| Reserve of gains and losses from investments in equity instruments [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for a component of equity representing accumulated gains and losses from investments in equity instruments that the entity has designated at fair value through other comprehensive income. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Reserve for gevinster og tab fra investeringer i egenkapitalinstrumenter [member] | da | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Dette element står for et egenkapitalelement, der repræsenterer akkumulerede gevinster og tab fra investeringer i egenkapitalinstrumenter, som virksomheden har klassificeret til dagsværdi gennem øvrig totalindkomst. | da | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |