v3.26.1
Label Element Value
Venerable Small Cap Index Fund | Venerable Small Cap Index Fund  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk/Return [Heading] oef_RiskReturnHeading Venerable Small Cap Index Fund
Objective [Heading] oef_ObjectiveHeading Investment Objective:
Objective, Primary [Text Block] oef_ObjectivePrimaryTextBlock

  The Venerable Small Cap Index Fund (the "Fund") seeks to replicate the performance of a benchmark index that measures the investment return of small capitalization stocks as closely as possible before the deduction of Fund expenses.

Expense Heading [Optional Text] oef_ExpenseHeading Fund Fees and Expenses
Expense Narrative [Text Block] oef_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees and expenses such as fees and expenses imposed under your variable annuity contracts or variable life insurance policies ("Variable Contract"), which are not reflected in the tables and examples below. If these fees or expenses were included in the table, the Fund's expenses would be higher. For more information on these charges, please refer to the documents governing your Variable Contract.

Operating Expenses Caption [Optional Text] oef_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination Sep. 12, 2027
Other Expenses, New Fund, Based on Estimates [Text] oef_OtherExpensesNewFundBasedOnEstimates Based on estimated amounts for the current fiscal year.
Expense Example [Heading] oef_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] oef_ExpenseExampleNarrativeTextBlock

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 does not reflect expenses and charges which are, or may be, imposed under your Variable Contract. If the example were to reflect the deduction of such charges, the costs shown would be greater. 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. The example reflects the Fund's contractual fee waivers and reimbursement obligations only for the term of the fee waivers and reimbursement obligations. Although your actual costs and returns might be higher or lower, based on these assumptions your costs would be:

Portfolio Turnover [Heading] oef_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] oef_PortfolioTurnoverTextBlock

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, which are not reflected in the annual fund operating expenses or in the example above, affect the Fund's performance. During the period September 12, 2025 through December 31, 2025, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

Portfolio Turnover, Rate oef_PortfolioTurnoverRate 7.00%
Strategy [Heading] oef_StrategyHeading Principal Investment Strategy
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock

The Fund invests, under normal circumstances, at least 80% of its net assets (plus borrowings for investment purposes) in companies that are included in a benchmark index that measures investment return of small capitalization stocks. Typically, the actual percentage is considerably higher.

The Fund uses an index-based investment approach designed to track the Russell 2000 Index (the "Index"), a widely recognized benchmark of U.S. stock market performance whose constituents are generally considered small capitalization stocks.

Venerable Investment Advisers, LLC (the "Adviser") has engaged Russell Investment Management, LLC ("RIM") to provide the day-to-day management of the Fund's portfolio pursuant to investment guidelines provided by the Adviser.

The Fund generally seeks to replicate the performance of the Index by giving approximately the same weight to a given security as the Index does. However, under extraordinary circumstances, the Fund may at times hold securities not included in the Index or may not hold securities in the same proportions as the Index (for example, as a result of corporate actions with respect to securities included in the Index (such as mergers and spin-offs), legal restrictions that apply to the Fund but not to the Index (such as diversification requirements), or liquidity considerations with respect to a security or extraordinary circumstances (such as if trading in a security has been halted). The Fund may sell securities that are represented in the Index in anticipation of their removal from the Index or buy securities that are not yet represented in the Index in anticipation of their addition to the Index.

The Fund pursues a strategy of being fully invested by exposing its cash to the performance of the Index by purchasing index futures contracts, which are derivatives.

The Fund may concentrate its investments (i.e., hold more than 25% of its total assets) in an industry or group of industries to the extent that the Index is so concentrated.

The Fund is classified as a diversified investment company as defined in the Investment Company Act of 1940, as amended (the "1940 Act"). However, the Fund may become non-diversified under the 1940 Act without the approval of shareholders solely as a result of change in relative market capitalization or index weighting of one or more constituents of the Index. A non-diversified fund generally invests a greater portion of its assets in a limited number of issuers relative to a diversified fund. The Fund may be non-diversified for an indefinite period.

Strategy Portfolio Concentration [Text] oef_StrategyPortfolioConcentration The Fund invests, under normal circumstances, at least 80% of its net assets (plus borrowings for investment purposes) in companies that are included in a benchmark index that measures investment return of small capitalization stocks. The Fund may concentrate its investments (i.e., hold more than 25% of its total assets) in an industry or group of industries to the extent that the Index is so concentrated.
Bar Chart and Performance Table [Heading] oef_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] oef_PerformanceNarrativeTextBlock

Performance information is not provided because the Fund did not complete one full calendar year of operations as of the date of this Prospectus. Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by comparing the Fund's return to a broad measure of market performance.

Performance Information Illustrates Variability of Returns [Text] oef_PerformanceInformationIllustratesVariabilityOfReturns Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by comparing the Fund's return to a broad measure of market performance.
Performance One Year or Less [Text] oef_PerformanceOneYearOrLess Performance information is not provided because the Fund did not complete one full calendar year of operations as of the date of this Prospectus.
Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Risk Lose Money [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock As with all mutual funds, an investor is subject to the risk that his or her investment could lose money.
Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Risk Not Insured [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Equity Securities Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

•  Equity Securities Risk. The value of equity securities will rise and fall in response to the activities of the company that issued them, general market conditions and/or economic conditions.

Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Small Capitalization Companies Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

•  Small Capitalization Companies Risk. Small-cap companies carry additional risks because the operating histories of these companies tend to be more limited, their earnings and revenues less predictable (and some companies may be experiencing significant losses), and their share prices more volatile than those of larger, more established companies. The shares of smaller companies tend to trade less frequently than those of larger, more established companies, which can adversely affect the pricing of these securities and the Fund's ability to purchase or sell these securities.

Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Financial Markets Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

•  Financial Markets Risk. Global economies and financial markets are increasingly interconnected and conditions (including volatility and instability) and events (including natural disasters, pandemics and epidemics) in one country, region or financial market may adversely impact issuers in a different country, region or financial market. In addition, governmental and quasi-governmental organizations have taken a number of unprecedented actions designed to support the markets. Such events and conditions may adversely affect the value of the Fund's securities, result in greater market or liquidity risk or cause difficulty valuing the Fund's portfolio instruments or achieving the Fund's objective.

Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Derivatives Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

•  Derivatives Risk. Investments in a derivative instrument could lose more than the initial amount invested. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and thus the Fund's losses may be greater if it invests in derivatives than if it invests only in conventional securities. The use of derivative instruments involves risks different

from, and possibly greater than, the risks associated with investing directly in equity or fixed income securities, currencies, or other instruments. Derivatives are generally subject to a number of risks such as leveraging risk, liquidity risk (the risk that the investment cannot be sold quickly), market risk, credit risk, default risk, counterparty risk (the risk that the other party in an agreement will fail to perform its obligations), management risk, operational risk, and legal risk. Certain of these risks do not apply to derivative instruments entered into for hedging or cash equitization, certain cleared derivative instruments, and written options contracts. Derivatives also involve the risk of mispricing or improper valuation and the risk that changes in the value of the derivative instrument may not correlate exactly with the change in the value of the underlying asset, rate, or index.

Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Index-Based Investing Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

•  Index-Based Investing Risk. The Fund uses an index replication strategy to seek to purchase the securities in an index (the "reference index") in order to track the reference index's performance. The Fund will generally hold constituent securities of the reference index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of the performance of individual securities or market conditions could cause the Fund's return to be lower than if the Fund employed a fundamental investment approach to security selection. Additionally, index-based strategies are subject to "tracking error" risk, which is the risk that the performance of the Fund will differ from the performance of the reference index it seeks to track due to differences in security holdings, operating expenses, transaction costs, cash flows and operational inefficiencies.

Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Industry Concentration Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

•  Industry Concentration Risk. To the extent the Index (and, therefore, the Fund) concentrates its investments in one or more industries, the Fund will carry much greater risk of adverse developments in those industries than a fund that invests in a wide variety of industries.

Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Non Diversification Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

•  Non-Diversification Risk. To the extent the Fund becomes non-diversified, the Fund may invest a relatively high percentage of its assets in a limited number of issuers. Therefore, when the Fund is non-diversified, the Fund's performance may be more vulnerable to changes in the market value of a single issuer or group of issuers and more susceptible to risks associated with a single economic, political, or regulatory occurrence than when the Fund's invested assets are diversified.

Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Impact of Large Redemptions (Including Possible Fund Liquidation) Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

•  Impact of Large Redemptions (Including Possible Fund Liquidation) Risk. The Fund may be used as an investment by certain funds of funds and may have a large percentage of its shares owned by such funds. Large redemption activity could result in the Fund incurring additional costs and being forced to sell portfolio securities at a loss to meet redemptions. Large redemptions may also result in increased expense ratios, higher levels of realized capital gains or losses with respect to the Fund's portfolio securities, higher Fund cash levels, higher brokerage commissions and other transaction costs, among other negative consequences such as reduced liquidity in the Fund's portfolio. As a result, large redemption activity could adversely affect the Fund's ability to conduct its investment program which, in turn, could adversely impact the Fund's performance or may result in the Fund no longer remaining at an economically viable size, in which case the Fund may cease operations.

Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Class I  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.31%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.20% [1]
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.51%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.06%) [2]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.45%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 46
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 $ 151
Venerable Small Cap Index Fund | Venerable Small Cap Index Fund | Class V  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.31%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.30%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.20% [1]
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.81%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.13%) [2]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.68%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 69
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 $ 232
[1] Based on estimated amounts for the current fiscal year.
[2] Until September 12, 2027, Venerable Investment Advisers, LLC (the "Adviser"), the distributor, and certain financial intermediaries have contractually agreed to waive all or a portion of fees (including management fee, administrative services fee, and/or distribution and/or service fee (12b-1 Fee), as applicable) and/or reimburse other operating expenses to the extent necessary to limit total annual operating expenses (excluding interest expenses, short sale expenses, taxes, brokerage commissions, and extraordinary expenses such as litigation expenses) to 0.68% for Class V shares and 0.45% for Class I shares. Termination or modification of these obligations prior to September 12, 2027, requires approval by the Fund's Board of Trustees (the "Board"). To the extent these obligations terminate or are modified, the Fund's total annual operating expenses may increase.