| Decrease in reimbursement rights related to defined benefit obligation, resulting from payments in respect of settlements | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Increase (decrease) in reimbursement rights related to defined benefit obligation, resulting from payments in respect of settlements | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The decrease (increase) in reimbursement rights related to defined benefit obligation, resulting from payments in respect of settlements. [Refer: Decrease (increase) in net defined benefit liability (asset) resulting from gains (losses) arising from settlements; Defined benefit plans [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Laghdú ar chearta aisíocaíochta a bhaineann le hoibleagáid sochair shainithe, a leanann as íocaíochtaí i leith socraíochtaí | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| An laghdú (méadú) ar chearta aisíocaíochta a bhaineann le hoibleagáid sochair shainithe, a leanann as íocaíochtaí i leith socraíochtaí. [Féach: Laghdú (méadú) ar ghlandliteanas sochair shainithe (sócmhainn) a leanann as gnóthachain (caillteanais) a eascraíonn as socraíochtaí; Pleananna sochair shainithe [member]] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Méadú (laghdú) ar chearta aisíocaíochta a bhaineann le hoibleagáid sochair shainithe, a leanann as íocaíochtaí i leith socraíochtaí | ga | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |