| Decrease through impairment losses, assets for insurance acquisition cash flows | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Decrease through impairment losses, assets for insurance acquisition cash flows | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The decrease in assets for insurance acquisition cash flows resulting from impairment losses recognised in the period. [Refer: Insurance contracts [member]; Assets for insurance acquisition cash flows] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Laghdú trí chaillteanais lagaithe, sócmhainní le haghaidh sreafaí airgid éadála árachais | ga | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| An laghdú ar shócmhainní le haghaidh sreafaí airgid éadála árachais a leanann as caillteanais lagaithe a aithnítear sa tréimhse. [Féach: Conarthaí árachais [member]; Sócmhainní le haghaidh sreafaí airgid éadála árachais] | ga | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Laghdú trí chaillteanais lagaithe, sócmhainní le haghaidh sreafaí airgid éadála árachais | ga | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |