| Konzernabschluss/konsolidierter Jahresabschluss | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Consolidated financial statements | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Comptes annuels consolidés | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Geconsolideerde jaarrekening | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Consolidated financial statements | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Geconsolideerde jaarrekening | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |