| De aangeschafte en in eigen beheer vervaardigde materiële vaste activa per segment ten behoeve van de gesegmenteerde informatie. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Investitionen in das Sachanlagenvermögen nach Segment | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Additions to property, plant and equipment by segment | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Investissements dans des immobilisations corporelles par segment | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Investeringen in materiële vaste activa per segment | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Investitionen in das Sachanlagevermögen | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Additions to property, plant and equipment | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Investissements dans des immobilisations corporelles | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Investeringen in materiële vaste activa | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Investitionen in Finanzanlagevermögen nach Segment | de | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Additions to financial capital assets per segment | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Investissements dans des immobilisations financières par segment | fr | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Investeringen in financiële vaste activa per segment | nl | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |