Statement Of Cash Flows [Abstract]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
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] | |||||
| Cash flows from (used in) operating activities | — |
5,264,000,000
SEK
|
— |
7,723,000,000
SEK
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
8,000,000
SEK
|
— |
125,000,000
SEK
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
3,828,000,000
SEK
|
— |
70,000,000
SEK
|
— |
| Cash flows from (used in) investing activities | — |
5,025,000,000
SEK
|
— |
1,058,000,000
SEK
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments to acquire or redeem entity's shares | — |
1,339,000,000
SEK
|
— |
–
SEK
|
— |
| Proceeds from borrowings, classified as financing activities | — |
1,000,000,000
SEK
|
— |
2,000,000,000
SEK
|
— |
| Repayments of borrowings, classified as financing activities | — |
2,431,000,000
SEK
|
— |
4,841,000,000
SEK
|
— |
| Interest paid, classified as financing activities | — |
210,000,000
SEK
|
— |
260,000,000
SEK
|
— |
| Cash flows from (used in) financing activities | — |
2,081,000,000
SEK
|
— |
6,917,000,000
SEK
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
1,842,000,000
SEK
|
— |
252,000,000
SEK
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
48,000,000
SEK
|
— |
192,000,000
SEK
|
— |
| Cash and cash equivalents |
3,356,000,000
SEK
|
— |
5,150,000,000
SEK
|
— |
5,594,000,000
SEK
|