Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Prudential Sector Funds, Inc.
PGIM Jennison Financial Services Fund
Risk Return Abstract	rr_RiskReturnAbstract
Prospectus Date	rr_ProspectusDate	Jan. 29, 2024
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 capital appreciation.
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 26 of the Fund's Prospectus, Appendix A: Waivers and Discounts Available From Certain Financial Intermediaries on page 47 of the Fund's Prospectus and in Rights of Accumulation on page 65of the Fund's Statement of Additional Information (“SAI”).
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<span style="color:#000000;font-family:Arial Narrow;font-size:8pt;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 Narrow;font-size:8pt;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 Narrow;font-size:8pt;">March 31, </span><span style="font-family:Arial Narrow;font-size:8pt;">2025</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 20% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	20.00%
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 Narrow;font-size:8pt;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 Narrow;font-size:8pt;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="color:#000000;font-family:Arial;font-size:9.70pt;font-weight:bold;">Principal Investment Strategies. </span>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund seeks investments whose prices will increase over time. The Fund normally invests at least 80% of its investable assets in equity and equity-related securities of financial services related companies. The Fund defines financial services related companies as any company that is categorized, based on Global Industry Classification Standard (“GICS”) industry classifications, as they may be amended from time to time, within the Financials sector as well the financial services related GICS sector: Real Estate. 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 Fund invests primarily in securities of issuers in the United States, although it may also invest in securities of issuers in countries throughout the world. The Fund’s investments in the securities of non-U.S. issuers, which are referred to as “foreign securities,” include stocks and other equity-related securities. The Fund may invest up to 30% of its total assets in foreign securities.The Fund may participate in the initial public offering (“IPO”) market.The Fund's investment process focuses on stock selection through fundamental analysis. Fundamental analysis of a company involves the assessment of such factors as its business environment, management quality, balance sheet, income statement, anticipated earnings, revenues and dividends, and other related measures or indicators of value. The subadviser uses this “bottom-up” approach to identify stocks it believes have favorable risk/reward profiles.The Fund is “non-diversified” for purposes of the Investment Company Act of 1940 (the “1940 Act”), which means that it can invest a greater percentage of its assets in fewer issuers than a “diversified” fund.
Risk [Heading]	rr_RiskHeading	<span style="color:#000000;font-family:Arial;font-size:9.70pt;font-weight:bold;">Principal Risks. </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)
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	Returns prior to October 31, 2017 are not attributable to Jennison Associates LLC, as the Fund was managed by a different subadviser prior to October 31, 2017.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter:Worst Quarter:25.91%4th Quarter 2020-31.78%1st Quarter 2020
Performance Table Heading	rr_PerformanceTableHeading	<span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:3pt;">Average Annual Total Returns % (including sales charges) (as of 12-31-</span><span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;">23)</span>
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	<span style="color:#000000;font-family:Arial Narrow;font-size:8pt;">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="color:#000000;font-family:Arial Narrow;font-size:8pt;">Actual after-tax </span><span style="color:#000000;font-family:Arial Narrow;font-size:8pt;">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.</span>
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	<span style="color:#000000;font-family:Arial Narrow;font-size:8pt;">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 Jennison Financial Services Fund | Risk Lose Money [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments.
PGIM Jennison Financial Services Fund | Risk Not Insured Depository Institution [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	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.
PGIM Jennison Financial Services Fund | Currency Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Currency Risk. The Fund's net asset value could decline as a result of changes in exchange rates, which could adversely affect the Fund’s investments in currencies, or in securities that trade in, and receive revenues related to, currencies, or in derivatives that provide exposure to currencies. Certain foreign countries may impose restrictions on the ability of issuers of foreign securities to make payment of principal and interest or dividends to investors located outside the country, due to blockage of foreign currency exchanges or otherwise.
PGIM Jennison Financial Services Fund | Economic And Market Events Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	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.
PGIM Jennison Financial Services Fund | Equity And Equity Related Securities Risks [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	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.
PGIM Jennison Financial Services Fund | Financial Services Related Companies Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Financial Services Related Companies Risk. The Fund concentrates its investments in securities of financial services related companies. Financial services related companies are subject to extensive government regulation and can be significantly affected by the availability and cost of capital funds, changes in interest rates, the rate of corporate and consumer debt defaults, price competition, cyberattacks and technology malfunctions and failures and other financial services related factors. The profitability of financial services companies, therefore, may be adversely affected under certain circumstances and in certain market cycles. Because financial services companies are vulnerable to these factors and cycles, a large portion of the Fund’s investments may lose value during such periods.
PGIM Jennison Financial Services Fund | Foreign Securities Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Foreign Securities Risk. Investments in securities of non-U.S. issuers (including those denominated in U.S. dollars) may involve more risk than investing in securities of U.S. issuers. Foreign political, economic and legal systems, especially those in developing and emerging market countries, may be less stable and more volatile than in the United States. Foreign legal systems generally have fewer regulatory requirements than the U.S. legal system, particularly those of emerging markets. In general, less information is publicly available with respect to non-U.S. companies than U.S. companies. Non-U.S. companies generally are not subject to the same accounting, auditing, and financial reporting standards as are U.S. companies. Additionally, the changing value of foreign currencies and changes in exchange rates could also affect the value of the assets the Fund holds and the Fund's performance. Certain foreign countries may impose restrictions on the ability of issuers of foreign securities to make payment of principal and interest or dividends to investors located outside the country, due to blockage of foreign currency exchanges or otherwise. Investments in emerging markets are subject to greater volatility and price declines.In addition, the Fund's investments in non-U.S. securities may be subject to the risks of nationalization or expropriation of assets, imposition of currency exchange controls or restrictions on the repatriation of non-U.S. currency, confiscatory taxation and adverse diplomatic developments. Special U.S. tax considerations may apply.
PGIM Jennison Financial Services Fund | Increase In Expenses Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	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.
PGIM Jennison Financial Services Fund | Initial Public Offerings Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Initial Public Offerings Risk. The volume of IPOs and the levels at which the newly issued stocks trade in the secondary market are affected by the performance of the stock market overall. If IPOs are brought to the market, availability may be limited and if the Fund desires to acquire shares in such an offering, it may not be able to buy any shares at the offering price, or if it is able to buy shares, it may not be able to buy as many shares at the offering price as it would like. The prices of securities involved in IPOs are often subject to greater and more unpredictable price changes than more established stocks. Such unpredictability can have a dramatic impact on the Fund's performance (higher or lower) and any assumptions by investors based on the affected performance may be unwarranted. In addition, as Fund assets grow, the impact of IPO investments on performance will decline, which could reduce total returns.
PGIM Jennison Financial Services Fund | Large Shareholder And Large Scale Redemption Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	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.
PGIM Jennison Financial Services Fund | Management Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	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.
PGIM Jennison Financial Services Fund | Market Disruption And Geopolitical Risks [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	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 Ukraineand the Israel-Hamas war), 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.
PGIM Jennison Financial Services Fund | Market Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	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.
PGIM Jennison Financial Services Fund | Non Diversified Investment Company Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Non-Diversified Investment Company Risk. The Fund is non-diversified for purposes of the 1940 Act. This means that the Fund may invest a greater percentage of its assets in the securities of a single company or other issuer than a diversified fund. Investing in a non-diversified fund involves greater risk than investing in a diversified fund because a loss resulting from the decline in value of any one security may represent a greater portion of the total assets of a non-diversified fund.
PGIM Jennison Financial Services 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	rr_RedemptionFeeOverRedemption	none
Exchange fee	rr_ExchangeFeeOverRedemption	none
Maximum account fee (accounts under $10,000)	rr_MaximumAccountFee	$ 15
Management fee	rr_ManagementFeesOverAssets	0.75%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	0.30%
Other expenses	rr_OtherExpensesOverAssets	0.33%
Total annual Fund operating expenses	rr_ExpensesOverAssets	1.38%
Fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	none
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	rr_NetExpensesOverAssets	1.38%	[2],[3]
1 Year	rr_ExpenseExampleYear01	$ 683
3 Years	rr_ExpenseExampleYear03	963
5 Years	rr_ExpenseExampleYear05	1,264
10 Years	rr_ExpenseExampleYear10	2,116
1 Year	rr_ExpenseExampleNoRedemptionYear01	683
3 Years	rr_ExpenseExampleNoRedemptionYear03	963
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,264
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 2,116
One Year	rr_AverageAnnualReturnYear01	13.94%
Five Years	rr_AverageAnnualReturnYear05	11.86%
Ten Years	rr_AverageAnnualReturnYear10	4.82%
SinceInception	rr_AverageAnnualReturnSinceInception
InceptionDate	rr_AverageAnnualReturnInceptionDate
PGIM Jennison Financial Services 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	rr_RedemptionFeeOverRedemption	none
Exchange fee	rr_ExchangeFeeOverRedemption	none
Maximum account fee (accounts under $10,000)	rr_MaximumAccountFee	$ 15
Management fee	rr_ManagementFeesOverAssets	0.75%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other expenses	rr_OtherExpensesOverAssets	0.42%
Total annual Fund operating expenses	rr_ExpensesOverAssets	2.17%
Fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	none
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	rr_NetExpensesOverAssets	2.17%	[2],[3]
1 Year	rr_ExpenseExampleYear01	$ 320
3 Years	rr_ExpenseExampleYear03	679
5 Years	rr_ExpenseExampleYear05	1,164
10 Years	rr_ExpenseExampleYear10	2,303
1 Year	rr_ExpenseExampleNoRedemptionYear01	220
3 Years	rr_ExpenseExampleNoRedemptionYear03	679
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,164
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 2,303
One Year	rr_AverageAnnualReturnYear01	18.59%
Five Years	rr_AverageAnnualReturnYear05	12.27%
Ten Years	rr_AverageAnnualReturnYear10	4.65%
SinceInception	rr_AverageAnnualReturnSinceInception
InceptionDate	rr_AverageAnnualReturnInceptionDate
PGIM Jennison Financial Services Fund | R
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	rr_RedemptionFeeOverRedemption	none
Exchange fee	rr_ExchangeFeeOverRedemption	none
Maximum account fee (accounts under $10,000)	rr_MaximumAccountFee	none
Management fee	rr_ManagementFeesOverAssets	0.75%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other expenses	rr_OtherExpensesOverAssets	0.38%
Total annual Fund operating expenses	rr_ExpensesOverAssets	1.88%
Fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.25%)
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	rr_NetExpensesOverAssets	1.63%	[2],[3]
1 Year	rr_ExpenseExampleYear01	$ 166
3 Years	rr_ExpenseExampleYear03	567
5 Years	rr_ExpenseExampleYear05	993
10 Years	rr_ExpenseExampleYear10	2,181
1 Year	rr_ExpenseExampleNoRedemptionYear01	166
3 Years	rr_ExpenseExampleNoRedemptionYear03	567
5 Years	rr_ExpenseExampleNoRedemptionYear05	993
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 2,181
One Year	rr_AverageAnnualReturnYear01	20.25%
Five Years	rr_AverageAnnualReturnYear05	12.84%
Ten Years	rr_AverageAnnualReturnYear10	5.16%
SinceInception	rr_AverageAnnualReturnSinceInception
InceptionDate	rr_AverageAnnualReturnInceptionDate
PGIM Jennison Financial Services 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	rr_RedemptionFeeOverRedemption	none
Exchange fee	rr_ExchangeFeeOverRedemption	none
Maximum account fee (accounts under $10,000)	rr_MaximumAccountFee	none	[5]
Management fee	rr_ManagementFeesOverAssets	0.75%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	none
Other expenses	rr_OtherExpensesOverAssets	0.34%
Total annual Fund operating expenses	rr_ExpensesOverAssets	1.09%
Fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	none
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	rr_NetExpensesOverAssets	1.09%	[2],[3]
1 Year	rr_ExpenseExampleYear01	$ 111
3 Years	rr_ExpenseExampleYear03	347
5 Years	rr_ExpenseExampleYear05	601
10 Years	rr_ExpenseExampleYear10	1,329
1 Year	rr_ExpenseExampleNoRedemptionYear01	111
3 Years	rr_ExpenseExampleNoRedemptionYear03	347
5 Years	rr_ExpenseExampleNoRedemptionYear05	601
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,329
2014	rr_AnnualReturn2014	(5.42%)
2015	rr_AnnualReturn2015	(11.05%)
2016	rr_AnnualReturn2016	3.34%
2017	rr_AnnualReturn2017	23.53%
2018	rr_AnnualReturn2018	(13.55%)
2019	rr_AnnualReturn2019	33.73%
2020	rr_AnnualReturn2020	10.82%
2021	rr_AnnualReturn2021	27.08%
2022	rr_AnnualReturn2022	(17.37%)
2023	rr_AnnualReturn2023	20.88%
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	Dec. 31, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	25.91%
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	(31.78%)
One Year	rr_AverageAnnualReturnYear01	20.88%
Five Years	rr_AverageAnnualReturnYear05	13.47%
Ten Years	rr_AverageAnnualReturnYear10	5.73%
SinceInception	rr_AverageAnnualReturnSinceInception
InceptionDate	rr_AverageAnnualReturnInceptionDate
PGIM Jennison Financial Services 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	rr_RedemptionFeeOverRedemption	none
Exchange fee	rr_ExchangeFeeOverRedemption	none
Maximum account fee (accounts under $10,000)	rr_MaximumAccountFee	none
Management fee	rr_ManagementFeesOverAssets	0.75%
Distribution and service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	none
Other expenses	rr_OtherExpensesOverAssets	0.85%
Total annual Fund operating expenses	rr_ExpensesOverAssets	1.60%
Fee waiver and/or expense reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.60%)
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	rr_NetExpensesOverAssets	1.00%	[2],[3]
1 Year	rr_ExpenseExampleYear01	$ 102
3 Years	rr_ExpenseExampleYear03	446
5 Years	rr_ExpenseExampleYear05	814
10 Years	rr_ExpenseExampleYear10	1,849
1 Year	rr_ExpenseExampleNoRedemptionYear01	102
3 Years	rr_ExpenseExampleNoRedemptionYear03	446
5 Years	rr_ExpenseExampleNoRedemptionYear05	814
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,849
One Year	rr_AverageAnnualReturnYear01	21.00%
Five Years	rr_AverageAnnualReturnYear05	13.54%
Ten Years	rr_AverageAnnualReturnYear10
SinceInception	rr_AverageAnnualReturnSinceInception	7.17%
InceptionDate	rr_AverageAnnualReturnInceptionDate	Jan. 26, 2018
PGIM Jennison Financial Services Fund | Return After Taxes on Distributions | Z
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	19.15%
Five Years	rr_AverageAnnualReturnYear05	12.32%
Ten Years	rr_AverageAnnualReturnYear10	4.66%
SinceInception	rr_AverageAnnualReturnSinceInception
InceptionDate	rr_AverageAnnualReturnInceptionDate
PGIM Jennison Financial Services Fund | Return After Taxes on Distributions and Sale of Fund Shares | Z
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	13.54%
Five Years	rr_AverageAnnualReturnYear05	10.67%
Ten Years	rr_AverageAnnualReturnYear10	4.28%
SinceInception	rr_AverageAnnualReturnSinceInception
InceptionDate	rr_AverageAnnualReturnInceptionDate
PGIM Jennison Financial Services Fund | S&P Composite 1500 Financials Index
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	11.66%
Five Years	rr_AverageAnnualReturnYear05	11.68%
Ten Years	rr_AverageAnnualReturnYear10	9.98%
SinceInception	rr_AverageAnnualReturnSinceInception	6.15%	[6]
PGIM Jennison Financial Services Fund | S&P Composite 1500 Index
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	25.47%
Five Years	rr_AverageAnnualReturnYear05	15.39%
Ten Years	rr_AverageAnnualReturnYear10	11.76%
SinceInception	rr_AverageAnnualReturnSinceInception	10.89%	[6]

[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 March 31, 2025, to limit transfer agency, shareholder servicing, sub-transfer agency, and blue sky fees, as applicable, to the extent that such fees cause the Total Annual Fund Operating Expenses to exceed 1.00% of average daily net assets for Class R6 shares. This contractual expense limitation excludes 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. This expense limitation may not be terminated prior to March 31, 2025 without the prior approval of the Fund’s Board of Directors.

[3] The distributor of the Fund has contractually agreed to limit its distribution and service (12b-1) fees to 0.50% of the average daily net assets of the Fund’s Class R shares through March 31, 2025. This waiver may not be terminated prior to March 31, 2025 without the prior approval of the Fund’s Board of Directors.

[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.

[6] Since Inception returns for the Index are measured from the closest month-end to the inception date for Class R6 shares.