Statement Of Comprehensive Income [Abstract]
| Concept |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||
| Profit (loss) |
1, 154
SEK
|
1,154,000,000
SEK
|
— | — |
1, 157
SEK
|
3,000,000
SEK
|
— | — |
1, 253
SEK
|
1,254,000,000
SEK
|
1,000,000
SEK
|
1,254,000,000
SEK
|
| Other comprehensive income [abstract] | ||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||
| Other comprehensive income, before tax, gains (losses) from investments in equity instruments |
45,000,000
SEK
|
45,000,000
SEK
|
— | — |
45,000,000
SEK
|
— | — | — |
206,000,000
SEK
|
206,000,000
SEK
|
— |
206,000,000
SEK
|
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans |
27,000,000
SEK
|
27,000,000
SEK
|
— | — |
27,000,000
SEK
|
— | — | — |
3,000,000
SEK
|
3,000,000
SEK
|
— |
3,000,000
SEK
|
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations | — |
758,000,000
SEK
|
758,000,000
SEK
|
— |
758,000,000
SEK
|
0
SEK
|
838,000,000
SEK
|
— |
838,000,000
SEK
|
— |
0
SEK
|
838,000,000
SEK
|
| Cash flow hedges [abstract] | ||||||||||||
| Other comprehensive income, before tax, cash flow hedges | — |
448,000,000
SEK
|
— |
448,000,000
SEK
|
448,000,000
SEK
|
— | — |
231,000,000
SEK
|
231,000,000
SEK
|
— | — |
231,000,000
SEK
|
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — | — | — |
2,000,000
SEK
|
— | — | — |
43,000,000
SEK
|
— | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — |
92,000,000
SEK
|
— | — | — |
48,000,000
SEK
|
— | — | — |
| Other comprehensive income |
16,000,000
SEK
|
386,000,000
SEK
|
758,000,000
SEK
|
355,000,000
SEK
|
386,000,000
SEK
|
0
SEK
|
838,000,000
SEK
|
184,000,000
SEK
|
494,000,000
SEK
|
160,000,000
SEK
|
0
SEK
|
494,000,000
SEK
|
| Comprehensive income |
1,13 7
SEK
|
1,540,000,000
SEK
|
75 8
SEK
|
355,000,000
SEK
|
1,543,000,000
SEK
|
3,000,000
SEK
|
8 38
SEK
|
184,000,000
SEK
|
759,000,000
SEK
|
1,414,000,000
SEK
|
1,000,000
SEK
|
76 0
SEK
|
| Comprehensive income attributable to [abstract] | ||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — |
1,540,000,000
SEK
|
— | — | — |
760,000,000
SEK
|
— | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — |
3,000,000
SEK
|
— | — | — |
1,000,000
SEK
|
— | — | — |