Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Prudential Investment Portfolios 9
Prospectus Date	rr_ProspectusDate	Dec. 30, 2022
PGIM Quant Solutions Large-Cap Core Fund
Risk Return Abstract	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<span style="color:#545454;font-family:Arial;font-size:13.58pt;">FUND SUMMARY</span>
Objective [Heading]	rr_ObjectiveHeading	<span style="color:#000000;font-family:Arial;font-size:9.70pt;font-weight:bold;text-transform:uppercase;">INVESTMENT OBJECTIVE</span>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Fund is long-term growth of capital.
Expense [Heading]	rr_ExpenseHeading	<span style="color:#000000;font-family:Arial;font-size:9.70pt;font-weight:bold;text-transform:uppercase;">FUND FEES AND EXPENSES</span>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	The tables below describe the sales charges, fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may be required to pay commissions to a broker for transactions in Class Z shares, which are not reflected in the table or the example below. You may qualify for sales charge discounts if you and an eligible group of related investors purchase, or agree to purchase in the future, $25,000 or more in shares of the Fund or other funds in the PGIM Funds family. More information about these discounts as well as other waivers or discounts is available from your financial professional and is explained in Reducing or Waiving Class A's and Class C’s Sales Charges on page 28 of the Fund's Prospectus, Appendix A: Waivers and Discounts Available From Certain Financial Intermediaries on page 48 of the Fund's Prospectus and in Rights of Accumulation on page 49 of the Fund's Statement of Additional Information (“SAI”).
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<span style="color:#000000;font-family:Arial;font-size:7.76pt;font-weight:bold;margin-left:3pt;">Shareholder Fees (fees paid directly from your investment)</span>
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<span style="color:#000000;font-family:Arial;font-size:7.76pt;font-weight:bold;margin-left:3pt;">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</span>
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	<span style="font-family:Arial;font-size:7.76pt;">February </span><span style="font-family:Arial;font-size:7.76pt;">29, 2024</span>
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<span style="font-family:Arial;font-size:9.70pt;font-weight:bold;">Portfolio Turnover. </span>
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs  and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the Fund's most recent fiscal year, the Fund's portfolio turnover rate was 98% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	98.00%
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	Investors who purchase $1 million or more of Class A shares and sell these shares within 12 months of purchase are also subject to a contingent deferred sales charge (“CDSC”) of 1.00%, although they are not subject to an initial sales charge. The CDSC is waived for certain retirement and/or benefit plans.Class C shares are sold with a CDSC of 1.00% on sales made within 12 months of purchase.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	<span style="color:#000000;font-family:Arial;font-size:9.70pt;"> You may qualify for sales charge discounts if you and an eligible group of related investors purchase, or agree to purchase in the future, </span><span style="color:#000000;font-family:Arial;font-size:9.70pt;">$25,000</span><span style="color:#000000;font-family:Arial;font-size:9.70pt;"> or more in shares of the Fund or other funds in the PGIM Funds family.</span>
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 25,000
Expense Example [Heading]	rr_ExpenseExampleHeading	<span style="color:#000000;font-family:Arial;font-size:9.70pt;font-weight:bold;">Example. </span>
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following hypothetical example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. It assumes that you invest $10,000 in the Fund for the time periods indicated and then, except as indicated, redeem all your shares at the end of those periods. It assumes a 5% return on your investment each year, that the Fund's operating expenses remain the same (except that fee waivers or reimbursements, if any, are only reflected in the 1-Year figures) and that all dividends and distributions are reinvested. Your actual costs may be higher or lower.
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	<span style="color:#000000;font-family:Arial;font-size:7.76pt;font-weight:bold;margin-left:3pt;">If Shares Are Redeemed</span>
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	<span style="color:#000000;font-family:Arial;font-size:7.76pt;font-weight:bold;margin-left:3pt;">If Shares Are Not Redeemed</span>
Strategy [Heading]	rr_StrategyHeading	<span style="color:#000000;font-family:Arial;font-size:9.70pt;font-weight:bold;text-transform:uppercase;">INVESTMENTS, RISKS AND PERFORMANCE</span><span style="font-family:Arial;font-size:9.70pt;font-weight:bold;">Principal Investment Strategies. </span>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund seeks investments that will appreciate over time. The Fund’s goal is to outperform the returns of the S&P 500 Index over the long term. The Fund normally invests at least 80% of its investable assets in equity and equity-related securities of large capitalization U.S. companies. The term “investable assets” refers to the Fund’s net assets plus any borrowings for investment purposes. The Fund’s investable assets will be less than its total assets to the extent that it has borrowed money for non-investment purposes, such as to meet anticipated redemptions.The subadviser employs a quantitatively driven, bottom-up investment process. The stock selection process utilizes an adaptive model that evaluates stocks differently based on their growth expectations. The subadviser constructs portfolios that seek to maximize the Fund’s investment in the most attractive stocks identified by the model, subject to risk constraints.
Risk [Heading]	rr_RiskHeading	<span style="font-family:Arial;font-size:9.70pt;font-weight:bold;">Principal Risks. </span>
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	All investments have risks to some degree. The value of your investment in the Fund, as well as the amount of return you receive on your investment, may fluctuate significantly from day-to-day and over time.You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments.An investment in the Fund is not guaranteed to achieve its investment objective; is not a deposit with a bank; and is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The following is a summary description of principal risks of investing in the Fund.The order of the below risk factors does not indicate the significance of any particular risk factor.Active Trading Risk. The Fund actively and frequently trades its portfolio securities. High portfolio turnover results in higher transaction costs, which can affect the Fund’s performance and have adverse tax consequences. In addition, high portfolio turnover may also mean that a proportionately greater amount of distributions to shareholders will be taxed as ordinary income rather than long-term capital gains compared to investment companies with lower portfolio turnover.Blend Style Risk. The Fund's blend investment style may subject the Fund to risks of both value and growth investing. The portion of the Fund's portfolio that makes investments pursuant to a growth strategy may be subject to above-average fluctuations as a result of seeking higher than average capital growth. The portion of the Fund's portfolio that makes investments pursuant to a value strategy may be subject to the risk that the market may not recognize a security's intrinsic value for long periods of time or at all, or that a stock judged to be undervalued may actually be appropriately priced or overvalued. Issuers of value stocks may have experienced adverse business developments or may be subject to special risks that have caused the stock to be out of favor. If the Fund’s assessment of market conditions or a company’s value is inaccurate, the Fund could suffer losses or produce poor performance relative to other funds. Historically, growth stocks have performed best during later stages of economic expansion and value stocks have performed best during periods of economic recovery. Therefore, both styles may over time go in and out of favor with the markets. At times when a style is out of favor, that portion of the portfolio may lag the other portion of the portfolio, which may cause the Fund to underperform the market in general, its benchmark and other mutual funds. Growth and value stocks have historically produced similar long-term results, though each category has periods when it outperforms the other.Economic and Market Events Risk. Events in the U.S. and global financial markets, including actions taken by the U.S. Federal Reserve or foreign central banks to stimulate or stabilize economic growth or the functioning of the securities markets, or otherwise reduce inflation may at times result in unusually high market volatility, which could negatively impact performance. Governmental efforts to curb inflation often have negative effects on the level of economic activity. Relatively reduced liquidity in credit and fixed income markets could adversely affect issuers worldwide.Equity and Equity-Related Securities Risk. Equity and equity-related securities may be subject to changes in value, and their values may be more volatile than those of other asset classes. In addition to an individual security losing value, the value of the equity markets or a sector in which the Fund invests could go down. Different parts of a market can react differently to adverse issuer, market, regulatory, political and economic developments.Increase in Expenses Risk. Your actual cost of investing in the Fund may be higher than the expenses shown in the expense table for a variety of reasons. For example, expense ratios may be higher than those shown if average net assets decrease. Net assets are more likely to decrease and Fund expense ratios are more likely to increase when markets are volatile. Active and frequent trading of Fund securities can increase expenses.Large Capitalization Company Risk. Companies with large market capitalizations go in and out of favor based on market and economic conditions. Larger companies tend to be less volatile than companies with smaller market capitalizations. In exchange for this potentially lower risk, the Fund's value may not rise or fall as much as the value of funds that emphasize companies with smaller market capitalizations.Large Shareholder and Large Scale Redemption Risk. Certain individuals, accounts, funds (including funds affiliated with the Manager) or institutions, including the Manager and its affiliates, may from time to time own or control a substantial amount of the Fund’s shares. There is no requirement that these entities maintain their investment in the Fund. There is a risk that such large shareholders or that the Fund’s shareholders generally may redeem all or a substantial portion of their investments in the Fund in a short period of time, which could have a significant negative impact on the Fund’s NAV, liquidity, and brokerage costs. Large redemptions could also result in tax consequences to shareholders and impact the Fund’s ability to implement its investment strategy. The Fund’s ability to pursue its investment objective after one or more large scale redemptions may be impaired and, as a result, the Fund may invest a larger portion of its assets in cash or cash equivalents.Management Risk. Actively managed funds are subject to management risk. The subadviser will apply investment techniques and risk analyses in making investment decisions for the Fund, but the subadviser’s judgments about the attractiveness, value or market trends affecting a particular security, industry or sector or about market movements may be incorrect. Additionally, the investments selected for the Fund may underperform the markets in general, the Fund's benchmark and other funds with similar investment objectives.Market Disruption and Geopolitical Risks. Market disruption can be caused by economic, financial or political events and factors, including but not limited to, international wars or conflicts (including Russia’s military invasion of Ukraine), geopolitical developments (including trading and tariff arrangements, sanctions and cybersecurity attacks), instability in regions such as Asia, Eastern Europe and the Middle East, terrorism, natural disasters and public health epidemics (including the outbreak of COVID-19 globally).The extent and duration of such events and resulting market disruptions cannot be predicted, but could be substantial and could magnify the impact of other risks to the Fund. These and other similar events could adversely affect the U.S. and foreign financial markets and lead to increased market volatility, reduced liquidity in the securities markets, significant negative impacts on issuers and the markets for certain securities and commodities and/or government intervention. They may also cause short- or long-term economic uncertainties in the United States and worldwide. As a result, whether or not the Fund invests in securities of issuers located in or with significant exposure to the countries directly affected, the value and liquidity of the Fund’s investments may be negatively impacted. Further, due to closures of certain markets and restrictions on trading certain securities, the value of certain securities held by the Fund could be significantly impacted, which could lead to such securities being valued at zero.COVID-19 and the related governmental and public responses have had and may continue to have an impact on the Fund’s investments and net asset value and have led and may continue to lead to increased market volatility and the potential for illiquidity in certain classes of securities and sectors of the market. They have also had and may continue to result in periods of business disruption, business closures, inability to obtain raw materials, supplies and component parts, and reduced or disrupted operations for the issuers in which the Fund invests. The occurrence, reoccurrence and pendency of public health epidemics could adversely affect the economies and financial markets either in specific countries or worldwide.Market Risk. Securities markets may be volatile and the market prices of the Fund’s securities may decline. Securities fluctuate in price based on changes in an issuer’s financial condition and overall market and economic conditions. If the market prices of the securities owned by the Fund fall, the value of your investment in the Fund will decline.Model Design Risk. The subadviser uses certain quantitative models to help guide its investment decisions. The design of the underlying models may be flawed or incomplete. The investment models the subadviser uses are based on historical and theoretical underpinnings that it believes are sound. There can be no guarantee, however, that these underpinnings will correlate with security price behavior in the manner assumed by the subadviser’s models. Additionally, the quantitative techniques that underlie the subadviser’s portfolio construction processes may fail to fully anticipate important risks.Model Implementation Risk. While the subadviser strives to mitigate the likelihood of material implementation errors, it is impossible to completely eliminate the risk of error in the implementation of the computer models that guide the subadviser's quantitative investment processes. Additionally, it may be difficult to implement model recommendations in volatile and rapidly changing market conditions.
Risk Lose Money [Text]	rr_RiskLoseMoney	<span style="color:#000000;font-family:Arial;font-size:9.70pt;">You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments.</span>
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	<span style="color:#000000;font-family:Arial;font-size:9.70pt;">An investment in the Fund is not guaranteed to achieve its investment objective; is not a deposit with a bank; and is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</span>
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	<span style="color:#000000;font-family:Arial;font-size:9.70pt;font-weight:bold;">Performance.</span>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart shows the Fund's performance for Class Z shares for each full calendar year of operations or for the last 10 calendar years, whichever is shorter. The following table shows the Fund's average annual returns and also compares the Fund’s performance with the average annual total returns of an index or other benchmark. The bar chart and table demonstrate the risk of investing in the Fund by showing how returns can change from year to year.Past performance (before and after taxes) does not mean that the Fund will achieve similar results in the future.Without the management fee waiver and/or expense reimbursement, if any, the annual total returns would have been lower. Updated Fund performance information, including current net asset value, is available online at www.pgim.com/investments.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	<span style="color:#000000;font-family:Arial;font-size:9.70pt;">The following table shows the Fund's average annual </span><span style="color:#000000;font-family:Arial;font-size:9.70pt;">returns and also compares the Fund’s performance with the average annual total returns of an index or other benchmark. The bar chart and table demonstrate the risk of investing in the Fund by showing how returns can change from year to year.</span>
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	<span style="color:#000000;font-family:Arial;font-size:9.70pt;">www.pgim.com/investments</span>
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	<span style="color:#000000;font-family:Arial;font-size:9.70pt;">Past performance (before and after taxes) does not mean that the Fund will achieve similar results in the future.</span>
Bar Chart [Heading]	rr_BarChartHeading	Annual Total Returns (Class Z Shares)1
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter:Worst Quarter:22.47%2nd Quarter 2020-23.07%1st Quarter 20201 The total return for Class Z shares from January 1, 2022 toSeptember 30, 2022was-22.10%
Performance Table Heading	rr_PerformanceTableHeading	<span style="color:#000000;font-family:Arial;font-size:7.76pt;font-weight:bold;margin-left:3pt;">Average Annual Total Returns % (including sales charges) (as of 12-31-21)</span>
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	<span style="font-family:Arial;font-size:7.76pt;">After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</span>
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	<span style="font-family:Arial;font-size:7.76pt;">After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred </span><span style="font-family:Arial;font-size:7.76pt;">arrangements, such as 401 (k) plans or individual retirement accounts.</span>
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	<span style="font-family:Arial;font-size:7.76pt;"> After-tax returns are shown only for Class Z shares. After-tax returns for other classes will vary due to differing sales charges and expenses.</span>
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	° After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401 (k) plans or individual retirement accounts. After-tax returns are shown only for Class Z shares. After-tax returns for other classes will vary due to differing sales charges and expenses.
PGIM Quant Solutions Large-Cap Core Fund | A
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	5.50%
Maximum deferred sales charge (load) (as a percentage of the lower of the original purchase price or the net asset value at redemption)	rr_MaximumDeferredSalesChargeOverOther	1.00%	[1]
Maximum sales charge (load) imposed on reinvested dividends and other distributions	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of Amount Redeemed)	rr_RedemptionFeeOverRedemption	none
Exchange fee	rr_ExchangeFeeOverRedemption	none
Maximum account fee (accounts under $10,000)	rr_MaximumAccountFee	$ 15
Management fee	rr_ManagementFeesOverAssets	0.35%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	0.30%
Other expenses	rr_OtherExpensesOverAssets	0.18%
Total annual Fund operating expenses	rr_ExpensesOverAssets	0.83%
Fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.11%)
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	rr_NetExpensesOverAssets	0.72%	[2],[3]
1 Year	rr_ExpenseExampleYear01	$ 619
3 Years	rr_ExpenseExampleYear03	790
5 Years	rr_ExpenseExampleYear05	975
10 Years	rr_ExpenseExampleYear10	1,509
1 Year	rr_ExpenseExampleNoRedemptionYear01	619
3 Years	rr_ExpenseExampleNoRedemptionYear03	790
5 Years	rr_ExpenseExampleNoRedemptionYear05	975
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,509
One Year	rr_AverageAnnualReturnYear01	22.03%
Five Years	rr_AverageAnnualReturnYear05	14.74%
Ten Years	rr_AverageAnnualReturnYear10	14.56%
PGIM Quant Solutions Large-Cap Core Fund | C
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load) (as a percentage of the lower of the original purchase price or the net asset value at redemption)	rr_MaximumDeferredSalesChargeOverOther	1.00%	[4]
Maximum sales charge (load) imposed on reinvested dividends and other distributions	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of Amount Redeemed)	rr_RedemptionFeeOverRedemption	none
Exchange fee	rr_ExchangeFeeOverRedemption	none
Maximum account fee (accounts under $10,000)	rr_MaximumAccountFee	$ 15
Management fee	rr_ManagementFeesOverAssets	0.35%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other expenses	rr_OtherExpensesOverAssets	0.30%
Total annual Fund operating expenses	rr_ExpensesOverAssets	1.65%
Fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.21%)
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	rr_NetExpensesOverAssets	1.44%	[2],[3]
1 Year	rr_ExpenseExampleYear01	$ 247
3 Years	rr_ExpenseExampleYear03	500
5 Years	rr_ExpenseExampleYear05	877
10 Years	rr_ExpenseExampleYear10	1,718
1 Year	rr_ExpenseExampleNoRedemptionYear01	147
3 Years	rr_ExpenseExampleNoRedemptionYear03	500
5 Years	rr_ExpenseExampleNoRedemptionYear05	877
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,718
One Year	rr_AverageAnnualReturnYear01	27.24%
Five Years	rr_AverageAnnualReturnYear05	15.20%
Ten Years	rr_AverageAnnualReturnYear10	14.36%
PGIM Quant Solutions Large-Cap Core Fund | Z
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load) (as a percentage of the lower of the original purchase price or the net asset value at redemption)	rr_MaximumDeferredSalesChargeOverOther	none
Maximum sales charge (load) imposed on reinvested dividends and other distributions	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of Amount Redeemed)	rr_RedemptionFeeOverRedemption	none
Exchange fee	rr_ExchangeFeeOverRedemption	none
Maximum account fee (accounts under $10,000)	rr_MaximumAccountFee	none	[5]
Management fee	rr_ManagementFeesOverAssets	0.35%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	none
Other expenses	rr_OtherExpensesOverAssets	0.19%
Total annual Fund operating expenses	rr_ExpensesOverAssets	0.54%
Fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.12%)
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	rr_NetExpensesOverAssets	0.42%	[2],[3]
1 Year	rr_ExpenseExampleYear01	$ 43
3 Years	rr_ExpenseExampleYear03	161
5 Years	rr_ExpenseExampleYear05	290
10 Years	rr_ExpenseExampleYear10	666
1 Year	rr_ExpenseExampleNoRedemptionYear01	43
3 Years	rr_ExpenseExampleNoRedemptionYear03	161
5 Years	rr_ExpenseExampleNoRedemptionYear05	290
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 666
2012	rr_AnnualReturn2012	17.31%
2013	rr_AnnualReturn2013	33.25%
2014	rr_AnnualReturn2014	14.09%
2015	rr_AnnualReturn2015	0.01%
2016	rr_AnnualReturn2016	11.09%
2017	rr_AnnualReturn2017	23.40%
2018	rr_AnnualReturn2018	(7.47%)
2019	rr_AnnualReturn2019	29.61%
2020	rr_AnnualReturn2020	11.23%
2021	rr_AnnualReturn2021	29.34%
Year to Date Return, Label	rr_YearToDateReturnLabel	<span style="font-family:Arial;font-size:5pt;margin-left:0.0pt;position:relative;top:-3.25pt;">1</span><span style="font-family:Arial;font-size:7.76pt;margin-left:0.0pt;"> The total return for Class Z shares from January 1, 2022 to</span>
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2022
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	(22.10%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	<span style="color:#000000;font-family:Arial;font-size:9.70pt;font-weight:bold;margin-left:0.00pt;">Best Quarter:</span>
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	22.47%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	<span style="color:#000000;font-family:Arial;font-size:9.70pt;font-weight:bold;margin-left:0.00pt;">Worst Quarter:</span>
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(23.07%)
One Year	rr_AverageAnnualReturnYear01	29.34%
Five Years	rr_AverageAnnualReturnYear05	16.32%
Ten Years	rr_AverageAnnualReturnYear10	15.48%
PGIM Quant Solutions Large-Cap Core Fund | R6
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load) (as a percentage of the lower of the original purchase price or the net asset value at redemption)	rr_MaximumDeferredSalesChargeOverOther	none
Maximum sales charge (load) imposed on reinvested dividends and other distributions	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of Amount Redeemed)	rr_RedemptionFeeOverRedemption	none
Exchange fee	rr_ExchangeFeeOverRedemption	none
Maximum account fee (accounts under $10,000)	rr_MaximumAccountFee	none
Management fee	rr_ManagementFeesOverAssets	0.35%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	none
Other expenses	rr_OtherExpensesOverAssets	0.04%
Total annual Fund operating expenses	rr_ExpensesOverAssets	0.39%
Fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.04%)
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	rr_NetExpensesOverAssets	0.35%	[2],[3]
1 Year	rr_ExpenseExampleYear01	$ 36
3 Years	rr_ExpenseExampleYear03	121
5 Years	rr_ExpenseExampleYear05	215
10 Years	rr_ExpenseExampleYear10	489
1 Year	rr_ExpenseExampleNoRedemptionYear01	36
3 Years	rr_ExpenseExampleNoRedemptionYear03	121
5 Years	rr_ExpenseExampleNoRedemptionYear05	215
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 489
One Year	rr_AverageAnnualReturnYear01	29.65%
Five Years	rr_AverageAnnualReturnYear05	16.48%
Ten Years	rr_AverageAnnualReturnYear10
SinceInception	rr_AverageAnnualReturnSinceInception	16.32%
InceptionDate	rr_AverageAnnualReturnInceptionDate	Dec. 28, 2016
PGIM Quant Solutions Large-Cap Core Fund | Return After Taxes on Distributions | Z
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	23.43%
Five Years	rr_AverageAnnualReturnYear05	13.08%
Ten Years	rr_AverageAnnualReturnYear10	13.05%
PGIM Quant Solutions Large-Cap Core Fund | Return After Taxes on Distributions and Sale of Fund Shares | Z
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	18.77%
Five Years	rr_AverageAnnualReturnYear05	12.13%
Ten Years	rr_AverageAnnualReturnYear10	12.20%
PGIM Quant Solutions Large-Cap Core Fund | S&P 500 Index
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	28.70%
Five Years	rr_AverageAnnualReturnYear05	18.47%
Ten Years	rr_AverageAnnualReturnYear10	16.54%

[1] Investors who purchase $1 million or more of Class A shares and sell these shares within 12 months of purchase are also subject to a contingent deferred sales charge (“CDSC”) of 1.00%, although they are not subject to an initial sales charge. The CDSC is waived for certain retirement and/or benefit plans.

[2] PGIM Investments LLC (“PGIM Investments”) has contractually agreed, through February 29, 2024, to limit net annual Fund operating expenses, exclusive of distribution and service (12b-1) fees, shareholder service fee, transfer agency expenses (including sub-transfer agency and networking fees), of each class of shares to 0.35% of the Fund’s average daily net assets. Separately, PGIM Investments has contractually agreed, through February 29, 2024, to limit Total Annual Fund Operating Expenses after fee waivers and/or expense reimbursements to 0.72% of average daily net assets for Class A shares and 1.44% of average daily net assets for Class C shares. These contractual waivers exclude interest, brokerage, taxes (such as income and foreign withholding taxes, stamp duty and deferred tax expenses), acquired fund fees and expenses, extraordinary expenses, and certain other Fund expenses such as dividend and interest expense and broker charges on short sales. Where applicable, PGIM Investments agrees to waive management fees or shared operating expenses on any share class to the same extent that it waives such expenses on any other share class. In addition, Total Annual Fund Operating Expenses for Class R6 shares will not exceed Total Annual Fund Operating Expenses for Class Z shares. Fees and/or expenses waived and/or reimbursed by PGIM Investments for the purpose of preventing the expenses from exceeding a certain expense ratio limit may be recouped by PGIM Investments within the same fiscal year during which such waiver and/or reimbursement is made if such recoupment can be realized without exceeding the expense limit in effect at the time of the recoupment for that fiscal year. These waivers may not be terminated prior to February 29, 2024 without the prior approval of the Fund's Board of Trustees.

[3] The distributor of the Fund has contractually agreed through February 29, 2024 to limit the Fund’s Class A distribution and service (12b-1) fees to 0.25% of the Fund’s Class A average daily net assets. This waiver may not be terminated prior to February 29, 2024 without the prior approval of the Fund’s Board of Trustees.

[4] Class C shares are sold with a CDSC of 1.00% on sales made within 12 months of purchase.

[5] Direct Transfer Agent Accounts holding under $10,000 of Class Z shares are subject to the $15 fee.