| Other regulatory deferral account credit balances | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Інші залишки за кредитом рахунку відстрочених тарифних різниць | uk | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The amount of regulatory deferral account credit balances that the entity does not separately disclose in the same statement or note. [Refer: Regulatory deferral account credit balances] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |