| Deferred tax liability associated with regulatory deferral account balances | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Відстрочене податкове зобов'язання, пов'язане із залишками рахунку відстрочених тарифних різниць | uk | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The amount of deferred tax liability associated with regulatory deferral account balances. [Refer: Deferred tax liabilities; Regulatory deferral account balances [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |