485BPOS

As filed with the Securities and Exchange Commission on November 13, 2019

Securities Act Registration No. 002-63394

Investment Company Act Registration No. 811-02896

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

PRE-EFFECTIVE AMENDMENT NO.

POST EFFECTIVE AMENDMENT NO. 78 (X)

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940

AMENDMENT NO. 77 (X)

Check appropriate box or boxes

Prudential Investment Portfolios, Inc. 15

Exact name of registrant as specified in charter

655 Broad Street, 17th Floor

Newark, New Jersey 07102

Address of Principal Executive Offices including Zip Code

(973) 367-7521

Registrant’s Telephone Number, Including Area Code

Andrew R. French

655 Broad Street, 17th Floor

Newark, New Jersey 07102

Name and Address of Agent for Service

It is proposed that this filing will become effective:

(X) immediately upon filing pursuant to paragraph (b)

     on      pursuant to paragraph (b)

     60 days after filing pursuant to paragraph (a)(1)

     on (            ) pursuant to paragraph (a)(1)

     75 days after filing pursuant to paragraph (a)(2)

     on (            ) pursuant to paragraph (a)(2) of Rule 4

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Post-Effective Amendment to the Registration Statement under Rule 485(b) under the Securities Act and has duly caused this Post-Effective Amendment to the Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Newark, and State of New Jersey, on the 13th day of November, 2019.

PRUDENTIAL INVESTMENT PORTFOLIOS, INC. 15

*

Stuart S. Parker, President

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date indicated.

Signature	Title	Date
*	Director
Ellen S. Alberding
*	Director
Kevin J. Bannon
*	Director
Scott E. Benjamin
*	Director
Linda W. Bynoe
*	Director
Barry H. Evans
*	Director
Keith F. Hartstein
*	Director
Laurie Simon Hodrick
*	Director
Michael S. Hyland
*	Director and President, Principal Executive Officer
Stuart S. Parker
*	Director
Brian K. Reid
*	Director
Grace C. Torres
*	Treasurer, Principal Financial and Accounting Officer
Christian J. Kelly
*By: /s/ Jonathan D. Shain	Attorney-in-Fact	November 13, 2019
Jonathan D. Shain

POWER OF ATTORNEY

for the PGIM Fund Complex

The undersigned, directors/ trustees and/or officers of each of the registered investment companies listed in Appendix A hereto, hereby authorize Andrew French, Claudia DiGiacomo, Diana Huffman, Raymond A. O’Hara and Jonathan D. Shain, or any of them, as attorney-in-fact, to sign on his or her behalf in the capacities indicated (and not in such person’s personal individual capacity for personal financial or estate planning), the Registration Statement on Form N-1A, filed for such registered investment company or any amendment thereto (including any pre-effective or post-effective amendments) and any and all supplements or other instruments in connection therewith, including Form N-PX, Forms 3, 4 and 5 for or on behalf of each registered investment company listed in Appendix A or any current or future series thereof, and to file the same, with all exhibits thereto, with the Securities and Exchange Commission.

This Power of Attorney may be executed in multiple counterparts, each of which shall be deemed an original, but which taken together shall constitute one instrument.

/s/ Ellen S. Alberding	/s/ Laurie Simon Hodrick
Ellen S. Alberding	Laurie Simon Hodrick
/s/ Kevin J. Bannon	/s/ Michael S. Hyland
Kevin J. Bannon	Michael S. Hyland
/s/ Scott E. Benjamin	/s/ Christian J. Kelly
Scott E. Benjamin	Christian J. Kelly
/s/ Linda W. Bynoe	/s/ Stuart S. Parker
Linda W. Bynoe	Stuart S. Parker
/s/ Barry H. Evans	/s/ Brian K. Reid
Barry H. Evans	Brian K. Reid
/s/ Keith F. Hartstein	/s/ Grace C. Torres
Keith F. Hartstein	Grace C. Torres
Dated: March 7, 2019

APPENDIX A

Prudential Government Money Market Fund, Inc.

The Prudential Investment Portfolios, Inc.

Prudential Investment Portfolios 2

Prudential Investment Portfolios 3

Prudential Investment Portfolios Inc. 14

Prudential Investment Portfolios 4

Prudential Investment Portfolios 5

Prudential Investment Portfolios 6

Prudential National Muni Fund, Inc.

Prudential Jennison Blend Fund, Inc.

Prudential Jennison Mid-Cap Growth Fund, Inc.

Prudential Investment Portfolios 7

Prudential Investment Portfolios 8

Prudential Jennison Small Company Fund, Inc.

Prudential Investment Portfolios 9

Prudential World Fund, Inc.

Prudential Investment Portfolios, Inc. 10

Prudential Jennison Natural Resources Fund, Inc.

Prudential Global Total Return Fund, Inc.

Prudential Investment Portfolios 12

Prudential Investment Portfolios, Inc. 15

Prudential Investment Portfolios 16

Prudential Investment Portfolios, Inc. 17

Prudential Investment Portfolios 18

Prudential Sector Funds, Inc.

Prudential Short-Term Corporate Bond Fund, Inc.

The Target Portfolio Trust

The Prudential Variable Contract Account-2

The Prudential Variable Contract Account-10

PGIM ETF Trust

Exhibit Index

Exhibit No.	Description
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CAL	XBRL Taxonomy Extension Calculation Linkbase
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

PRUDENTIAL INVESTMENT PORTFOLIOS, INC. 15

Prospectus Date

rr_ProspectusDate

Oct. 29, 2019

PGIM Short Duration High Yield Income Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

FUND SUMMARY

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The investment objective of the Fund is to provide a high level of current income.

Expense [Heading]

rr_ExpenseHeading

FUND FEES AND EXPENSES

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The tables below describe the sales charges, fees and expenses that you may pay if you buy and hold shares of the Fund. 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, $100,000 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 25 of the Fund's Prospectus, Appendix A: Waivers and Discounts Available From Certain Financial Intermediaries on page 46 of the Fund's Prospectus and in Rights of Accumulation on page 63 of the Fund's Statement of Additional Information (SAI).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_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

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2020

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover.

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 49% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

49.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and an eligible group of related investors purchase, or agree to purchase in the future, $100,000 or more in shares of the Fund or other funds in the PGIM Funds family.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

Expense Example [Heading]

rr_ExpenseExampleHeading

Example.

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

If Shares Are Redeemed

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If Shares Are Not Redeemed

Strategy [Heading]

rr_StrategyHeading

INVESTMENTS, RISKS AND PERFORMANCE Principal Investment Strategies.

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund will seek to achieve its investment objective by investing primarily in a diversified portfolio of high yield fixed income instruments that are rated below investment grade by a nationally recognized statistical rating organization (NRSRO) or, if unrated, are considered by the subadviser to be of comparable quality. Under normal market conditions, the Fund will invest at least 80% of its investable assets in a diversified portfolio of high yield fixed income instruments that are below investment grade (commonly referred to as junk bonds) with varying maturities and other investments (including derivatives) with similar economic characteristics. The term “below investment grade” refers to instruments either rated Ba1 or lower by Moody’s Investors Service, Inc. (Moody’s), BB+ or lower by S&P Global Ratings (S&P) or Fitch, Inc. (Fitch), or comparably rated by another NRSRO, or, if unrated, considered by the subadviser to be of comparable quality. 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 will provide 60 days’ prior written notice to shareholders of a change in the 80% policy stated above. Although the Fund may invest in instruments of any duration or maturity, the Fund normally will seek to maintain a weighted average portfolio duration of three years or less and a weighted average maturity of five years or less. As of September 30, 2019, the Fund’s weighted average portfolio duration was 1.8 years and the Fund’s weighted average maturity was 3.8 years.

The types of fixed income securities in which the Fund may invest include bonds, debentures, notes, commercial paper, floating rate or variable rate instruments and other similar types of debt instruments, as well as loan participations and assignments, money market instruments, payment-in-kind securities and derivatives related to or referencing these types of securities and instruments. The Fund may invest in fixed income instruments of companies or governments. The Fund may invest without limit in US currency-denominated and foreign currency denominated fixed income securities issued by foreign issuers, including issuers in emerging markets.

In determining which securities to buy and sell, the subadviser will consider, among other things, the financial history and condition, earnings trends, analysts' recommendations, and the prospects and the management of an issuer. The subadviser generally will employ fundamental analysis in making such determinations. Fundamental analysis involves review of financial statements and other data to attempt to predict an issuer's prospects and to try to decide whether the price of the issuer's security is under-valued or overvalued.

In managing the Fund’s assets, the subadviser uses a combination of top-down economic analysis and bottom-up research in conjunction with proprietary quantitative models and risk management systems. In the top-down economic analysis, the subadviser develops views on economic, policy and market trends. In its bottom-up research, the subadviser develops an internal rating and outlook on issuers. The rating and outlook is determined based on a thorough review of the financial health and trends of the issuer. The subadviser may also consider investment factors such as expected total return, yield, spread and potential for price appreciation as well as credit quality, maturity and risk. The Fund may invest in a security based upon the expected total return rather than the yield of such security.

Risk [Heading]

rr_RiskHeading

Principal Risks.

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

All investments have risks to some degree. An investment in the Fund is not guaranteed to achieve its investment objective; is not a deposit with a bank; is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any other government agency; and is subject to investment risks, including possible loss of your investment. The order of the below risk factors does not indicate the significance of any particular risk factor.

Bond Obligations Risk. As with credit risk, market risk and interest rate risk, the Fund's holdings, share price, yield and total return may fluctuate in response to bond market movements. The value of bonds may decline for issuer-related reasons, including management performance, financial leverage and reduced demand for the issuer’s goods and services. Certain types of fixed income obligations also may be subject to “call and redemption risk,” which is the risk that the issuer may call a bond held by the Fund for redemption before it matures and the Fund may not be able to reinvest at the same level and therefore would earn less income.

Credit Risk. This is the risk that the issuer, the guarantor or the insurer of a fixed income security, or the counterparty to a contract, may be unable or unwilling to make timely principal and interest payments, or to otherwise honor its obligations. Additionally, fixed income securities could lose value due to a loss of confidence in the ability of the issuer, guarantor, insurer or counterparty to pay back debt. The longer the maturity and the lower the credit quality of a bond, the more sensitive it is to credit risk.

Derivatives Risk. Derivatives involve special risks and costs and may result in losses to the Fund. The successful use of derivatives requires sophisticated management, and, to the extent that derivatives are used, the Fund will depend on the subadviser’s ability to analyze and manage derivatives transactions. The prices of derivatives may move in unexpected ways, especially in abnormal market conditions. Some derivatives are “leveraged” and therefore may magnify or otherwise increase investment losses to the Fund. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Other risks arise from the potential inability to terminate or sell derivatives positions. A liquid secondary market may not always exist for the Fund's derivatives positions. In fact, many over-the-counter derivative instruments will lack liquidity beyond the counterparty to the instrument. Over-the-counter derivative instruments also involve the risk that the other party will not meet its obligations to the Fund.

The US Government and foreign governments have adopted (and may adopt further) regulations governing derivatives markets, including mandatory clearing of certain derivatives, margin and reporting requirements. The ultimate impact of the regulations remains unclear. Additional regulation of derivatives may make derivatives more costly, limit their availability or utility, or otherwise adversely affect their performance or disrupt markets.

Economic and Market Events Risk. Events in the US and global financial markets, including actions taken by the US Federal Reserve or foreign central banks to stimulate or stabilize economic growth, may at times result in unusually high market volatility, which could negatively impact performance. Relatively reduced liquidity in credit and fixed income markets could adversely affect issuers worldwide.

Emerging Markets Risk. The risks of foreign investments are greater for investments in or exposed to emerging markets. Emerging market countries typically have economic and political systems that are less fully developed, and can be expected to be less stable, than those of more developed countries. For example, the economies of such countries can be subject to rapid and unpredictable rates of inflation or deflation. Low trading volumes may result in a lack of liquidity and price volatility. Emerging market countries may have policies that restrict investment by non-US investors, or that prevent non-US investors from withdrawing their money at will. Countries with emerging markets can be found in regions such as Asia, Latin America, Eastern Europe and Africa.

The Fund may invest in some emerging markets through trading structures or protocols that subject it to risks such as those associated with illiquidity, custody of assets, different settlement and clearance procedures and asserting legal title under a developing legal and regulatory regime to a greater degree than in developed markets or even in other emerging markets.

Foreign Securities Risk. Investments in securities of non-US issuers (including those denominated in US dollars) generally involve more risk than investing in securities of US 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 US. Foreign legal systems generally have fewer regulatory requirements than the US legal system. In general, less information is publicly available about non-US companies than about US companies. Non-US companies generally are not subject to the same accounting, auditing, and financial reporting standards as are US 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-US 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-US currency, confiscatory taxation and adverse diplomatic developments. Special US tax considerations may apply.

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.

Interest Rate Risk. The value of your investment may go down when interest rates rise. A rise in rates tends to have a greater impact on the prices of longer term or duration debt securities. When interest rates fall, the issuers of debt obligations may prepay principal more quickly than expected, and the Fund may be required to reinvest the proceeds at a lower interest rate. This is referred to as “prepayment risk.” When interest rates rise, debt obligations may be repaid more slowly than expected, and the value of the Fund's holdings may fall sharply. This is referred to as “extension risk.” The Fund may face a heightened level of interest rate risk as a result of the US Federal Reserve Board’s rate-setting policies. The Fund may lose money if short-term or long-term interest rates rise sharply or in a manner not anticipated by the subadviser.

Junk Bonds Risk. High-yield, high-risk bonds have predominantly speculative characteristics, including particularly high credit risk. Junk bonds tend to have lower market liquidity than higher-rated securities. The liquidity of particular issuers or industries within a particular investment category may shrink or disappear suddenly and without warning. The non-investment grade bond market can experience sudden and sharp price swings and become illiquid due to a variety of factors, including changes in economic forecasts, stock market activity, large sustained sales by major investors, a high profile default or a change in the market's psychology.

Liquidity Risk. Liquidity risk is the risk that the Fund could not meet requests to redeem shares issued by the Fund without significant dilution of remaining investors' interests in the Fund. The Fund may invest in instruments that trade in lower volumes and are more illiquid than other investments. If the Fund is forced to sell these investments to pay redemption proceeds or for other reasons, the Fund may lose money. In addition, when there is no willing buyer and investments cannot be readily sold at the desired time or price, the Fund may have to accept a lower price or may not be able to sell the instrument at all. The reduction in dealer market-making capacity in the fixed income markets that has occurred in recent years also has the potential to reduce liquidity. An inability to sell a portfolio position can adversely affect the Fund's value or prevent the Fund from being able to take advantage of other investment opportunities.

Management Risk. The value of your investment may decrease if judgments by the subadviser about the attractiveness, value or market trends affecting a particular security, industry or sector or about market movements are incorrect.

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.

Risk Lose Money [Text]

rr_RiskLoseMoney

and is subject to investment risks, including possible loss of your investment.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not guaranteed to achieve its investment objective; is not a deposit with a bank; is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any other government agency;

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance.

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 and a group of similar mutual funds. 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. Updated Fund performance information is available online at www.pgiminvestments.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

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 and a group of similar mutual funds. The bar chart and table demonstrate the risk of investing in the Fund by showing how returns can change from year to year.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.pgiminvestments.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance (before and after taxes) does not mean that the Fund will achieve similar results in the future.

Bar Chart [Heading]

rr_BarChartHeading

Annual Total Returns (Class Z Shares)1

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Best Quarter:		Worst Quarter:
2.71%	3rd Quarter 2016	-2.50%	4th Quarter 2018

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns % (including sales charges) (as of 12-31-18)

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

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.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

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.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

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.

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 Short Duration High Yield Income Fund | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

2.25%

Maximum deferred sales charge (load) (as a percentage of the lower of original purchase price or net asset value at redemption)

rr_MaximumDeferredSalesChargeOverOther

1.00%

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 fees

rr_ManagementFeesOverAssets

0.69%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.14%

Total annual Fund operating expenses

rr_ExpensesOverAssets

1.08%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.08%)

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

1.00%

^[1]

1 Year

rr_ExpenseExampleYear01

$ 325

3 Years

rr_ExpenseExampleYear03

553

5 Years

rr_ExpenseExampleYear05

800

10 Years

rr_ExpenseExampleYear10

1,506

1 Year

rr_ExpenseExampleNoRedemptionYear01

325

3 Years

rr_ExpenseExampleNoRedemptionYear03

553

5 Years

rr_ExpenseExampleNoRedemptionYear05

800

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,506

One Year

rr_AverageAnnualReturnYear01

(1.38%)

Five Years

rr_AverageAnnualReturnYear05

2.53%

Since Inception

rr_AverageAnnualReturnSinceInception

2.95%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 26, 2012

PGIM Short Duration High Yield Income Fund | Class C

Risk/Return:

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 original purchase price or net asset value at redemption)

rr_MaximumDeferredSalesChargeOverOther

1.00%

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 fees

rr_ManagementFeesOverAssets

0.69%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other expenses

rr_OtherExpensesOverAssets

0.12%

Total annual Fund operating expenses

rr_ExpensesOverAssets

1.81%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

1.75%

^[1]

1 Year

rr_ExpenseExampleYear01

$ 278

3 Years

rr_ExpenseExampleYear03

564

5 Years

rr_ExpenseExampleYear05

974

10 Years

rr_ExpenseExampleYear10

2,122

1 Year

rr_ExpenseExampleNoRedemptionYear01

178

3 Years

rr_ExpenseExampleNoRedemptionYear03

564

5 Years

rr_ExpenseExampleNoRedemptionYear05

974

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,122

One Year

rr_AverageAnnualReturnYear01

(0.81%)

Five Years

rr_AverageAnnualReturnYear05

2.23%

Since Inception

rr_AverageAnnualReturnSinceInception

2.55%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 26, 2012

PGIM Short Duration High Yield Income Fund | Class Z

Risk/Return:

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 original purchase price or 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

^[2]

Management fees

rr_ManagementFeesOverAssets

0.69%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.14%

Total annual Fund operating expenses

rr_ExpensesOverAssets

0.83%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.08%)

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.75%

^[1]

1 Year

rr_ExpenseExampleYear01

$ 77

3 Years

rr_ExpenseExampleYear03

257

5 Years

rr_ExpenseExampleYear05

453

10 Years

rr_ExpenseExampleYear10

1,018

1 Year

rr_ExpenseExampleNoRedemptionYear01

77

3 Years

rr_ExpenseExampleNoRedemptionYear03

257

5 Years

rr_ExpenseExampleNoRedemptionYear05

453

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,018

2013

rr_AnnualReturn2013

5.21%

^[3]

2014

rr_AnnualReturn2014

1.43%

^[3]

2015

rr_AnnualReturn2015

1.27%

^[3]

2016

rr_AnnualReturn2016

7.74%

^[3]

2017

rr_AnnualReturn2017

4.77%

^[3]

2018

rr_AnnualReturn2018

1.14%

^[3]

Year to Date Return, Label

rr_YearToDateReturnLabel

The total return for Class Z shares from January 1, 2019 to September 30, 2019

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2019

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

9.30%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2016

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

2.71%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2018

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.50%)

One Year

rr_AverageAnnualReturnYear01

1.14%

Five Years

rr_AverageAnnualReturnYear05

3.24%

Since Inception

rr_AverageAnnualReturnSinceInception

3.59%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 26, 2012

PGIM Short Duration High Yield Income Fund | Class R6

Risk/Return:

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 original purchase price or 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 fees

rr_ManagementFeesOverAssets

0.69%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.05%

Total annual Fund operating expenses

rr_ExpensesOverAssets

0.74%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.70%

^[1]

1 Year

rr_ExpenseExampleYear01

$ 72

3 Years

rr_ExpenseExampleYear03

233

5 Years

rr_ExpenseExampleYear05

408

10 Years

rr_ExpenseExampleYear10

915

1 Year

rr_ExpenseExampleNoRedemptionYear01

72

3 Years

rr_ExpenseExampleNoRedemptionYear03

233

5 Years

rr_ExpenseExampleNoRedemptionYear05

408

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 915

One Year

rr_AverageAnnualReturnYear01

1.31%

Five Years

rr_AverageAnnualReturnYear05

Since Inception

rr_AverageAnnualReturnSinceInception

3.48%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 27, 2014

PGIM Short Duration High Yield Income Fund | Return After Taxes on Distributions | Class Z

Risk/Return:

rr_RiskReturnAbstract

One Year

rr_AverageAnnualReturnYear01

(1.08%)

Five Years

rr_AverageAnnualReturnYear05

0.60%

Since Inception

rr_AverageAnnualReturnSinceInception

0.97%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 26, 2012

PGIM Short Duration High Yield Income Fund | Return After Taxes on Distribution and Sale of Fund Shares | Class Z

Risk/Return:

rr_RiskReturnAbstract

One Year

rr_AverageAnnualReturnYear01

0.69%

Five Years

rr_AverageAnnualReturnYear05

1.26%

Since Inception

rr_AverageAnnualReturnSinceInception

1.54%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 26, 2012

PGIM Short Duration High Yield Income Fund | Bloomberg Barclays US High Yield Ba/B Rated 1-5 Year 1% Capped Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

One Year

rr_AverageAnnualReturnYear01

0.65%

Five Years

rr_AverageAnnualReturnYear05

3.16%

Since Inception

rr_AverageAnnualReturnSinceInception

4.01%

^[4]

PGIM Short Duration High Yield Income Fund | Lipper High Yield Funds Average (reflects no deduction for sales charges or taxes)

Risk/Return:

rr_RiskReturnAbstract

One Year

rr_AverageAnnualReturnYear01

(2.84%)

Five Years

rr_AverageAnnualReturnYear05

2.65%

Since Inception

rr_AverageAnnualReturnSinceInception

3.63%

^[4]

[1] PGIM Investments LLC (PGIM Investments) has contractually agreed, through December 31, 2020, to limit Total Annual Fund Operating Expenses after fee waivers and/or expense reimbursements to 1.00% of average daily net assets for Class A shares, 1.75% of average daily net assets for Class C shares, 0.75% of average daily net assets for Class Z shares, and 0.70% of average daily net assets for Class R6 shares. This contractual waiver 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 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 waiver may not be terminated prior to December 31, 2020 without the prior approval of the Fund’s Board of Directors.

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

[3] The total return for Class Z shares from January 1, 2019 to September 30, 2019 was 9.30%.

[4] Since Inception returns for the Index and the Lipper Average are measured from the closest month-end to the inception date for Class A shares, Class C shares and Class Z shares.

XML

PGIM HIGH YIELD FUND

FUND SUMMARY

INVESTMENT OBJECTIVES

The investment objective of the Fund is to maximize current income.

As a secondary investment objective, the Fund will seek capital appreciation, but only when consistent with the Fund's primary investment objective of current income.

FUND FEES AND EXPENSES

The tables below describe the sales charges, fees and expenses that you may pay if you buy and hold shares of the Fund. 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, $50,000 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 25 of the Fund's Prospectus, Appendix A: Waivers and Discounts Available From Certain Financial Intermediaries on page 52 of the Fund's Prospectus and in Rights of Accumulation on page 63 of the Fund's Statement of Additional Information (SAI).

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - PGIM HIGH YIELD FUND - USD ($)	Class A	Class B	Class C	Class R	Class Z		Class R2	Class R4	Class R6
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	3.25%	none	none	none	none		none	none	none
Maximum deferred sales charge (load) (as a percentage of the lower of original purchase price or net asset value at redemption)	1.00%	5.00%	1.00%	none	none		none	none	none
Maximum sales charge (load) imposed on reinvested dividends and other distributions	none	none	none	none	none		none	none	none
Redemption fee	none	none	none	none	none		none	none	none
Exchange fee	none	none	none	none	none		none	none	none
Maximum account fee (accounts under $10,000)	$ 15	$ 15	$ 15	none	none	[1]	none	none	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - PGIM HIGH YIELD FUND		Class A	Class B	Class C	Class R	Class Z	Class R2		Class R4		Class R6
Management fees		0.38%	0.38%	0.38%	0.38%	0.38%	0.38%		0.38%		0.38%
Distribution and service (12b-1) fees		0.25%	0.75%	1.00%	0.75%	none	0.25%		none		none
Other expenses:		0.17%	0.15%	0.11%	0.21%	0.16%	0.59%		0.69%		0.02%
Shareholder service fee		none	none	none	none	none	0.10%	[1]	0.10%	[1]	none
Remainder of other expenses		0.17%	0.15%	0.11%	0.21%	0.16%	0.49%		0.59%		0.02%
Total annual Fund operating expenses		0.80%	1.28%	1.49%	1.34%	0.54%	1.22%		1.07%		0.40%
Fee waiver and/or expense reimbursement		none	none	none	(0.25%)	none	(0.31%)		(0.41%)		none
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	[2],[3]	0.80%	1.28%	1.49%	1.09%	0.54%	0.91%		0.66%		0.40%

Example.

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.

If Shares Are Redeemed

Expense Example - PGIM HIGH YIELD FUND - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	404	572	755	1,283
Class B	630	706	802	1,351
Class C	252	471	813	1,779
Class R	111	400	710	1,591
Class Z	55	173	302	677
Class R2	93	357	641	1,450
Class R4	67	300	550	1,269
Class R6	41	128	224	505

If Shares Are Not Redeemed

Expense Example, No Redemption - PGIM HIGH YIELD FUND - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	404	572	755	1,283
Class B	130	406	702	1,351
Class C	152	471	813	1,779
Class R	111	400	710	1,591
Class Z	55	173	302	677
Class R2	93	357	641	1,450
Class R4	67	300	550	1,269
Class R6	41	128	224	505

Portfolio Turnover.

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 43% of the average value of its portfolio.

INVESTMENTS, RISKS AND PERFORMANCE Principal Investment Strategies.

To achieve the Fund's income objective, the Fund’s subadviser invests, under normal circumstances, at least 80% of the Fund's investable assets in a diversified portfolio of high yield fixed income instruments rated Ba or lower by Moody's Investors Service, Inc. (Moody's) or BB or lower by S&P Global Ratings (S&P), and instruments either rated by another nationally recognized statistical rating organization (NRSRO), or considered by the subadviser to be of comparable quality, that is, junk bonds. The term “investable assets” in this Prospectus 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 may invest up to 20% of its investable assets in US currency-denominated fixed income securities of foreign governments and other foreign issuers, including Brady Bonds, which are long-term bonds issued by developing nations, and preferred stock. The Fund may also invest up to 10% of its investable assets in foreign currency-denominated fixed income securities issued by foreign or domestic issuers. Foreign government fixed income securities include securities issued by quasi-governmental entities, governmental agencies, supranational entities and other governmental entities.

In managing the Fund’s assets, the subadviser uses a combination of top-down economic analysis and bottom-up research in conjunction with proprietary quantitative models and risk management systems. In the top-down economic analysis, the subadviser develops views on economic, policy and market trends. In its bottom-up research, the subadviser develops an internal rating and outlook on issuers. The rating and outlook is determined based on a thorough review of the financial health and trends of the issuer. The subadviser may also consider investment factors such as expected total return, yield, spread and potential for price appreciation as well as credit quality, maturity and risk. The Fund may invest in a security based upon the expected total return rather than the yield of such security.

Principal Risks.

All investments have risks to some degree. An investment in the Fund is not guaranteed to achieve its investment objective; is not a deposit with a bank; is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any other government agency; and is subject to investment risks, including possible loss of your investment. The order of the below risk factors does not indicate the significance of any particular risk factor.

Bond Obligations Risk. As with credit risk, market risk and interest rate risk, the Fund's holdings, share price, yield and total return may fluctuate in response to bond market movements. The value of bonds may decline for issuer-related reasons, including management performance, financial leverage and reduced demand for the issuer’s goods and services. Certain types of fixed income obligations also may be subject to “call and redemption risk,” which is the risk that the issuer may call a bond held by the Fund for redemption before it matures and the Fund may not be able to reinvest at the same level and therefore would earn less income.

Credit Risk. This is the risk that the issuer, the guarantor or the insurer of a fixed income security, or the counterparty to a contract, may be unable or unwilling to make timely principal and interest payments, or to otherwise honor its obligations. Additionally, fixed income securities could lose value due to a loss of confidence in the ability of the issuer, guarantor, insurer or counterparty to pay back debt. The longer the maturity and the lower the credit quality of a bond, the more sensitive it is to credit risk.

Economic and Market Events Risk. Events in the US and global financial markets, including actions taken by the US Federal Reserve or foreign central banks to stimulate or stabilize economic growth, may at times result in unusually high market volatility, which could negatively impact performance. Relatively reduced liquidity in credit and fixed income markets could adversely affect issuers worldwide.

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.

Interest Rate Risk. The value of your investment may go down when interest rates rise. A rise in rates tends to have a greater impact on the prices of longer term or duration debt securities. When interest rates fall, the issuers of debt obligations may prepay principal more quickly than expected, and the Fund may be required to reinvest the proceeds at a lower interest rate. This is referred to as “prepayment risk.” When interest rates rise, debt obligations may be repaid more slowly than expected, and the value of the Fund's holdings may fall sharply. This is referred to as “extension risk.” The Fund may face a heightened level of interest rate risk as a result of the US Federal Reserve Board’s rate-setting policies. The Fund may lose money if short-term or long-term interest rates rise sharply or in a manner not anticipated by the subadviser.

Junk Bonds Risk. High-yield, high-risk bonds have predominantly speculative characteristics, including particularly high credit risk. Junk bonds tend to have lower market liquidity than higher-rated securities. The liquidity of particular issuers or industries within a particular investment category may shrink or disappear suddenly and without warning. The non-investment grade bond market can experience sudden and sharp price swings and become illiquid due to a variety of factors, including changes in economic forecasts, stock market activity, large sustained sales by major investors, a high profile default or a change in the market's psychology.

Liquidity Risk. Liquidity risk is the risk that the Fund could not meet requests to redeem shares issued by the Fund without significant dilution of remaining investors' interests in the Fund. The Fund may invest in instruments that trade in lower volumes and are more illiquid than other investments. If the Fund is forced to sell these investments to pay redemption proceeds or for other reasons, the Fund may lose money. In addition, when there is no willing buyer and investments cannot be readily sold at the desired time or price, the Fund may have to accept a lower price or may not be able to sell the instrument at all. The reduction in dealer market-making capacity in the fixed income markets that has occurred in recent years also has the potential to reduce liquidity. An inability to sell a portfolio position can adversely affect the Fund's value or prevent the Fund from being able to take advantage of other investment opportunities.

Management Risk. The value of your investment may decrease if judgments by the subadviser about the attractiveness, value or market trends affecting a particular security, industry or sector or about market movements are incorrect.

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.

Performance.

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 and a group of similar mutual funds. 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. Updated Fund performance information is available online at www.pgiminvestments.com.

Annual Total Returns (Class Z Shares)

Best Quarter:		Worst Quarter:
15.63%	2nd Quarter 2009	-5.15%	3rd Quarter 2011

The total return for Class Z shares from January 1, 2019 to September 30, 2019 was 12.64%.

Average Annual Total Returns % (including sales charges) (as of 12-31-18)

Average Annual Total Returns - PGIM HIGH YIELD FUND	One Year	Five Years	Ten Years	Since Inception	Inception Date
Class A Shares	(4.76%)	3.23%	9.74%
Class B Shares	(6.68%)	3.25%	9.54%
Class C Shares	(3.20%)	3.15%	9.34%
Class R Shares	(1.85%)	3.65%	9.82%
Class R2 Shares	(1.48%)			(1.40%)	Dec. 27, 2017
Class R4 Shares	(1.22%)			(1.15%)	Dec. 27, 2017
Class R6 Shares	(1.18%)	4.28%		6.05%	Oct. 31, 2011
Class Z Shares	(1.29%)	4.20%	10.40%
Class Z Shares | Return After Taxes on Distributions	(3.76%)	1.40%	7.34%
Class Z Shares | Return After Taxes on Distribution and Sale of Fund Shares	(0.73%)	1.93%	6.98%
Bloomberg Barclays US Corporate High Yield 1% Issuer Capped Index (reflects no deduction for fees, expenses or taxes)	(2.21%)	3.80%	11.14%
Lipper High Yield Funds Average (reflects no deduction for sales charges or taxes)	(2.84%)	2.65%	9.25%

° 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.

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

[1] “Shareholder service fee” reflects maximum allowable fees under a shareholder services plan.

[2] PGIM Investments LLC (PGIM Investments) has contractually agreed, through December 31, 2020, 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 0.91% of average daily net assets for Class R2 shares or 0.66% of average daily net assets for Class R4 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 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 December 31, 2020 without the prior approval of the Fund’s Board of Directors.

[3] The distributor of the Fund has contractually agreed through December 31, 2020 to reduce its distribution and service (12b-1) fees for Class R shares to 0.50% of the average daily net assets of the Class R shares. This waiver may not be terminated prior to December 31, 2020 without the prior approval of the Fund’s Board of Directors.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

PRUDENTIAL INVESTMENT PORTFOLIOS, INC. 15

Prospectus Date

rr_ProspectusDate

Oct. 29, 2019

PGIM HIGH YIELD FUND

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

FUND SUMMARY

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVES

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The investment objective of the Fund is to maximize current income.

Objective, Secondary [Text Block]

rr_ObjectiveSecondaryTextBlock

As a secondary investment objective, the Fund will seek capital appreciation, but only when consistent with the Fund's primary investment objective of current income.

Expense [Heading]

rr_ExpenseHeading

FUND FEES AND EXPENSES

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The tables below describe the sales charges, fees and expenses that you may pay if you buy and hold shares of the Fund. 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, $50,000 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 25 of the Fund's Prospectus, Appendix A: Waivers and Discounts Available From Certain Financial Intermediaries on page 52 of the Fund's Prospectus and in Rights of Accumulation on page 63 of the Fund's Statement of Additional Information (SAI).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_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

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2020

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover.

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 43% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

43.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and an eligible group of related investors purchase, or agree to purchase in the future, $50,000 or more in shares of the Fund or other funds in the PGIM Funds family.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expense Example [Heading]

rr_ExpenseExampleHeading

Example.

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

If Shares Are Redeemed

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If Shares Are Not Redeemed

Strategy [Heading]

rr_StrategyHeading

INVESTMENTS, RISKS AND PERFORMANCE Principal Investment Strategies.

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

To achieve the Fund's income objective, the Fund’s subadviser invests, under normal circumstances, at least 80% of the Fund's investable assets in a diversified portfolio of high yield fixed income instruments rated Ba or lower by Moody's Investors Service, Inc. (Moody's) or BB or lower by S&P Global Ratings (S&P), and instruments either rated by another nationally recognized statistical rating organization (NRSRO), or considered by the subadviser to be of comparable quality, that is, junk bonds. The term “investable assets” in this Prospectus 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 may invest up to 20% of its investable assets in US currency-denominated fixed income securities of foreign governments and other foreign issuers, including Brady Bonds, which are long-term bonds issued by developing nations, and preferred stock. The Fund may also invest up to 10% of its investable assets in foreign currency-denominated fixed income securities issued by foreign or domestic issuers. Foreign government fixed income securities include securities issued by quasi-governmental entities, governmental agencies, supranational entities and other governmental entities.

In managing the Fund’s assets, the subadviser uses a combination of top-down economic analysis and bottom-up research in conjunction with proprietary quantitative models and risk management systems. In the top-down economic analysis, the subadviser develops views on economic, policy and market trends. In its bottom-up research, the subadviser develops an internal rating and outlook on issuers. The rating and outlook is determined based on a thorough review of the financial health and trends of the issuer. The subadviser may also consider investment factors such as expected total return, yield, spread and potential for price appreciation as well as credit quality, maturity and risk. The Fund may invest in a security based upon the expected total return rather than the yield of such security.

Risk [Heading]

rr_RiskHeading

Principal Risks.

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

All investments have risks to some degree. An investment in the Fund is not guaranteed to achieve its investment objective; is not a deposit with a bank; is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any other government agency; and is subject to investment risks, including possible loss of your investment. The order of the below risk factors does not indicate the significance of any particular risk factor.

Bond Obligations Risk. As with credit risk, market risk and interest rate risk, the Fund's holdings, share price, yield and total return may fluctuate in response to bond market movements. The value of bonds may decline for issuer-related reasons, including management performance, financial leverage and reduced demand for the issuer’s goods and services. Certain types of fixed income obligations also may be subject to “call and redemption risk,” which is the risk that the issuer may call a bond held by the Fund for redemption before it matures and the Fund may not be able to reinvest at the same level and therefore would earn less income.

Credit Risk. This is the risk that the issuer, the guarantor or the insurer of a fixed income security, or the counterparty to a contract, may be unable or unwilling to make timely principal and interest payments, or to otherwise honor its obligations. Additionally, fixed income securities could lose value due to a loss of confidence in the ability of the issuer, guarantor, insurer or counterparty to pay back debt. The longer the maturity and the lower the credit quality of a bond, the more sensitive it is to credit risk.

Economic and Market Events Risk. Events in the US and global financial markets, including actions taken by the US Federal Reserve or foreign central banks to stimulate or stabilize economic growth, may at times result in unusually high market volatility, which could negatively impact performance. Relatively reduced liquidity in credit and fixed income markets could adversely affect issuers worldwide.

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.

Interest Rate Risk. The value of your investment may go down when interest rates rise. A rise in rates tends to have a greater impact on the prices of longer term or duration debt securities. When interest rates fall, the issuers of debt obligations may prepay principal more quickly than expected, and the Fund may be required to reinvest the proceeds at a lower interest rate. This is referred to as “prepayment risk.” When interest rates rise, debt obligations may be repaid more slowly than expected, and the value of the Fund's holdings may fall sharply. This is referred to as “extension risk.” The Fund may face a heightened level of interest rate risk as a result of the US Federal Reserve Board’s rate-setting policies. The Fund may lose money if short-term or long-term interest rates rise sharply or in a manner not anticipated by the subadviser.

Junk Bonds Risk. High-yield, high-risk bonds have predominantly speculative characteristics, including particularly high credit risk. Junk bonds tend to have lower market liquidity than higher-rated securities. The liquidity of particular issuers or industries within a particular investment category may shrink or disappear suddenly and without warning. The non-investment grade bond market can experience sudden and sharp price swings and become illiquid due to a variety of factors, including changes in economic forecasts, stock market activity, large sustained sales by major investors, a high profile default or a change in the market's psychology.

Liquidity Risk. Liquidity risk is the risk that the Fund could not meet requests to redeem shares issued by the Fund without significant dilution of remaining investors' interests in the Fund. The Fund may invest in instruments that trade in lower volumes and are more illiquid than other investments. If the Fund is forced to sell these investments to pay redemption proceeds or for other reasons, the Fund may lose money. In addition, when there is no willing buyer and investments cannot be readily sold at the desired time or price, the Fund may have to accept a lower price or may not be able to sell the instrument at all. The reduction in dealer market-making capacity in the fixed income markets that has occurred in recent years also has the potential to reduce liquidity. An inability to sell a portfolio position can adversely affect the Fund's value or prevent the Fund from being able to take advantage of other investment opportunities.

Management Risk. The value of your investment may decrease if judgments by the subadviser about the attractiveness, value or market trends affecting a particular security, industry or sector or about market movements are incorrect.

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.

Risk Lose Money [Text]

rr_RiskLoseMoney

and is subject to investment risks, including possible loss of your investment.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not guaranteed to achieve its investment objective; is not a deposit with a bank; is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any other government agency;

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance.

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 and a group of similar mutual funds. 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. Updated Fund performance information is available online at www.pgiminvestments.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

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 and a group of similar mutual funds. The bar chart and table demonstrate the risk of investing in the Fund by showing how returns can change from year to year.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.pgiminvestments.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance (before and after taxes) does not mean that the Fund will achieve similar results in the future.

Bar Chart [Heading]

rr_BarChartHeading

Annual Total Returns (Class Z Shares)

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Best Quarter:		Worst Quarter:
15.63%	2nd Quarter 2009	-5.15%	3rd Quarter 2011

The total return for Class Z shares from January 1, 2019 to September 30, 2019 was 12.64%.

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns % (including sales charges) (as of 12-31-18)

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

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.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

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.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

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.

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 HIGH YIELD FUND | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

3.25%

Maximum deferred sales charge (load) (as a percentage of the lower of original purchase price or net asset value at redemption)

rr_MaximumDeferredSalesChargeOverOther

1.00%

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 fees

rr_ManagementFeesOverAssets

0.38%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder service fee

rr_Component1OtherExpensesOverAssets

none

Remainder of other expenses

rr_Component2OtherExpensesOverAssets

0.17%

Other expenses:

rr_OtherExpensesOverAssets

0.17%

Total annual Fund operating expenses

rr_ExpensesOverAssets

0.80%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.80%

^[1],[2]

1 Year

rr_ExpenseExampleYear01

$ 404

3 Years

rr_ExpenseExampleYear03

572

5 Years

rr_ExpenseExampleYear05

755

10 Years

rr_ExpenseExampleYear10

1,283

1 Year

rr_ExpenseExampleNoRedemptionYear01

404

3 Years

rr_ExpenseExampleNoRedemptionYear03

572

5 Years

rr_ExpenseExampleNoRedemptionYear05

755

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,283

One Year

rr_AverageAnnualReturnYear01

(4.76%)

Five Years

rr_AverageAnnualReturnYear05

3.23%

Ten Years

rr_AverageAnnualReturnYear10

9.74%

Since Inception

rr_AverageAnnualReturnSinceInception

PGIM HIGH YIELD FUND | Class B

Risk/Return:

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 original purchase price or net asset value at redemption)

rr_MaximumDeferredSalesChargeOverOther

5.00%

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 fees

rr_ManagementFeesOverAssets

0.38%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Shareholder service fee

rr_Component1OtherExpensesOverAssets

none

Remainder of other expenses

rr_Component2OtherExpensesOverAssets

0.15%

Other expenses:

rr_OtherExpensesOverAssets

0.15%

Total annual Fund operating expenses

rr_ExpensesOverAssets

1.28%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

1.28%

^[1],[2]

1 Year

rr_ExpenseExampleYear01

$ 630

3 Years

rr_ExpenseExampleYear03

706

5 Years

rr_ExpenseExampleYear05

802

10 Years

rr_ExpenseExampleYear10

1,351

1 Year

rr_ExpenseExampleNoRedemptionYear01

130

3 Years

rr_ExpenseExampleNoRedemptionYear03

406

5 Years

rr_ExpenseExampleNoRedemptionYear05

702

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,351

One Year

rr_AverageAnnualReturnYear01

(6.68%)

Five Years

rr_AverageAnnualReturnYear05

3.25%

Ten Years

rr_AverageAnnualReturnYear10

9.54%

Since Inception

rr_AverageAnnualReturnSinceInception

PGIM HIGH YIELD FUND | Class C

Risk/Return:

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 original purchase price or net asset value at redemption)

rr_MaximumDeferredSalesChargeOverOther

1.00%

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 fees

rr_ManagementFeesOverAssets

0.38%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Shareholder service fee

rr_Component1OtherExpensesOverAssets

none

Remainder of other expenses

rr_Component2OtherExpensesOverAssets

0.11%

Other expenses:

rr_OtherExpensesOverAssets

0.11%

Total annual Fund operating expenses

rr_ExpensesOverAssets

1.49%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

1.49%

^[1],[2]

1 Year

rr_ExpenseExampleYear01

$ 252

3 Years

rr_ExpenseExampleYear03

471

5 Years

rr_ExpenseExampleYear05

813

10 Years

rr_ExpenseExampleYear10

1,779

1 Year

rr_ExpenseExampleNoRedemptionYear01

152

3 Years

rr_ExpenseExampleNoRedemptionYear03

471

5 Years

rr_ExpenseExampleNoRedemptionYear05

813

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,779

One Year

rr_AverageAnnualReturnYear01

(3.20%)

Five Years

rr_AverageAnnualReturnYear05

3.15%

Ten Years

rr_AverageAnnualReturnYear10

9.34%

Since Inception

rr_AverageAnnualReturnSinceInception

PGIM HIGH YIELD FUND | Class R

Risk/Return:

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 original purchase price or 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 fees

rr_ManagementFeesOverAssets

0.38%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Shareholder service fee

rr_Component1OtherExpensesOverAssets

none

Remainder of other expenses

rr_Component2OtherExpensesOverAssets

0.21%

Other expenses:

rr_OtherExpensesOverAssets

0.21%

Total annual Fund operating expenses

rr_ExpensesOverAssets

1.34%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.25%)

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

1.09%

^[1],[2]

1 Year

rr_ExpenseExampleYear01

$ 111

3 Years

rr_ExpenseExampleYear03

400

5 Years

rr_ExpenseExampleYear05

710

10 Years

rr_ExpenseExampleYear10

1,591

1 Year

rr_ExpenseExampleNoRedemptionYear01

111

3 Years

rr_ExpenseExampleNoRedemptionYear03

400

5 Years

rr_ExpenseExampleNoRedemptionYear05

710

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,591

One Year

rr_AverageAnnualReturnYear01

(1.85%)

Five Years

rr_AverageAnnualReturnYear05

3.65%

Ten Years

rr_AverageAnnualReturnYear10

9.82%

Since Inception

rr_AverageAnnualReturnSinceInception

PGIM HIGH YIELD FUND | Class Z

Risk/Return:

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 original purchase price or 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

^[3]

Management fees

rr_ManagementFeesOverAssets

0.38%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder service fee

rr_Component1OtherExpensesOverAssets

none

Remainder of other expenses

rr_Component2OtherExpensesOverAssets

0.16%

Other expenses:

rr_OtherExpensesOverAssets

0.16%

Total annual Fund operating expenses

rr_ExpensesOverAssets

0.54%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.54%

^[1],[2]

1 Year

rr_ExpenseExampleYear01

$ 55

3 Years

rr_ExpenseExampleYear03

173

5 Years

rr_ExpenseExampleYear05

302

10 Years

rr_ExpenseExampleYear10

677

1 Year

rr_ExpenseExampleNoRedemptionYear01

55

3 Years

rr_ExpenseExampleNoRedemptionYear03

173

5 Years

rr_ExpenseExampleNoRedemptionYear05

302

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 677

2009

rr_AnnualReturn2009

48.35%

2010

rr_AnnualReturn2010

14.73%

2011

rr_AnnualReturn2011

5.07%

2012

rr_AnnualReturn2012

14.16%

2013

rr_AnnualReturn2013

7.23%

2014

rr_AnnualReturn2014

2.84%

2015

rr_AnnualReturn2015

(2.59%)

2016

rr_AnnualReturn2016

15.30%

2017

rr_AnnualReturn2017

7.76%

2018

rr_AnnualReturn2018

(1.29%)

Year to Date Return, Label

rr_YearToDateReturnLabel

The total return for Class Z shares from January 1, 2019 to September 30, 2019

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2019

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

12.64%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

15.63%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2011

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.15%)

One Year

rr_AverageAnnualReturnYear01

(1.29%)

Five Years

rr_AverageAnnualReturnYear05

4.20%

Ten Years

rr_AverageAnnualReturnYear10

10.40%

Since Inception

rr_AverageAnnualReturnSinceInception

PGIM HIGH YIELD FUND | Class R2

Risk/Return:

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 original purchase price or 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 fees

rr_ManagementFeesOverAssets

0.38%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder service fee

rr_Component1OtherExpensesOverAssets

0.10%

^[4]

Remainder of other expenses

rr_Component2OtherExpensesOverAssets

0.49%

Other expenses:

rr_OtherExpensesOverAssets

0.59%

Total annual Fund operating expenses

rr_ExpensesOverAssets

1.22%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.31%)

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.91%

^[1],[2]

1 Year

rr_ExpenseExampleYear01

$ 93

3 Years

rr_ExpenseExampleYear03

357

5 Years

rr_ExpenseExampleYear05

641

10 Years

rr_ExpenseExampleYear10

1,450

1 Year

rr_ExpenseExampleNoRedemptionYear01

93

3 Years

rr_ExpenseExampleNoRedemptionYear03

357

5 Years

rr_ExpenseExampleNoRedemptionYear05

641

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,450

One Year

rr_AverageAnnualReturnYear01

(1.48%)

Five Years

rr_AverageAnnualReturnYear05

Ten Years

rr_AverageAnnualReturnYear10

Since Inception

rr_AverageAnnualReturnSinceInception

(1.40%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Dec. 27, 2017

PGIM HIGH YIELD FUND | Class R4

Risk/Return:

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 original purchase price or 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 fees

rr_ManagementFeesOverAssets

0.38%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder service fee

rr_Component1OtherExpensesOverAssets

0.10%

^[4]

Remainder of other expenses

rr_Component2OtherExpensesOverAssets

0.59%

Other expenses:

rr_OtherExpensesOverAssets

0.69%

Total annual Fund operating expenses

rr_ExpensesOverAssets

1.07%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.41%)

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.66%

^[1],[2]

1 Year

rr_ExpenseExampleYear01

$ 67

3 Years

rr_ExpenseExampleYear03

300

5 Years

rr_ExpenseExampleYear05

550

10 Years

rr_ExpenseExampleYear10

1,269

1 Year

rr_ExpenseExampleNoRedemptionYear01

67

3 Years

rr_ExpenseExampleNoRedemptionYear03

300

5 Years

rr_ExpenseExampleNoRedemptionYear05

550

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,269

One Year

rr_AverageAnnualReturnYear01

(1.22%)

Five Years

rr_AverageAnnualReturnYear05

Ten Years

rr_AverageAnnualReturnYear10

Since Inception

rr_AverageAnnualReturnSinceInception

(1.15%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Dec. 27, 2017

PGIM HIGH YIELD FUND | Class R6

Risk/Return:

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 original purchase price or 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 fees

rr_ManagementFeesOverAssets

0.38%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder service fee

rr_Component1OtherExpensesOverAssets

none

Remainder of other expenses

rr_Component2OtherExpensesOverAssets

0.02%

Other expenses:

rr_OtherExpensesOverAssets

0.02%

Total annual Fund operating expenses

rr_ExpensesOverAssets

0.40%

Fee waiver and/or expense reimbursement

rr_FeeWaiverOrReimbursementOverAssets

none

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.40%

^[1],[2]

1 Year

rr_ExpenseExampleYear01

$ 41

3 Years

rr_ExpenseExampleYear03

128

5 Years

rr_ExpenseExampleYear05

224

10 Years

rr_ExpenseExampleYear10

505

1 Year

rr_ExpenseExampleNoRedemptionYear01

41

3 Years

rr_ExpenseExampleNoRedemptionYear03

128

5 Years

rr_ExpenseExampleNoRedemptionYear05

224

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 505

One Year

rr_AverageAnnualReturnYear01

(1.18%)

Five Years

rr_AverageAnnualReturnYear05

4.28%

Ten Years

rr_AverageAnnualReturnYear10

Since Inception

rr_AverageAnnualReturnSinceInception

6.05%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 31, 2011

PGIM HIGH YIELD FUND | Return After Taxes on Distributions | Class Z

Risk/Return:

rr_RiskReturnAbstract

One Year

rr_AverageAnnualReturnYear01

(3.76%)

Five Years

rr_AverageAnnualReturnYear05

1.40%

Ten Years

rr_AverageAnnualReturnYear10

7.34%

Since Inception

rr_AverageAnnualReturnSinceInception

PGIM HIGH YIELD FUND | Return After Taxes on Distribution and Sale of Fund Shares | Class Z

Risk/Return:

rr_RiskReturnAbstract

One Year

rr_AverageAnnualReturnYear01

(0.73%)

Five Years

rr_AverageAnnualReturnYear05

1.93%

Ten Years

rr_AverageAnnualReturnYear10

6.98%

Since Inception

rr_AverageAnnualReturnSinceInception

PGIM HIGH YIELD FUND | Bloomberg Barclays US Corporate High Yield 1% Issuer Capped Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

One Year

rr_AverageAnnualReturnYear01

(2.21%)

Five Years

rr_AverageAnnualReturnYear05

3.80%

Ten Years

rr_AverageAnnualReturnYear10

11.14%

Since Inception

rr_AverageAnnualReturnSinceInception

PGIM HIGH YIELD FUND | Lipper High Yield Funds Average (reflects no deduction for sales charges or taxes)

Risk/Return:

rr_RiskReturnAbstract

One Year

rr_AverageAnnualReturnYear01

(2.84%)

Five Years

rr_AverageAnnualReturnYear05

2.65%

Ten Years

rr_AverageAnnualReturnYear10

9.25%

Since Inception

rr_AverageAnnualReturnSinceInception

[1] PGIM Investments LLC (PGIM Investments) has contractually agreed, through December 31, 2020, 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 0.91% of average daily net assets for Class R2 shares or 0.66% of average daily net assets for Class R4 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 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 December 31, 2020 without the prior approval of the Fund’s Board of Directors.

[2] The distributor of the Fund has contractually agreed through December 31, 2020 to reduce its distribution and service (12b-1) fees for Class R shares to 0.50% of the average daily net assets of the Class R shares. This waiver may not be terminated prior to December 31, 2020 without the prior approval of the Fund’s Board of Directors.

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

[4] “Shareholder service fee” reflects maximum allowable fees under a shareholder services plan.

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Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	PRUDENTIAL INVESTMENT PORTFOLIOS, INC. 15
Prospectus Date	rr_ProspectusDate	Oct. 29, 2019
Document Creation Date	dei_DocumentCreationDate	Oct. 29, 2019

XML

PGIM Short Duration High Yield Income Fund

FUND SUMMARY

INVESTMENT OBJECTIVE

The investment objective of the Fund is to provide a high level of current income.

FUND FEES AND EXPENSES

The tables below describe the sales charges, fees and expenses that you may pay if you buy and hold shares of the Fund. 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, $100,000 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 25 of the Fund's Prospectus, Appendix A: Waivers and Discounts Available From Certain Financial Intermediaries on page 46 of the Fund's Prospectus and in Rights of Accumulation on page 63 of the Fund's Statement of Additional Information (SAI).

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - PGIM Short Duration High Yield Income Fund - USD ($)	Class A	Class C	Class Z		Class R6
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	2.25%	none	none		none
Maximum deferred sales charge (load) (as a percentage of the lower of original purchase price or net asset value at redemption)	1.00%	1.00%	none		none
Maximum sales charge (load) imposed on reinvested dividends and other distributions	none	none	none		none
Redemption fee	none	none	none		none
Exchange fee	none	none	none		none
Maximum account fee (accounts under $10,000)	$ 15	$ 15	none	[1]	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - PGIM Short Duration High Yield Income Fund		Class A	Class C	Class Z	Class R6
Management fees		0.69%	0.69%	0.69%	0.69%
Distribution and service (12b-1) fees		0.25%	1.00%	none	none
Other expenses		0.14%	0.12%	0.14%	0.05%
Total annual Fund operating expenses		1.08%	1.81%	0.83%	0.74%
Fee waiver and/or expense reimbursement		(0.08%)	(0.06%)	(0.08%)	(0.04%)
Total annual Fund operating expenses after fee waiver and/or expense reimbursement	[1]	1.00%	1.75%	0.75%	0.70%

Example.

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.

If Shares Are Redeemed

Expense Example - PGIM Short Duration High Yield Income Fund - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	325	553	800	1,506
Class C	278	564	974	2,122
Class Z	77	257	453	1,018
Class R6	72	233	408	915

If Shares Are Not Redeemed

Expense Example, No Redemption - PGIM Short Duration High Yield Income Fund - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	325	553	800	1,506
Class C	178	564	974	2,122
Class Z	77	257	453	1,018
Class R6	72	233	408	915

Portfolio Turnover.

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 49% of the average value of its portfolio.

INVESTMENTS, RISKS AND PERFORMANCE Principal Investment Strategies.

The Fund will seek to achieve its investment objective by investing primarily in a diversified portfolio of high yield fixed income instruments that are rated below investment grade by a nationally recognized statistical rating organization (NRSRO) or, if unrated, are considered by the subadviser to be of comparable quality. Under normal market conditions, the Fund will invest at least 80% of its investable assets in a diversified portfolio of high yield fixed income instruments that are below investment grade (commonly referred to as junk bonds) with varying maturities and other investments (including derivatives) with similar economic characteristics. The term “below investment grade” refers to instruments either rated Ba1 or lower by Moody’s Investors Service, Inc. (Moody’s), BB+ or lower by S&P Global Ratings (S&P) or Fitch, Inc. (Fitch), or comparably rated by another NRSRO, or, if unrated, considered by the subadviser to be of comparable quality. 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 will provide 60 days’ prior written notice to shareholders of a change in the 80% policy stated above. Although the Fund may invest in instruments of any duration or maturity, the Fund normally will seek to maintain a weighted average portfolio duration of three years or less and a weighted average maturity of five years or less. As of September 30, 2019, the Fund’s weighted average portfolio duration was 1.8 years and the Fund’s weighted average maturity was 3.8 years.

The types of fixed income securities in which the Fund may invest include bonds, debentures, notes, commercial paper, floating rate or variable rate instruments and other similar types of debt instruments, as well as loan participations and assignments, money market instruments, payment-in-kind securities and derivatives related to or referencing these types of securities and instruments. The Fund may invest in fixed income instruments of companies or governments. The Fund may invest without limit in US currency-denominated and foreign currency denominated fixed income securities issued by foreign issuers, including issuers in emerging markets.

In determining which securities to buy and sell, the subadviser will consider, among other things, the financial history and condition, earnings trends, analysts' recommendations, and the prospects and the management of an issuer. The subadviser generally will employ fundamental analysis in making such determinations. Fundamental analysis involves review of financial statements and other data to attempt to predict an issuer's prospects and to try to decide whether the price of the issuer's security is under-valued or overvalued.

In managing the Fund’s assets, the subadviser uses a combination of top-down economic analysis and bottom-up research in conjunction with proprietary quantitative models and risk management systems. In the top-down economic analysis, the subadviser develops views on economic, policy and market trends. In its bottom-up research, the subadviser develops an internal rating and outlook on issuers. The rating and outlook is determined based on a thorough review of the financial health and trends of the issuer. The subadviser may also consider investment factors such as expected total return, yield, spread and potential for price appreciation as well as credit quality, maturity and risk. The Fund may invest in a security based upon the expected total return rather than the yield of such security.

Principal Risks.

All investments have risks to some degree. An investment in the Fund is not guaranteed to achieve its investment objective; is not a deposit with a bank; is not insured, endorsed or guaranteed by the Federal Deposit Insurance Corporation or any other government agency; and is subject to investment risks, including possible loss of your investment. The order of the below risk factors does not indicate the significance of any particular risk factor.

Bond Obligations Risk. As with credit risk, market risk and interest rate risk, the Fund's holdings, share price, yield and total return may fluctuate in response to bond market movements. The value of bonds may decline for issuer-related reasons, including management performance, financial leverage and reduced demand for the issuer’s goods and services. Certain types of fixed income obligations also may be subject to “call and redemption risk,” which is the risk that the issuer may call a bond held by the Fund for redemption before it matures and the Fund may not be able to reinvest at the same level and therefore would earn less income.

Credit Risk. This is the risk that the issuer, the guarantor or the insurer of a fixed income security, or the counterparty to a contract, may be unable or unwilling to make timely principal and interest payments, or to otherwise honor its obligations. Additionally, fixed income securities could lose value due to a loss of confidence in the ability of the issuer, guarantor, insurer or counterparty to pay back debt. The longer the maturity and the lower the credit quality of a bond, the more sensitive it is to credit risk.

Derivatives Risk. Derivatives involve special risks and costs and may result in losses to the Fund. The successful use of derivatives requires sophisticated management, and, to the extent that derivatives are used, the Fund will depend on the subadviser’s ability to analyze and manage derivatives transactions. The prices of derivatives may move in unexpected ways, especially in abnormal market conditions. Some derivatives are “leveraged” and therefore may magnify or otherwise increase investment losses to the Fund. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Other risks arise from the potential inability to terminate or sell derivatives positions. A liquid secondary market may not always exist for the Fund's derivatives positions. In fact, many over-the-counter derivative instruments will lack liquidity beyond the counterparty to the instrument. Over-the-counter derivative instruments also involve the risk that the other party will not meet its obligations to the Fund.

The US Government and foreign governments have adopted (and may adopt further) regulations governing derivatives markets, including mandatory clearing of certain derivatives, margin and reporting requirements. The ultimate impact of the regulations remains unclear. Additional regulation of derivatives may make derivatives more costly, limit their availability or utility, or otherwise adversely affect their performance or disrupt markets.

Economic and Market Events Risk. Events in the US and global financial markets, including actions taken by the US Federal Reserve or foreign central banks to stimulate or stabilize economic growth, may at times result in unusually high market volatility, which could negatively impact performance. Relatively reduced liquidity in credit and fixed income markets could adversely affect issuers worldwide.

Emerging Markets Risk. The risks of foreign investments are greater for investments in or exposed to emerging markets. Emerging market countries typically have economic and political systems that are less fully developed, and can be expected to be less stable, than those of more developed countries. For example, the economies of such countries can be subject to rapid and unpredictable rates of inflation or deflation. Low trading volumes may result in a lack of liquidity and price volatility. Emerging market countries may have policies that restrict investment by non-US investors, or that prevent non-US investors from withdrawing their money at will. Countries with emerging markets can be found in regions such as Asia, Latin America, Eastern Europe and Africa.

The Fund may invest in some emerging markets through trading structures or protocols that subject it to risks such as those associated with illiquidity, custody of assets, different settlement and clearance procedures and asserting legal title under a developing legal and regulatory regime to a greater degree than in developed markets or even in other emerging markets.

Foreign Securities Risk. Investments in securities of non-US issuers (including those denominated in US dollars) generally involve more risk than investing in securities of US 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 US. Foreign legal systems generally have fewer regulatory requirements than the US legal system. In general, less information is publicly available about non-US companies than about US companies. Non-US companies generally are not subject to the same accounting, auditing, and financial reporting standards as are US 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-US 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-US currency, confiscatory taxation and adverse diplomatic developments. Special US tax considerations may apply.

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.

Interest Rate Risk. The value of your investment may go down when interest rates rise. A rise in rates tends to have a greater impact on the prices of longer term or duration debt securities. When interest rates fall, the issuers of debt obligations may prepay principal more quickly than expected, and the Fund may be required to reinvest the proceeds at a lower interest rate. This is referred to as “prepayment risk.” When interest rates rise, debt obligations may be repaid more slowly than expected, and the value of the Fund's holdings may fall sharply. This is referred to as “extension risk.” The Fund may face a heightened level of interest rate risk as a result of the US Federal Reserve Board’s rate-setting policies. The Fund may lose money if short-term or long-term interest rates rise sharply or in a manner not anticipated by the subadviser.

Junk Bonds Risk. High-yield, high-risk bonds have predominantly speculative characteristics, including particularly high credit risk. Junk bonds tend to have lower market liquidity than higher-rated securities. The liquidity of particular issuers or industries within a particular investment category may shrink or disappear suddenly and without warning. The non-investment grade bond market can experience sudden and sharp price swings and become illiquid due to a variety of factors, including changes in economic forecasts, stock market activity, large sustained sales by major investors, a high profile default or a change in the market's psychology.

Liquidity Risk. Liquidity risk is the risk that the Fund could not meet requests to redeem shares issued by the Fund without significant dilution of remaining investors' interests in the Fund. The Fund may invest in instruments that trade in lower volumes and are more illiquid than other investments. If the Fund is forced to sell these investments to pay redemption proceeds or for other reasons, the Fund may lose money. In addition, when there is no willing buyer and investments cannot be readily sold at the desired time or price, the Fund may have to accept a lower price or may not be able to sell the instrument at all. The reduction in dealer market-making capacity in the fixed income markets that has occurred in recent years also has the potential to reduce liquidity. An inability to sell a portfolio position can adversely affect the Fund's value or prevent the Fund from being able to take advantage of other investment opportunities.

Management Risk. The value of your investment may decrease if judgments by the subadviser about the attractiveness, value or market trends affecting a particular security, industry or sector or about market movements are incorrect.

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.

Performance.

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 and a group of similar mutual funds. 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. Updated Fund performance information is available online at www.pgiminvestments.com.

Annual Total Returns (Class Z Shares)1

Best Quarter:		Worst Quarter:
2.71%	3rd Quarter 2016	-2.50%	4th Quarter 2018

Average Annual Total Returns % (including sales charges) (as of 12-31-18)

Average Annual Total Returns - PGIM Short Duration High Yield Income Fund	One Year	Five Years	Since Inception		Inception Date
Class A Shares	(1.38%)	2.53%	2.95%		Oct. 26, 2012
Class C Shares	(0.81%)	2.23%	2.55%		Oct. 26, 2012
Class R6 Shares	1.31%		3.48%		Oct. 27, 2014
Class Z Shares	1.14%	3.24%	3.59%		Oct. 26, 2012
Class Z Shares | Return After Taxes on Distributions	(1.08%)	0.60%	0.97%		Oct. 26, 2012
Class Z Shares | Return After Taxes on Distribution and Sale of Fund Shares	0.69%	1.26%	1.54%		Oct. 26, 2012
Bloomberg Barclays US High Yield Ba/B Rated 1-5 Year 1% Capped Index (reflects no deduction for fees, expenses or taxes)	0.65%	3.16%	4.01%	[1]
Lipper High Yield Funds Average (reflects no deduction for sales charges or taxes)	(2.84%)	2.65%	3.63%	[1]

° 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.

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

[1] PGIM Investments LLC (PGIM Investments) has contractually agreed, through December 31, 2020, to limit Total Annual Fund Operating Expenses after fee waivers and/or expense reimbursements to 1.00% of average daily net assets for Class A shares, 1.75% of average daily net assets for Class C shares, 0.75% of average daily net assets for Class Z shares, and 0.70% of average daily net assets for Class R6 shares. This contractual waiver 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 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 waiver may not be terminated prior to December 31, 2020 without the prior approval of the Fund’s Board of Directors.

[1] The total return for Class Z shares from January 1, 2019 to September 30, 2019 was 9.30%.

[1] Since Inception returns for the Index and the Lipper Average are measured from the closest month-end to the inception date for Class A shares, Class C shares and Class Z shares.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Aug. 31, 2019
Registrant Name	dei_EntityRegistrantName	PRUDENTIAL INVESTMENT PORTFOLIOS, INC. 15
Central Index Key	dei_EntityCentralIndexKey	0000278187
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Oct. 29, 2019
Document Effective Date	dei_DocumentEffectiveDate	Oct. 29, 2019
Prospectus Date	rr_ProspectusDate	Oct. 29, 2019
Entity Inv Company Type	dei_EntityInvCompanyType	N-1A