| 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 |
| Materja prima kurrenti u provvisti tal-produzzjoni kurrenti | mt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Klassifikazzjoni ta’ inventarju kurrenti li jirrappreżenta l-ammont ta’ materja prima kurrenti u ta’ provvisti tal-produzzjoni kurrenti. [Refer: Provvisti tal-produzzjoni kurrenti; Materja prima kurrenti] | mt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Materja prima kurrenti u provvisti tal-produzzjoni kurrenti totali | mt | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |