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) | — |
1 044,4
SEK
|
1 044,4
SEK
|
4,745,000,000
SEK
|
— |
4,745,000,000
SEK
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||
| Other adjustments for non-cash items | — |
457,000,000
SEK
|
— | — | — |
16,000,000
SEK
|
— |
| Dividends received, classified as operating activities | — |
0
SEK
|
— | — | — |
37,000,000
SEK
|
— |
| Cash flows from (used in) operating activities | — |
3,253,000,000
SEK
|
— | — | — |
644,000,000
SEK
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||||
| Purchase of property, plant and equipment, classified as investing activities | — |
504,000,000
SEK
|
— | — | — |
62,000,000
SEK
|
— |
| Cash flows from (used in) investing activities | — |
2 515,4
SEK
|
— | — | — |
1 888,4
SEK
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||||
| Proceeds from borrowings, classified as financing activities | — |
1 909,6
SEK
|
— | — | — |
1 233,3
SEK
|
— |
| Repayments of borrowings, classified as financing activities | — |
1,332,000,000
SEK
|
— | — | — |
487,000,000
SEK
|
— |
| Cash flows from (used in) financing activities | — |
1 776,3
SEK
|
— | — | — |
1 682,9
SEK
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
4,138,000,000
SEK
|
— | — | — |
2,699,000,000
SEK
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
1,000,000
SEK
|
— | — | — |
14,000,000
SEK
|
— |
| Cash and cash equivalents |
940,000,000
SEK
|
— | — | — |
5,076,000,000
SEK
|
— |
7,790,000,000
SEK
|