Statement Of Financial Position [Abstract]
| Concept |
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 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 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — |
3 262
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3 028
SEK
|
— | — | — | — | — | — | — | — |
| Right-of-use assets | — |
3 348
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3 334
SEK
|
— | — | — | — | — | — | — | — |
| Goodwill | — |
23 373
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
21 414
SEK
|
— | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — |
1 732
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1 424
SEK
|
— | — | — | — | — | — | — | — |
| Deferred tax assets | — |
1 068
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1 080
SEK
|
— | — | — | — | — | — | — | — |
| Non-current assets | — |
36 494
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
34 054
SEK
|
— | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Current tax assets, current | — |
535,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
485,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — |
4 809
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
4 720
SEK
|
— | — | — |
3 948
SEK
|
— | — | — | — |
| Current assets | — |
26 869
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
25 073
SEK
|
— | — | — | — | — | — | — | — |
| Assets | — |
63 363
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
59 127
SEK
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — |
365,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
365,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Retained earnings | — |
14 830
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
12 758
SEK
|
— | — | — | — | — | — | — | — |
| Share premium | — |
7 363
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
7 363
SEK
|
— | — | — | — | — | — | — | — |
| Other reserves | — |
1 766
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
2 789
SEK
|
— | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — |
20 792
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
17 697
SEK
|
— | — | — | — | — | — | — | — |
| Non-controlling interests | — |
8,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
10,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Equity |
14 830
SEK
|
20 800
SEK
|
31,000,000
SEK
|
20 792
SEK
|
7 363
SEK
|
8,000,000
SEK
|
1 797
SEK
|
365,000,000
SEK
|
12 758
SEK
|
10,000,000
SEK
|
75,000,000
SEK
|
17 697
SEK
|
365,000,000
SEK
|
2 864
SEK
|
7 363
SEK
|
17 707
SEK
|
19 569
SEK
|
30,000,000
SEK
|
269,000,000
SEK
|
19 599
SEK
|
7 363
SEK
|
12 047
SEK
|
63,000,000
SEK
|
365,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||
| Other non-current provisions | — |
721,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
607,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Deferred tax liabilities | — |
661,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
674,000,000
SEK
|
— | — | — | — | — | — | — | — |
| Non-current liabilities | — |
17 328
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
16 990
SEK
|
— | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||
| Current provisions | — |
1 924
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1 501
SEK
|
— | — | — | — | — | — | — | — |
| Current tax liabilities, current | — |
1 402
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1 287
SEK
|
— | — | — | — | — | — | — | — |
| Current liabilities | — |
25 235
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
24 430
SEK
|
— | — | — | — | — | — | — | — |
| Equity and liabilities | — |
63 363
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
59 127
SEK
|
— | — | — | — | — | — | — | — |