| Gains (losses) recognised in other comprehensive income, fair value measurement, liabilities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Losses (gains) recognised in other comprehensive income, fair value measurement, liabilities | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The gains (losses) recognised in other comprehensive income on the fair value measurement of liabilities. [Refer: At fair value [member]; Other comprehensive income] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Ganancias (pérdidas) reconocidas en otro resultado integral, medición del valor razonable, pasivos | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Pérdidas (ganancias) reconocidas en otro resultado integral, medición del valor razonable, pasivos | es | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |