DWS Alternative Asset Allocation VIP Fees and Expenses - Class B [Member] - DWS Alternative Asset Allocation VIP |
Apr. 24, 2026 |
|---|---|
| Prospectus [Line Items] | |
| Expense Heading [Optional Text] | <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">Fees and Expenses</span> |
| Expense Narrative [Text Block] | This table describes the fees and expenses you may pay if you buy and hold shares of the fund. This information does not reflect fees associated with the separate account that invests in the fund or any variable life insurance policy or variable annuity contract for which the fund is an investment option. These fees will increase expenses. |
| Expenses Other Expenses Had Extraordinary Expenses Been Included [Text] | <span style="font-family:Arial;font-size:8pt;">“Other expenses” are restated to exclude fees related to proxy expenses. “Other expenses” would have been 0.27% had proxy expenses been included.</span> |
| Shareholder Fees Caption [Optional Text] | SHAREHOLDER FEES (paid directly from your investment) |
| Operating Expenses Caption [Optional Text] | <span style="color:#000000;font-family:Arial;font-size:10pt;text-transform:uppercase;">ANNUAL FUND OPERATING EXPENSES </span> <br/><span style="color:#000000;font-family:Arial;font-size:8pt;">(expenses that you pay each year as a % of the value of your investment)</span> |
| Expense Example [Heading] | <span style="color:#000000;font-family:Arial;font-size:10pt;text-transform:uppercase;">EXAMPLE</span> |
| Expense Example Narrative [Text Block] | This Example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. This example does not reflect any fees or sales charges imposed by a variable contract for which the fund is an investment option. If they were included, your costs would be higher.Although your actual costs may be higher or lower, based on these assumptions your costs would be: |
| Portfolio Turnover [Heading] | <span style="color:#000000;font-family:Arial;font-size:10pt;text-transform:uppercase;">PORTFOLIO TURNOVER</span> |
| Portfolio Turnover [Text Block] | The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs. These costs are not reflected in annual fund operating expenses or in the expense example, and can affect the fund's performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 18% of the average value of its portfolio. |
| Portfolio Turnover, Rate | 18.00% |