| Net movement in regulatory deferral account balances related to profit or loss directly associated with discontinued operation | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The amount of the net movement in regulatory deferral account balances related to profit or loss that are directly associated with a discontinued operation. [Refer: Net movement in regulatory deferral account balances related to profit or loss; Discontinued operations [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Glanghluaiseacht in iarmhéideanna cuntais iarchurtha rialála a bhaineann le brabús nó caillteanas a ghabhann go díreach le hoibríocht scortha | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Méid na glanghluaiseachta in iarmhéideanna cuntais iarchurtha rialála a bhaineann le brabús nó caillteanas a ghabhann go díreach le hoibríocht scortha. [Féach: Glanghluaiseacht in iarmhéideanna cuntais iarchurtha rialála a bhaineann le brabús nó caillteanas; Oibríochtaí scortha [member]] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |