| Losses on disposals of property, plant and equipment | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Losses on disposals of property, plant and equipment | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Losses on disposals of property, plant and equipment | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| Losses on disposals of property, plant and equipment | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The losses on the disposal of property, plant and equipment. [Refer: Property, plant and equipment] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Pérdidas por la disposición de propiedades, planta y equipo | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Pérdidas por la disposición de propiedades, planta y equipo | es | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| Pérdidas por disposiciones de propiedades, planta y equipo | es | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Losses on disposals of property, plant and equipment | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |