| Current raw materials and current production supplies | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total current raw materials and current production supplies | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| A classification of current inventory representing the amount of current raw materials and current production supplies. [Refer: Current production supplies; Current raw materials] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Materias primas corrientes y suministros de producción corrientes | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total materias primas corrientes y suministros de producción corrientes | es | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |