| Goodwill derecognised without having previously been included in disposal group classified as held for sale | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Goodwill derecognised without having previously been included in disposal group classified as held for sale | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The amount of goodwill derecognised without having previously been included in a disposal group classified as held for sale. [Refer: Goodwill; Disposal groups classified as held for sale [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Cáilmheas a dhí‑aithnítear nár áiríodh roimhe i ngrúpa diúscartha a aicmítear mar ghrúpa atá á shealbhú lena dhíol | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| An méid cáilmheasa a dhí‑aithnítear nár áiríodh roimhe i ngrúpa diúscartha a aicmítear mar ghrúpa atá á shealbhú lena dhíol. [Féach: Cáilmheas; Grúpaí diúscartha a aicmítear mar ghrúpaí atá á sealbhú lena ndíol [member] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Cáilmheas a dhí‑aithnítear nár áiríodh roimhe i ngrúpa diúscartha a aicmítear mar ghrúpa atá á shealbhú lena dhíol | ga | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |