| Current and deferred tax relating to items credited (charged) directly to equity | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Aggregate current and deferred tax relating to items credited (charged) directly to equity | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The aggregate current and deferred tax relating to particular items that are charged or credited directly to equity, for example: (a) an adjustment to the opening balance of retained earnings resulting from either a change in accounting policy that is applied retrospectively or the correction of an error; and (b) amounts arising on initial recognition of the equity component of a compound financial instrument. [Refer: Deferred tax relating to items credited (charged) directly to equity; Retained earnings; Financial instruments, class [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Impuestos corrientes y diferidos relacionados con partidas acreditadas (cargadas) directamente a patrimonio | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Impuestos corrientes y diferidos acumulados relacionados con partidas acreditadas (cargadas) directamente a patrimonio | es | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |