| Nachrangige Verbindlichkeiten (langfristig) | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Non-current subordinated liabilities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Passif subordonné (non-courant) | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Langlopende achtergestelde schulden | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Nachrangige Verbindlichkeiten | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Subordinated liabilities | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Passif subordonné | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Achtergestelde schulden | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |