| Name | cfsDRS21.cashEqu.cashChanges.cfFromOperatingDirect |
|---|---|
| Namespace | http://www.xbrl.de/taxonomies/de-gaap-ci-2020-04-01 |
| Prefix | de-gaap-ci |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Cashflow aus der laufenden Geschäftstätigkeit (bei direkter Ermittlung) DRS 21 | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Cashflow aus der laufenden Geschäftstätigkeit | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Cash flows from operating activities (direct method) GAS 21 | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Cash flows from operating activities | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Name | DRS 21 | http://www.xbrl.org/2003/role/reference |
| Paragraph | 38 | http://www.xbrl.org/2003/role/reference |
| Clause | a | http://www.xbrl.org/2003/role/reference |
| Name | DRS 21 | http://www.xbrl.org/2003/role/reference |
| Paragraph | 39 | http://www.xbrl.org/2003/role/reference |
| Number | 8 | http://www.xbrl.org/2003/role/reference |
| ValidSince | 2015-01-01 | http://www.xbrl.org/2003/role/reference |