| Reclassification adjustments on change in value of foreign currency basis spreads, net of tax | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Reclassification adjustments on change in value of foreign currency basis spreads, net of tax | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The amount of reclassification adjustments related to change in value of foreign currency basis spreads, net of tax. Reclassification adjustments are amounts reclassified to profit (loss) in the current period that were recognised in other comprehensive income in the current or previous periods. [Refer: Other comprehensive income] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Ajustes de reclasificación por cambios en el valor de los diferenciales de la tasa de cambio de la moneda extranjera, netos de impuestos | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Ajustes de reclasificación por cambios en el valor de los diferenciales de la tasa de cambio de la moneda extranjera, netos de impuestos | es | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |