| Write-downs (reversals of write-downs) of property, plant and equipment | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Net write-downs (reversals of write-downs) of property, plant and equipment | en | http://www.xbrl.org/2009/role/netLabel | http://www.xbrl.org/2003/role/link |
| A positive or negative XBRL value can be entered for this element. Refer to the standard element label to determine the correct sign. Use a negative value for terms in brackets. | en | http://www.xbrl.org/2003/role/commentaryGuidance | http://www.xbrl.org/2003/role/link |
| The amount recognised resulting from the write-down of property, plant and equipment to its recoverable amount or reversals of those write-downs. [Refer: Property, plant and equipment] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Svalutazioni (storni di svalutazioni) di immobili, impianti e macchinari | it | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| L'ammontare contabilizzato per la svalutazione di immobili, impianti e macchinari al valore recuperabile o lo storno di tali svalutazioni e il conseguente ripristino di valore. [Rif: Immobili, impianti e macchinari] | it | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |