| De andere inkomsten en uitgaven uit investeringsactiviteiten. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Sonstige Geldflüsse (aus Investitionstätigkeiten) | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Other cash flows (from investing activities) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Autres flux de trésorerie (des activités d'investissement) | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Overige kasstromen (uit investeringsactiviteiten) | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Sonstige Geldflüsse | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Other cash flows | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Autres flux de trésorerie | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Overige kasstromen | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |