| Onerous contracts provision | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total onerous contracts provision | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of provision for onerous contracts. An onerous contract is a contract in which the unavoidable costs of meeting the obligation under the contract exceed the economic benefits expected to be received under it. [Refer: Other provisions] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Foráil maidir le conarthaí dochraideacha | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Méid na forála le haghaidh conarthaí dochraideacha. Is éard is conradh dochraideach ann conradh inar mó na costais dhosheachanta chun an oibleagáid faoin gconradh a chomhlíonadh ná na tairbhí eacnamaíocha a bhfuil coinne leo faoin gconradh. [Féach: Soláthairtí eile] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Foráil maidir le hiomlán na gconarthaí dochraideacha | ga | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |