| Portion of gains (losses) recognised when control of subsidiary is lost, attributable to derecognising regulatory deferral account balances in former subsidiary | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The portion of gains (losses) from losing control of a subsidiary that is attributable to derecognising regulatory deferral account balances in the former subsidiary. [Refer: Gains (losses) recognised when control of subsidiary is lost; Regulatory deferral account balances [member]; Subsidiaries [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| An sciar gnóthachan (caillteanas) a aithnítear de bharr rialú fochuideachta a chailleadh, is inchurtha nuair a dhí‑aithnítear iarmhéideanna cuntais iarchurtha rialála in iar‑fhochuideachta | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| An sciar gnóthachan (caillteanas) de bharr rialú fochuideachta a chailleadh atá inchurtha i leith iarmhéideanna cuntais iarchurtha rialála a dhí‑aithint san iar‑fhochuideachta. [Féach: Gnóthachain (caillteanais) arna n‑aithint i gcás caillteanas i rialú fochuideachta; Iarmhéideanna cuntais iarchurtha rialála [member]; Fochuideachtaí [member]] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |