| Name | bs.ass.currAss.securities.affil.subsidiaries |
|---|---|
| Namespace | http://www.xbrl.de/taxonomies/de-gaap-ci-2020-04-01 |
| Prefix | de-gaap-ci |
| Data type | xbrli:monetaryItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Anteile an Tochterunternehmen | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Anteile an verbundenen Unternehmen (Umlaufvermögen), Anteile an Tochterunternehmen | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| für individuelle Reportingzwecke | de | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Shares in affiliated companies (current assets), shares in subsidiaries | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Shares in subsidiaries | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| legalFormEU | true | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| legalFormKSt | true | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| legalFormPG | true | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |
| typeOperatingResult | neutral | http://www.xbrl.org/2003/role/mandatoryDisclosureRef |