| Reserve of gains and losses on financial assets measured at fair value through other comprehensive income [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 the accumulated gains and losses on financial assets measured at fair value through other comprehensive income. [Refer: Financial assets measured at fair value through other comprehensive income; Other comprehensive income] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Reserva dos ganhos e perdas dos ativos financeiros mensurados pelo justo valor através de outro rendimento integral [member] | pt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Este membro representa uma componente do capital próprio que representa os ganhos e perdas acumulados dos ativos financeiros mensurados pelo justo valor através de outro rendimento integral. [Consultar: Ativos financeiros mensurados pelo justo valor através de outro rendimento integral; Outro rendimento integral] | pt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |