| darunter Mindersteuern lt. Finanzverwaltung | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| 14b. Sonstige Vermögensgegenstände, Andere Sonstige Vermögensgegenstände, darunter Mindersteuern lt. Finanzverwaltung | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| of which tax reduction according to tax authority | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| 14b. Other assets, other miscellaneous assets, of which tax reduction according to tax authority | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |