| 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 |
| Contractuele dienstenmarge die verband houdt met contracten die bestonden op de overgangsdatum en waarop de reëlewaardebenadering is toegepast [member] | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Dit lid staat voor de contractuele dienstenmarge die verband houdt met contracten die bestonden op de overgangsdatum en waarop de reëlewaardebenadering (zoals beschreven in de alinea’s C20-C24 van IFRS 17) is toegepast. [Zie: contractuele dienstenmarge [member]] | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |