| Contractual service margin related to contracts that existed at transition date to which fair value approach has been applied [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for the contractual service margin related to contracts that existed at the transition date to which the fair value approach (as described in paragraphs C20-C24 of IFRS 17) has been applied. [Refer: Contractual service margin [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Avtalsenlig marginal som avser avtal som fanns per övergångsdagen på vilka verkligt värde-metoden har tillämpats [member] | sv | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Detta element står för den avtalsenliga marginal som avser avtal som fanns per övergångsdagen på vilka verkligt värde-metoden (som beskrivs i punkterna C20–C24 i IFRS 17) har tillämpats. [Se: Avtalsenlig marginal [member]] | sv | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |