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

  The Venerable Large Cap Index Fund (the "Fund") seeks to replicate the performance of a benchmark index that measures the investment return of large 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. 06, 2026
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 most recent fiscal year, the Fund's portfolio turnover rate was 20% of the average value of its portfolio.

Portfolio Turnover, Rate oef_PortfolioTurnoverRate 20.00%
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 the investment return of large capitalization companies. Typically, the actual percentage is considerably higher. For purposes of the Fund's 80% policy, "large capitalization companies" are defined as issuers with a market capitalization within the range of companies in the S&P 500 Index at the time of purchase (the "Index"). The Fund uses an index-based investment approach designed to track the Index, a widely recognized benchmark of U.S. stock market performance whose constituents are generally considered large capitalization stocks.

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 stock 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 stocks 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 stock or extraordinary circumstances (such as if trading in a stock 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 to be 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 to the extent that the Index is also concentrated.

As of the date of this Prospectus, a significant portion of the Index consisted of securities of companies in the information technology sector.

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 a change in relative market capitalization or index weighting of one or more constituents of its 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 the investment return of large capitalization companies. The Fund may concentrate its investments (i.e. hold more than 25% of its total assets) in an industry to the extent that the Index is also concentrated. As of the date of this Prospectus, a significant portion of the Index consisted of securities of companies in the information technology sector.
Bar Chart and Performance Table [Heading] oef_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] oef_PerformanceNarrativeTextBlock

The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year, and by showing how the Fund's average annual returns for 1 year and since the Fund's inception compare with those of a broad measure of market performance. The performance information shown is based on full calendar years. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns shown in the bar chart and table do not include charges that will be imposed by variable insurance contracts. If these amounts were reflected, returns would be less than those shown.

Performance Information Illustrates Variability of Returns [Text] oef_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year, and by showing how the Fund's average annual returns for 1 year and since the Fund's inception compare with those of a broad measure of market performance.
Performance Past Does Not Indicate Future [Text] oef_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] oef_BarChartHeading Venerable Large Cap Index Fund – Class V
Bar Chart Does Not Reflect Sales Loads [Text] oef_BarChartDoesNotReflectSalesLoads The returns shown in the bar chart and table do not include charges that will be imposed by variable insurance contracts. If these amounts were reflected, returns would be less than those shown.
Bar Chart Closing [Text Block] oef_BarChartClosingTextBlock

Best Quarter: 10.76% 2nd quarter 2025
Worst Quarter: -4.38% 1st quarter 2025

Highest Quarterly Return, Label [Optional Text] oef_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date oef_BarChartHighestQuarterlyReturnDate Jun. 30, 2025
Highest Quarterly Return oef_BarChartHighestQuarterlyReturn 10.76%
Lowest Quarterly Return, Label [Optional Text] oef_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date oef_BarChartLowestQuarterlyReturnDate Mar. 31, 2025
Lowest Quarterly Return oef_BarChartLowestQuarterlyReturn (4.38%)
Performance Table Heading oef_PerformanceTableHeading Average Annual Total Returns (for the periods ended December 31, 2025)
Index No Deduction for Fees, Expenses, or Taxes [Text] oef_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
Performance Table Narrative oef_PerformanceTableNarrativeTextBlock

This table compares the Fund's average annual total returns to those of a broad-based securities market index.

Venerable Large Cap Index Fund | Venerable Large 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 Large Cap Index Fund | Venerable Large 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 Large Cap Index Fund | Venerable Large 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 Large Cap Index Fund | Venerable Large 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 Large Cap Index Fund | Venerable Large 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 Large Cap Index Fund | Venerable Large 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 Large Cap Index Fund | Venerable Large Cap Index Fund | Information Technology Sector Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

•  Information Technology Sector Risk. To the extent that the Fund invests significantly in the information technology sector, the Fund will be sensitive to changes in, and the Fund's performance may depend to a greater extent on, the overall condition of the information technology sector. Companies in the information technology sector can be significantly affected by short product cycles, obsolescence of existing technology, impairment or loss of intellectual property rights, falling prices and profits, competition from new market entrants, government regulation and other factors.

Venerable Large Cap Index Fund | Venerable Large 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 Large Cap Index Fund | Venerable Large 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 Large Cap Index Fund | Venerable Large 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 is 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 Large Cap Index Fund | Venerable Large Cap Index Fund | Class I  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.15%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.12%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.27%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets 0.00% [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.27% [2]
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 28
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 87
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 152
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 343
Venerable Large Cap Index Fund | Venerable Large Cap Index Fund | Class V  
Prospectus [Line Items] oef_ProspectusLineItems  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.15%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.30%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.12%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.57%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.06%) [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.51%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 52
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 177
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 312
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 708
Venerable Large Cap Index Fund | S&P 500 Index Return (reflects no deduction for fees, expenses or taxes)  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 17.88%
Average Annual Return, Percent oef_AvgAnnlRtrPct 19.19%
Venerable Large Cap Index Fund | Class I  
Prospectus [Line Items] oef_ProspectusLineItems  
Performance Inception Date oef_PerfInceptionDate Sep. 04, 2024
Venerable Large Cap Index Fund | Class V  
Prospectus [Line Items] oef_ProspectusLineItems  
Annual Return [Percent] oef_AnnlRtrPct 17.30%
Average Annual Return, Percent oef_AvgAnnlRtrPct 17.30%
Average Annual Return, Percent oef_AvgAnnlRtrPct 20.40%
Performance Inception Date oef_PerfInceptionDate Sep. 04, 2024
[1] Until September 6, 2026, 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 0.51% for Class V shares and 0.28% for Class I shares. These contractual obligations automatically renew for an additional one-year period beginning on September 6, 2026 unless terminated or modified in accordance with their terms. Termination or modification of these obligations prior to September 6, 2026 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.
[2] Differs from the ratios of expenses to average net assets in the Financial Highlights section of the Prospectus due to rounding.