| Rate-regulated activities [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Діяльність, що підлягає тарифному регулюванню [компонент] | uk | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for an entity’s activities that are subject to rate regulation. It also represents the standard value for the 'Types of rate-regulated activities' axis if no other member is used. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |