Statement Of Financial Position [Abstract]
| Concept |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — |
158,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
157,000,000
SEK
|
— | — | — | — | — | — | — |
| Right-of-use assets | — | — |
430,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
442,000,000
SEK
|
— | — | — | — | — | — | — |
| Goodwill | — | — |
1 924
SEK
|
— | — | — | — | — | — | — | — | — | — |
2 018
SEK
|
— | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — |
917,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
781,000,000
SEK
|
— | — | — | — | — | — | — |
| Deferred tax assets | — | — |
58,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
59,000,000
SEK
|
— | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
348,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
296,000,000
SEK
|
— | — |
220,000,000
SEK
|
— | — | — | — |
| Assets | — | — |
6 137
SEK
|
— | — | — | — | — | — | — | — | — | — |
6 062
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — |
57,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
57,000,000
SEK
|
— | — | — | — | — | — | — |
| Retained earnings | — | — |
1 797
SEK
|
— | — | — | — | — | — | — | — | — | — |
1 930
SEK
|
— | — | — | — | — | — | — |
| Other reserves | — | — |
54,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
50,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — |
1 871
SEK
|
— | — | — | — | — | — | — | — | — | — |
2 108
SEK
|
— | — | — | — | — | — | — |
| Non-controlling interests | — | — |
107,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
105,000,000
SEK
|
— | — | — | — | — | — | — |
| Equity |
54,000,000
SEK
|
71,000,000
SEK
|
1 978
SEK
|
107,000,000
SEK
|
57,000,000
SEK
|
1 797
SEK
|
1 871
SEK
|
50,000,000
SEK
|
2 108
SEK
|
71,000,000
SEK
|
1 930
SEK
|
105,000,000
SEK
|
57,000,000
SEK
|
2 213
SEK
|
2 181
SEK
|
71,000,000
SEK
|
2 240
SEK
|
57,000,000
SEK
|
59,000,000
SEK
|
2 031
SEK
|
22,000,000
SEK
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — |
1 97
SEK
|
— | — | — | — | — | — | — | — | — | — |
163,000,000
SEK
|
— | — | — | — | — | — | — |
| Liabilities | — | — |
4 159
SEK
|
— | — | — | — | — | — | — | — | — | — |
3 849
SEK
|
— | — | — | — | — | — | — |
| Equity and liabilities | — | — |
6 137
SEK
|
— | — | — | — | — | — | — | — | — | — |
6 062
SEK
|
— | — | — | — | — | — | — |