Analysis Of Income And Expense [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 |
|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||
| Material income and expense [abstract] | ||||||||
| Selling, general and administrative expense [abstract] | ||||||||
| General and administrative expense | — | — |
57,000,000
SEK
|
— | — |
53,000,000
SEK
|
— | — |
| Gains (losses) on change in fair value of derivatives [abstract] | ||||||||
| Gains (losses) on change in fair value of derivatives | — | — |
64,000,000
SEK
|
— | — |
38,000,000
SEK
|
— | — |
| Expenses by nature [abstract] | ||||||||
| Tax expense other than income tax expense | — | — | — | — | — | — | — | — |
| Property tax expense | — | — |
39,000,000
SEK
|
— | — |
38,000,000
SEK
|
— | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — |
158,000,000
SEK
|
— | — |
60,000,000
SEK
|
— | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income |
4,000,000
SEK
|
2 017
SEK
|
2 020
SEK
|
2 017
SEK
|
659,000,000
SEK
|
660,000,000
SEK
|
1,000,000
SEK
|
659,000,000
SEK
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income, attributable to owners of parent | — | — |
2 017
SEK
|
— | — |
659,000,000
SEK
|
— | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income, attributable to non-controlling interests | — | — |
36,000,000
SEK
|
— | — |
15,000,000
SEK
|
— | — |