intangible assets, classified as investing activities | — | — |
11,000,000
SEK
|
— | — | — |
14,000,000
SEK
|
— | — |
| Cash flows from (used in) investing activities | — | — |
862,000,000
SEK
|
— | — | — |
665,000,000
SEK
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||
| Proceeds from borrowings, classified as financing activities | — | — |
1 953
SEK
|
— | — | — |
2 016
SEK
|
— | — |
| Repayments of borrowings, classified as financing activities | — | — |
2 435
SEK
|
— | — | — |
3 125
SEK
|
— | — |
| Payments of lease liabilities, classified as financing activities | — | — |
92,000,000
SEK
|
— | — | — |
98,000,000
SEK
|
— | — |
| Cash flows from (used in) financing activities | — | — |
1 366
SEK
|
— | — | — |
1 978
SEK
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — |
178,000,000
SEK
|
— | — | — |
267,000,000
SEK
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — |
58,000,000
SEK
|
— | — | — |
157,000,000
SEK
|
— | — |
| Cash and cash equivalents |
1 320
SEK
|
— | — | — | — |
1 200
SEK
|
— | — |
1 624
SEK
|