| Accumulated other comprehensive income | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total accumulated other comprehensive income | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of accumulated items of income and expense (including reclassification adjustments) that are not recognised in profit or loss as required or permitted by other IFRSs. [Refer: IFRSs [member]; Other comprehensive income] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Ackumulerat övrigt totalresultat | sv | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Beloppet för ackumulerade intäkts- och kostnadsposter (inklusive omklassificeringsjusteringar) som inte redovisas i resultatet enligt vad som krävs eller tillåts enligt andra IFRS-standarder. [Se: IFRS-standarder [member]; Övrigt totalresultat] | sv | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Totalt ackumulerat övrigt totalresultat | sv | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |