| 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 |
| Cobros procedentes de contratos de futuro, a término, de opciones y de permuta financiera, clasificados como actividades de inversión | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Cobros procedentes de contratos de futuro, a término, de opciones y de permuta financiera | es | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |