| Disclosure of information about amounts recognised in relation to regulatory deferral account balances [line items] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Información a revelar sobre importes reconocidos en relación con saldos de cuentas de diferimientos de actividades reguladas [partidas de los estados financieros] | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |