| De investeringen en aankopen die zijn geclassificeerd onder investeringsactiviteiten. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Investitionen und Akquisitionen (für Investitionsaktivitäten) | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Additions and acquisitions (classified as investing activities) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Investissements et achats (pour les activités d'investissement) | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Investeringen en aankopen (voor investeringsactiviteiten) | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Investitionen und Akquisitionen | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Additions and acquisitions | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Investissements et achats | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Investeringen en aankopen | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |