| übrige sonstige Finanzanlagen | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| freiwillige Angabe, Buchwerte | de | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Sonstige Finanzanlagen, übrige sonstige Finanzanlagen | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Other miscellaneous long-term financial assets | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Other / miscellaneous other long-term financial assets | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Other miscellaneous long-term financial assets | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Other long-term financial assets, other miscellaneous long-term financial assets | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Other long-term financial assets, other / miscellaneous other long-term financial assets | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Other long-term financial assets, other miscellaneous long-term financial assets | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |