| Restructuring provision | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total restructuring provision | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of provision for restructuring, such as the sale or termination of a line of business; closure of business locations in a country or region or relocation of activities from one country or region to another; changes in management structure; and fundamental reorganisations that have a material effect on the nature and focus of the entity's operations. [Refer: Other provisions] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Foráil maidir le hathstruchtúrú | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Méid an tsoláthair le haghaidh athstruchtúraithe, amhail réim gnó a dhíol nó a fhoirceannadh; dúnadh suíomhanna gnó i dtír nó réigiún nó athlonnú gníomhaíochtaí ó thír nó réigiún amháin chuig tír nó réigiún eile; athruithe ar struchtúr bainistíochta; agus atheagruithe bunúsacha ag a mbíonn éifeacht ábhartha ar chineál agus fócas oibríochtaí an eintitis. [Féach: Soláthairtí eile] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Foráil iomlán maidir le hathstruchtúrú | ga | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |