| Gains (losses) on disposals of investments [abstract] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Gains (losses) on disposals of investments [abstract] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Ganancias (pérdidas) en la disposición de inversiones [resumen] | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Ganancias (pérdidas) por disposiciones de inversiones [sinopsis] | es | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Gains (losses) on disposals of investments [abstract] | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |