| Decrease through transfer to liabilities included in disposal groups classified as held for sale, other provisions | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Decrease through transfer to liabilities included in disposal groups classified as held for sale, other provisions | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The decrease in other provisions resulting from the transfer of those provisions to liabilities included in disposal groups classified as held for sale. [Refer: Other provisions; Disposal groups classified as held for sale [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Diminuzione per trasferimento nelle passività incluse nei gruppi in dismissione classificati come posseduti per la vendita, altri accantonamenti | it | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| La diminuzione degli altri accantonamenti dovuta al loro trasferimento nelle passività incluse nei gruppi in dismissione classificati come posseduti per la vendita. [Rif: Altri accantonamenti; Gruppi in dismissione classificati come posseduti per la vendita [member]] | it | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |