| Property, plant and equipment subject to operating leases [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for property, plant and equipment that is subject to operating leases. Operating lease is a lease that does not transfer substantially all the risks and rewards incidental to ownership of an underlying asset. [Refer: Property, plant and equipment] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Inmovilizado material objeto de arrendamiento operativo [miembro] | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Este miembro se refiere al inmovilizado material que es objeto de arrendamiento operativo. Un arrendamiento operativo es un tipo de arrendamiento en el que no se transfieren sustancialmente todos los riesgos y beneficios inherentes a la propiedad de un activo subyacente. [Referencia: Inmovilizado material] | es | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |