Statement Of Financial Position [Abstract]
| Concept |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — |
126,000,000
SEK
|
— | — | — | — | — |
102,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — |
359,000,000
SEK
|
— | — | — | — | — |
390,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — |
1 667
SEK
|
— | — | — | — | — |
1 609
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — |
468,000,000
SEK
|
— | — | — | — | — |
425,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — |
66,000,000
SEK
|
— | — | — | — | — |
91,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — |
182,000,000
SEK
|
— | — | — | — | — |
139,000,000
SEK
|
— | — | — | — | — |
90,000,000
SEK
|
— | — | — | — |
| Assets | — | — | — | — |
5 295
SEK
|
— | — | — | — | — |
4 941
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — |
57,000,000
SEK
|
— | — | — | — | — |
57,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — |
1 813
SEK
|
— | — | — | — | — |
1 629
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — |
26,000,000
SEK
|
— | — | — | — | — |
56,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — |
1 915
SEK
|
— | — | — | — | — |
1 701
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — |
17,000,000
SEK
|
— | — | — | — | — |
14,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
71,000,000
SEK
|
1 915
SEK
|
57,000,000
SEK
|
1 813
SEK
|
1 932
SEK
|
17,000,000
SEK
|
26,000,000
SEK
|
71,000,000
SEK
|
1 629
SEK
|
56,000,000
SEK
|
1 715
SEK
|
57,000,000
SEK
|
14,000,000
SEK
|
1 701
SEK
|
12,000,000
SEK
|
1 631
SEK
|
1 643
SEK
|
22,000,000
SEK
|
71,000,000
SEK
|
57,000,000
SEK
|
1 525
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — |
102,000,000
SEK
|
— | — | — | — | — |
93,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — |
3 363
SEK
|
— | — | — | — | — |
3 226
SEK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — |
5 295
SEK
|
— | — | — | — | — |
4 941
SEK
|
— | — | — | — | — | — | — | — | — | — |