Statement Of Cash Flows [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||
| Cash flows from (used in) operating activities | — |
10 465
SEK
|
— | — |
13 177
SEK
|
— | — | — | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
34,000,000
SEK
|
— | — |
423,000,000
SEK
|
— | — | — | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
15 184
SEK
|
— | — |
23 578
SEK
|
— | — | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
739,000,000
SEK
|
— | — |
578,000,000
SEK
|
— | — | — | — |
| Purchase of property, plant and equipment, classified as investing activities | — |
3 564
SEK
|
— | — |
2 936
SEK
|
— | — | — | — |
| Proceeds from sales of intangible assets, classified as investing activities | — |
6,000,000
SEK
|
— | — |
13,000,000
SEK
|
— | — | — | — |
| Purchase of intangible assets, classified as investing activities | — |
966,000,000
SEK
|
— | — |
642,000,000
SEK
|
— | — | — | — |
| Other inflows (outflows) of cash, classified as investing activities | — |
801,000,000
SEK
|
— | — |
190,000,000
SEK
|
— | — | — | — |
| Cash flows from (used in) investing activities | — |
20 304
SEK
|
— | — |
26 191
SEK
|
— | — | — | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||
| Payments to acquire or redeem entity's shares | — |
270,000,000
SEK
|
— | — |
–
SEK
|
— | — | — | — |
| Proceeds from borrowings, classified as financing activities | — |
32 507
SEK
|
— | — |
21 312
SEK
|
— | — | — | — |
| Repayments of borrowings, classified as financing activities | — |
17 658
SEK
|
— | — |
9 660
SEK
|
— | — | — | — |
| Payments of lease liabilities, classified as financing activities | — |
1 214
SEK
|
— | — |
1 025
SEK
|
— | — | — | — |
| Cash flows from (used in) financing activities | — |
6 222
SEK
|
— | — |
2 486
SEK
|
— | — | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
3 617
SEK
|
1 884
SEK
|
— |
10 527
SEK
|
— | — |
10 891
SEK
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
521,000,000
SEK
|
— | — |
360,000,000
SEK
|
— | — | — | — |
| Cash and cash equivalents |
10 489
SEK
|
— | — |
10 489
SEK
|
— |
13 585
SEK
|
13 585
SEK
|
— |
23 752
SEK
|