| Current tax expense (income) and adjustments for current tax of prior periods | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total current tax expense (income) and adjustments for current tax of prior periods | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of current tax expense (income) and adjustments for the current tax of prior periods. [Refer: Current tax expense (income); Adjustments for current tax of prior periods] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Oneri (proventi) fiscali correnti e rettifiche per imposte correnti relative a esercizi precedenti | it | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| L'ammontare degli oneri (proventi) fiscali correnti e delle rettifiche per le imposte correnti relative a esercizi precedenti. [Rif: Oneri (proventi) fiscali correnti; Rettifiche per imposte correnti relative a esercizi precedenti] | it | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Totale oneri (proventi) fiscali correnti e rettifiche per imposte correnti relative a esercizi precedenti | it | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |