v3.26.1
DWS RREEF Completion Fund I Investment Objectives and Goals - DWS RREEF Completion Fund I
Jul. 27, 2026
Prospectus [Line Items]  
Risk/Return [Heading] <span style="color:#000000;font-family:Arial;font-size:14pt;">DWS RREEF Completion Fund I</span>
Objective [Heading] <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">Investment Objective</span>
Objective, Primary [Text Block] The fund seeks total return.