Statement Of Financial Position [Abstract]
| Concept |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — |
954,000,000
SEK
|
— | — |
897,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — |
975,000,000
SEK
|
— | — |
953,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — |
616,000,000
SEK
|
— | — |
436,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — |
13 423
SEK
|
— | — |
11 597
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Current tax assets, current | — | — | — | — | — |
219,000,000
SEK
|
— | — |
165,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
3 077
SEK
|
— | — |
4 411
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
6 407
SEK
|
— |
| Current assets | — | — | — | — | — |
12 880
SEK
|
— | — |
13 247
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — |
26 303
SEK
|
— | — |
24 844
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — | — | — | — | — |
192,000,000
SEK
|
— | — |
192,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — |
6 883
SEK
|
— | — |
6 568
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — |
1 025
SEK
|
— | — |
623,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — |
8 913
SEK
|
— | — |
8 197
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — |
3,000,000
SEK
|
— | — |
0
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
6 883
SEK
|
1 227
SEK
|
8 913
SEK
|
3,000,000
SEK
|
192,000,000
SEK
|
8 916
SEK
|
201,000,000
SEK
|
812,000,000
SEK
|
8 197
SEK
|
469,000,000
SEK
|
154,000,000
SEK
|
6 568
SEK
|
0
SEK
|
8 197
SEK
|
192,000,000
SEK
|
812,000,000
SEK
|
1 307
SEK
|
192,000,000
SEK
|
29,000,000
SEK
|
5 830
SEK
|
8 113
SEK
|
1,000,000
SEK
|
8 113
SEK
|
812,000,000
SEK
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||
| Non-current provisions | — | — | — | — | — |
215,000,000
SEK
|
— | — |
224,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — |
549,000,000
SEK
|
— | — |
515,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — |
5 824
SEK
|
— | — |
4 707
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||
| Current provisions | — | — | — | — | — |
1 49
SEK
|
— | — |
1 74
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — |
11 564
SEK
|
— | — |
11 941
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — |
26 303
SEK
|
— | — |
24 844
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |