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) | — |
223,000,000
SEK
|
223,000,000
SEK
|
163,000,000
SEK
|
— |
163,000,000
SEK
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||
| Adjustments for decrease (increase) in inventories | — |
1,000,000
SEK
|
— | — | — |
2,000,000
SEK
|
— |
| Adjustments for depreciation and amortisation expense | — |
242,000,000
SEK
|
— | — | — |
216,000,000
SEK
|
— |
| Other adjustments for non-cash items | — |
20,000,000
SEK
|
— | — | — |
26,000,000
SEK
|
— |
| Dividends paid, classified as operating activities | — |
84,000,000
SEK
|
84,000,000
SEK
|
— | — | — | — |
| Dividends received, classified as operating activities | — |
0
SEK
|
— | — | — | — | — |
| Interest paid, classified as operating activities | — |
17,000,000
SEK
|
— | — | — |
1 6
SEK
|
— |
| Interest received, classified as operating activities | — |
0
SEK
|
— | — | — |
1,000,000
SEK
|
— |
| Other inflows (outflows) of cash, classified as operating activities | — |
4,000,000
SEK
|
— | — | — |
3,000,000
SEK
|
— |
| Cash flows from (used in) operating activities | — |
437,000,000
SEK
|
— | — | — |
57 9
SEK
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
360,000,000
SEK
|
— | — | — |
343,000,000
SEK
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
3,000,000
SEK
|
— | — | — |
2,000,000
SEK
|
— |
| Purchase of property, plant and equipment, classified as investing activities | — |
8,000,000
SEK
|
— | — | — |
8,000,000
SEK
|
— |
| Purchase of intangible assets, classified as investing activities | — |
100,000,000
SEK
|
— | — | — |
98,000,000
SEK
|
— |
| Proceeds from sales of other long-term assets, classified as investing activities | — |
4,000,000
SEK
|
— | — | — | — | — |
| Cash flows from (used in) investing activities | — |
398,000,000
SEK
|
— | — | — |
375,000,000
SEK
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||||
| Proceeds from issuing other equity instruments | — |
6,000,000
SEK
|
— | — | — | — | — |
| Payments to acquire or redeem entity's shares | — |
72,000,000
SEK
|
— | — | — | — | — |
| Proceeds from borrowings, classified as financing activities | — |
7 70
SEK
|
— | — | — |
263,000,000
SEK
|
— |
| Repayments of borrowings, classified as financing activities | — |
855,000,000
SEK
|
— | — | — | — | — |
| Payments of lease liabilities, classified as financing activities | — |
7 0
SEK
|
— | — | — |
70,000,000
SEK
|
— |
| Dividends paid, classified as financing activities | — |
84,000,000
SEK
|
— | — | — | — | — |
| Cash flows from (used in) financing activities | — |
305,000,000
SEK
|
— | — | — |
193,000,000
SEK
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
28,000,000
SEK
|
— | — | — |
47,000,000
SEK
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
266,000,000
SEK
|
— | — | — |
397,000,000
SEK
|
— |
| Cash and cash equivalents |
406,000,000
SEK
|
— | — | — |
644,000,000
SEK
|
— |
294,000,000
SEK
|