DWS Treasury Portfolio Investment Objectives and Goals - Investment Class Shares [Member] - DWS Treasury Portfolio |
Mar. 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:14pt;">DWS Treasury Portfolio</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 to provide maximum current income consistent with stability of capital. |