Profit Or Loss [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||||
| Profit (loss) [abstract] | ||||||||
| Other income | — | — |
826,000,000
SEK
|
— | — |
686,000,000
SEK
|
— | — |
| Profit (loss) from operating activities | — | — |
5,803,000,000
SEK
|
— | — |
5,459,000,000
SEK
|
— | — |
| Finance income | — | — |
252,000,000
SEK
|
— | — |
272,000,000
SEK
|
— | — |
| Finance costs | — | — |
1,235,000,000
SEK
|
— | — |
1,591,000,000
SEK
|
— | — |
| Profit (loss) before tax | — | — |
4,820,000,000
SEK
|
— | — |
4,140,000,000
SEK
|
— | — |
| Tax expense (income) | — | — |
1,510,000,000
SEK
|
— | — |
1,222,000,000
SEK
|
— | — |
| Profit (loss) |
87,000,000
SEK
|
3,223,000,000
SEK
|
3,311,000,000
SEK
|
3,223,000,000
SEK
|
2,871,000,000
SEK
|
2,919,000,000
SEK
|
48,000,000
SEK
|
2,871,000,000
SEK
|
| Profit (loss), attributable to [abstract] | ||||||||
| Profit (loss), attributable to owners of parent | — | — |
3,223,000,000
SEK
|
— | — |
2,871,000,000
SEK
|
— | — |
| Profit (loss), attributable to non-controlling interests | — | — |
87,000,000
SEK
|
— | — |
48,000,000
SEK
|
— | — |
| Earnings per share [text block] | — | — | — | — | — | — | — | — |
| Earnings per share [abstract] | ||||||||
| Earnings per share [line items] | ||||||||
| Basic earnings per share [abstract] | ||||||||
| Basic earnings (loss) per share | — | — |
912.00
|
— | — |
812.00
|
— | — |