| Regulatory deferral account balances classified as disposal groups [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for regulatory deferral account balances that are classified as disposal groups. [Refer: Disposal groups classified as held for sale [member]; Regulatory deferral account balances [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Bilanċi tal-kont ta’ differiment regolatorju kklassifikati bħala gruppi ta’ disponiment [member] | mt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Dan il-membru jirrappreżenta l-bilanċi tal-kont ta’ differiment regolatorju li huma kklassifikati bħala gruppi ta’ disponiment. [Refer: Gruppi ta’ disponiment ikklassifikati bħala miżmuma għall-bejgħ [member]; Bilanċi tal-kont ta’ differiment regolatorju [member]] | mt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |