| Subsidiaries with material non-controlling interests [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for subsidiaries that have non-controlling interests that are material to the reporting entity. [Refer: Subsidiaries [member]; Non-controlling interests] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Subsidiárias com interesses que não controlam materiais [member] | pt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Este membro representa as subsidiárias com interesses que não controlam materiais para a entidade que relata. [Consultar: Subsidiárias [member]; Interesses que não controlam] | pt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |