Statement Of Financial Position [Abstract]
| Concept |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||
| Goodwill |
1 943
SEK
|
— | — | — | — | — |
1 852
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
564,000,000
SEK
|
— | — | — | — | — |
609,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current assets |
8 037
SEK
|
— | — | — | — | — |
7 714
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||
| Current tax assets, current |
118,000,000
SEK
|
— | — | — | — | — |
70,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
534,000,000
SEK
|
— | — | — | — | — |
2 561
SEK
|
— | — | — | — | — |
2 155
SEK
|
— | — | — | — | — |
| Current assets |
21 528
SEK
|
— | — | — | — | — |
21 707
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Assets |
29 565
SEK
|
— | — | — | — | — |
29 421
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital |
867,000,000
SEK
|
— | — | — | — | — |
8 67
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
4 140
SEK
|
— | — | — | — | — |
3 076
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
331,000,000
SEK
|
— | — | — | — | — |
57,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
7 183
SEK
|
— | — | — | — | — |
5 84 4
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
7 183
SEK
|
4 140
SEK
|
8 67
SEK
|
7 18 3
SEK
|
3 31
SEK
|
1 844
SEK
|
5 84 4
SEK
|
3 076
SEK
|
57,000,000
SEK
|
1 844
SEK
|
5 844
SEK
|
867,000,000
SEK
|
3 972
SEK
|
867,000,000
SEK
|
1 362
SEK
|
10 1
SEK
|
1 844
SEK
|
3 972
SEK
|
| Liabilities [abstract] | ||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||
| Non-current provisions for employee benefits | — | — | — | — | — | — |
1 997
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Other non-current provisions |
2 481
SEK
|
— | — | — | — | — |
2 608
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities |
943,000,000
SEK
|
— | — | — | — | — |
464,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
6 770
SEK
|
— | — | — | — | — |
7 154
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||
| Other current provisions |
7,000,000
SEK
|
— | — | — | — | — |
13,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current |
14,000,000
SEK
|
— | — | — | — | — |
22,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities |
15 612
SEK
|
— | — | — | — | — |
16 42 2
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
22 382
SEK
|
— | — | — | — | — |
23 577
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
29 565
SEK
|
— | — | — | — | — |
29 421
SEK
|
— | — | — | — | — | — | — | — | — | — | — |