| Cash receipts from futures contracts, forward contracts, option contracts and swap contracts, classified as investing activities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Cash receipts from futures contracts, forward contracts, option contracts and swap contracts | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| The cash inflow from futures contracts, forward contracts, option contracts and swap contracts except when the contracts are held for dealing or trading purposes or the receipts are classified as financing activities. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Incassi derivanti da contratti future, contratti forward, contratti di opzione e contratti swap, classificati come attività di investimento | it | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| I flussi finanziari in entrata derivanti da contratti future, contratti forward, contratti di opzione e contratti swap eccetto quando i contratti sono posseduti a scopo commerciale o di negoziazione, o gli incassi rientrano nell'attività di finanziamento. | it | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |