Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	The Prudential Series Fund
Prospectus Date	rr_ProspectusDate	May 01, 2025
PSF PGIM 50 50 Balanced Portfolio
Risk Return Abstract	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<span style="color:#545454;font-family:Arial;font-size:14pt;">SUMMARY: PSF PGIM 50/50 BALANCED PORTFOLIO </span>
Objective [Heading]	rr_ObjectiveHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">INVESTMENT OBJECTIVE</span>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Portfolio is to seek total investment return consistent with a conservatively managed diversified portfolio.
Expense [Heading]	rr_ExpenseHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">PORTFOLIO FEES AND EXPENSES</span>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	The table below shows the fees and expenses that you may pay if you invest in shares of the Portfolio. The table does not include Contract charges. Because Contract charges are not included, the total fees and expenses that you will incur will be higher than the fees and expenses set forth in the table. See your Contract prospectus for more information about Contract charges.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</span>
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<span style="font-family:Arial;font-size:10pt;font-weight:bold;">Portfolio Turnover. </span>
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Portfolio 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. These costs, which are not reflected in annual portfolio operating expenses or in the example, affect the Portfolio's performance. During the Portfolio's most recent fiscal year ended December 31, the Portfolio's portfolio turnover rate was 60% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	60.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Example. </span>
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds. The table does not include Contract charges. Because Contract charges are not included, the total fees and expenses that you will incur will be higher than the fees and expenses set forth in the example. See your Contract prospectus for more information about Contract charges. The example assumes that you invest $10,000 in the Portfolio for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">INVESTMENTS, RISKS AND PERFORMANCE</span><span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Principal Investment Strategies. </span>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Portfolio invests in a mix of equity and equity-related securities, debt obligations and money market instruments. Under normal market conditions, the Portfolio typically invests approximately 50% of its assets in equity and equity-related securities (with a range of 15% to 75%) and approximately 50% of its assets in debt obligations and money market instruments (with a range of 25% to 85%). The percentage of Portfolio assets in each category is adjusted depending on the Portfolio's expectation regarding the different markets. The Portfolio may invest in foreign securities. The equity portion of the Portfolio is generally managed as an index portfolio, designed to perform similarly to the holdings of the S&P 500 Index. Under normal circumstances, at least 80% of the fixed income portion of the Portfolio may be invested in intermediate and long-term debt obligations that are rated investment grade by the major ratings services, or, if unrated, considered to be of comparable quality, and high-quality money market instruments. Likewise, 20% of the fixed income portion of the Portfolio may be invested in high yield/high-risk debt securities rated as low as BB, Ba or lower by a major rating service at the time they are purchased (commonly known as “junk bonds”). The Portfolio may also invest in instruments that are not rated, but which are deemed to be of comparable quality to the instruments described above. The Portfolio may also invest up to 30% of its total assets in foreign equity and debt securities that are not denominated in the US dollar. Up to 20% of the Portfolio’s total assets may be invested in debt securities that are issued outside the US by foreign or US issuers, provided the securities are denominated in US dollars. For these purposes, the Portfolio does not consider American Depositary Receipts as foreign securities. The Portfolio’s investment in debt securities may include investments in mortgage-related securities and asset-backed securities. Up to 20% of the fixed income portion of the Portfolio may also be invested in collateralized debt obligations, including collateralized loan obligations and other credit-related asset-backed securities.
Risk [Heading]	rr_RiskHeading	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Principal Risks of Investing in the Portfolio.</span>
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	<span style="font-family:Arial;font-size:10pt;font-weight:bold;">Past Performance.</span>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and table provide some indication of the risks of investing in the Portfolio by showing changes in the Portfolio's performance from year to year and by showing how the Portfolio's average annual returns for 1, 5, and 10 years compare with those of a broad-based securities market index that reflects the performance of the overall market applicable to the Portfolio and an additional index that represents the market sectors in which the Portfolio primarily invests.Past performance does not mean that the Portfolio will achieve similar results in the future.The annual returns and average annual returns shown in the chart and table are after deduction of expenses and do not include Contract charges. If Contract charges were included, the returns shown would have been lower than those shown. Consult your Contract prospectus for information about Contract charges.The table also demonstrates how the Portfolio's average annual returns compare to the returns of a custom blended index which consists of the S&P 500 Index (50%), the Bloomberg US Aggregate Bond Index (40%), and the FTSE 3-Month US Treasury Bill Index (10%). The Portfolio’s investment manager determined the weight of each index comprising the custom blended index.Annual return information in the bar chart is provided only for Class I shares. Because all of the Portfolio’s shares are invested in the same portfolio of securities, annual returns for Class III shares would be lower because Class III shares do not have the same expenses as Class I shares.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	<span style="font-family:Arial;font-size:10pt;">The bar chart and table provide some indication of the risks of investing in the Portfolio by showing changes in the Portfolio's performance from year to year and by showing how the Portfolio's average annual returns for 1, 5, and 10 years compare with those of a broad-based securities market index that reflects the performance of the overall market applicable to the Portfolio and an additional index that represents the market sectors in which the Portfolio primarily invests.</span>
Performance Additional Market Index [Text]	rr_PerformanceAdditionalMarketIndex	<span style="color:#000000;font-family:Arial;font-size:10pt;">The table also demonstrates how the Portfolio's average annual returns compare to the returns of a custom blended index which consists of the S&P 500 Index (50%), the Bloomberg US Aggregate Bond Index (40%), and the FTSE 3-Month US Treasury Bill Index (10%). The Portfolio’s investment manager determined the weight of each index comprising the custom blended index.</span>
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	<span style="font-family:Arial;font-size:10pt;">Past performance does not mean that the Portfolio will achieve similar results in the future.</span>
Bar Chart [Heading]	rr_BarChartHeading	Annual Total Returns (Class I Shares)
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	<span style="color:#000000;font-family:Arial;font-size:10pt;">The annual returns and average annual returns shown in the chart and table are after deduction of expenses and do not include Contract charges. If Contract charges were included, the returns shown would have been lower than those shown.</span>
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter:Worst Quarter:12.06%2nd Quarter 2020-10.99%1st Quarter 2020
Performance Table Heading	rr_PerformanceTableHeading	<span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;">Average Annual Total Returns (For the periods ended December 31, 2024)</span>
PSF PGIM 50 50 Balanced Portfolio | Risk Lose Money [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	The relative significance of the risks summarized below may change over time. All investments have risks to some degree, and it is possible that you could lose money by investing in the Portfolio.
PSF PGIM 50 50 Balanced Portfolio | Risk Not Insured Depository Institution [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the Portfolio is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
PSF PGIM 50 50 Balanced Portfolio | Equity Securities Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Equity Securities Risk. The value of a particular stock or equity-related security held by the Portfolio could fluctuate, perhaps greatly, in response to a number of factors, such as changes in the issuer’s financial condition or the value of the equity markets or a sector of those markets. Such events may result in losses to the Portfolio. In addition, due to decreases in liquidity, the Portfolio may be unable to sell its securities holdings within a reasonable time at the price it values the security or at any price.
PSF PGIM 50 50 Balanced Portfolio | Fixed Income Securities Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Fixed Income Securities Risk. Investment in fixed income securities involves a variety of risks, including that: an issuer or guarantor of a security will be unable or unwilling to pay obligations when due; due to decreases in liquidity, the Portfolio may be unable to sell its securities holdings within a reasonable time at the price it values the security or at any price; and the Portfolio’s investment may decrease in value when interest rates rise. Volatility in interest rates and in fixed income markets may increase the risk that the Portfolio’s investment in fixed income securities will go down in value. In recent years, the Federal Open Market Committee (FOMC) began implementing increases to the federal funds interest rate and there may be further rate increases. To the extent rates increase substantially and/or rapidly, a Portfolio with significant investment in fixed income investments may be subject to significant losses. Changes in interest rates may also affect the liquidity of the Portfolio’s investments in fixed income securities.
PSF PGIM 50 50 Balanced Portfolio | Index Tracking Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Index Tracking Risk. The Portfolio’s ability to track the performance and/or holdings and weightings of an index with a high degree of correlation may be affected by, among other things, transaction costs and shareholder purchases and redemptions.
PSF PGIM 50 50 Balanced Portfolio | High Yield Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	High Yield Risk. Investments in fixed income instruments rated below investment grade and unrated instruments of similar credit quality (i.e., “high yield securities” or “junk bonds”) may be more sensitive to interest rate, credit, call, and liquidity risks than investments in investment grade securities, and have predominantly speculative characteristics. An economic downturn generally leads to a higher non-payment rate, and a high yield investment may lose significant value before a default occurs.
PSF PGIM 50 50 Balanced Portfolio | Foreign Investment Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Foreign Investment Risk. Foreign markets tend to be more volatile than US markets and are generally not subject to regulatory requirements comparable to those in the US. Foreign securities include investments in securities of foreign issuers denominated in foreign currencies, as well as securities of foreign issuers denominated in US dollars and American Depositary Receipts. Foreign investment risk includes the risk that: changes in currency exchange rates may affect the value of foreign securities held by the Portfolio; foreign markets generally are more volatile than, and generally are not subject to regulatory requirements comparable to, US markets; foreign financial reporting and tax standards usually differ from those in the US; foreign exchanges are often less liquid than US markets; political or social developments may adversely affect the value of foreign securities; foreign holdings may be subject to special taxation and limitations on repatriating investment proceeds; and certain events in foreign markets may adversely affect foreign and domestic issuers, including, among others, military conflict, geopolitical developments, interruptions in the global supply chain, natural disasters, and outbreaks of infectious diseases.
PSF PGIM 50 50 Balanced Portfolio | Asset Backed And Or Mortgage Backed Securities Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Asset-Backed and/or Mortgage-Backed Securities Risk. Asset-backed and mortgage-backed securities primarily are fixed income securities that represent an interest in an underlying pool of assets, such as credit card receivables or, in the case of mortgage-backed securities, mortgage loans. Like fixed income securities, asset-backed and mortgage-backed securities are subject to interest rate risk, liquidity risk, and credit risk, which may be heightened in connection with investments in loans to “subprime” borrowers. Certain asset-backed and mortgage-backed securities are subject to the risk that those obligations will be repaid sooner than expected or later than expected, either of which may result in lower-than-expected returns. Mortgage-backed securities, because they are backed by mortgage loans, are also subject to risks related to real estate, and securities backed by private-issued mortgages may experience higher rates of default on the underlying mortgages than securities backed by government-issued mortgages.
PSF PGIM 50 50 Balanced Portfolio | Collateralized Debt Obligations Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Collateralized Debt Obligations (CDO) Risk: The risks of an investment in a CDO, which can include collateralized loan obligations (CLOs), depend largely on the quality and type of the collateral and the tranche of the CDO in which the Portfolio invests. Investments in CDOs may be illiquid. In addition to the risks associated with debt instruments (e.g., interest rate risk and credit risk), CDOs carry additional risks including, but not limited to: (i) the possibility that distributions from collateral will not be adequate to make interest or other payments; (ii) the quality of the collateral may decline in value or default; (iii) the possibility that the Portfolio may invest in CDOs that are subordinate to other classes of the issuer’s securities; and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results.
PSF PGIM 50 50 Balanced Portfolio | Credit Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Credit Risk. This is the risk that the issuer, the guarantor, or the insurer of a fixed income security, the counterparty to an investment or derivatives contract, or obligor of an obligation underlying an asset-backed security may be unable or unwilling to make timely principal and interest payments or to otherwise honor its obligations. Litigation, legislation or other political events, business or economic conditions, or the bankruptcy of the issuer could have a significant effect on an issuer’s or obligor’s ability to make payments of principal and/or interest. The lower the credit quality of a bond, the more sensitive it is to credit risk, and the credit quality of an investment can deteriorate rapidly.
PSF PGIM 50 50 Balanced Portfolio | Currency Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Currency Risk. Currency risk is the risk that fluctuations in exchange rates will adversely affect the market value of a Portfolio’s investments, including the risk that the currencies in which the Portfolio’s investments are traded or in which the Portfolio receives income will decline in value relative to the US dollar. The overall impact on a Portfolio’s holdings can be significant, and long-lasting, depending on the currencies represented in the portfolio and how each foreign currency appreciates or depreciates in relation to the US dollar and whether currency positions are hedged. Further, since exchange rate movements are volatile, a Portfolio’s attempt at hedging could be unsuccessful, and it is not possible to effectively hedge the currency risks of many emerging market countries.
PSF PGIM 50 50 Balanced Portfolio | Derivatives Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Derivatives Risk. A derivative is a financial contract, the value of which depends upon, or is derived from, the value of one or more underlying investments, such as an asset, reference rate, or index. The use of derivatives is a highly specialized activity that involves a variety of risks in addition to and greater than those associated with investing directly in securities, including the risk that: the party on the other side of a derivative transaction will be unable to honor its financial obligation; leverage created by investing in derivatives may result in losses to the Portfolio; derivatives may be difficult or impossible for the Portfolio to buy or sell at an opportune time or price, and may be difficult to terminate or otherwise offset; derivatives used for hedging may reduce or magnify losses but also may reduce or eliminate gains; the price of derivatives may be more volatile than the prices of traditional equity and debt securities; and changes in a derivative’s value may not correlate perfectly with the assets, rates, indices or instruments it is designed to hedge or closely track. The Portfolio is subject to a derivatives risk management program, which may limit the ability of the Portfolio to invest in derivatives.
PSF PGIM 50 50 Balanced Portfolio | Equity And Equity Related Securities Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Equity and Equity-Related Securities Risk. From time to time, the Portfolio may purchase or hold equity or equity-related securities incidental to the purchase or ownership of fixed income instruments or in connection with a reorganization of a borrower. These include common stock, preferred stock or securities that may be converted into or exchanged for common stock—known as convertible securities—like rights and warrants. The value of a particular equity or equity-related security held by a Portfolio could fluctuate, perhaps greatly, in response to a number of factors, such as changes in the issuer’s financial condition, changes in interest rates, or heightened levels of inflation. Such events may result in losses to the Portfolio. In addition, due to decreases in liquidity, the Portfolio may be unable to sell its securities holdings within a reasonable time at the price it values the security or at any price.
PSF PGIM 50 50 Balanced Portfolio | Expense Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Expense Risk. The actual cost of investing in the Portfolio may be higher than the expenses shown in the “Annual Portfolio Operating Expenses” table above for a variety of reasons, including, for example, if the Portfolio’s average net assets decrease.
PSF PGIM 50 50 Balanced Portfolio | Interest Rate Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Interest Rate Risk. The value of your investment may go down when interest rates rise. A rise in interest rates tends to have a greater impact on the prices of longer term or duration securities. When interest rates fall, the issuers of debt obligations may prepay principal more quickly than expected, and the Portfolio 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 Portfolio's holdings may fall sharply. This is referred to as “extension risk.” As interest rates rise, the value of fixed income investments typically decreases and there is risk that rates across the financial system also may rise. To the extent rates increase substantially and/or rapidly, a Portfolio with significant investment in fixed income investments may be subject to significant losses. The Portfolio may lose money if short-term or long-term interest rates rise sharply or in a manner not anticipated by the subadviser. Decreases in interest rates create the potential for a decrease in income earned by a Portfolio. During periods of very low or negative interest rates, the Portfolio may be unable to maintain positive returns. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from Portfolio performance.
PSF PGIM 50 50 Balanced Portfolio | Large Company Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Large Company Risk. Large-capitalization stocks as a group could fall out of favor with the market, causing the Portfolio to underperform investments that focus on small- or medium-capitalization stocks. Larger, more established companies may be slow to respond to challenges and may grow more slowly than smaller companies. Investments in securities of certain issuers with the largest market capitalizations can result in greater investment exposure to a limited number of issuers and sectors, primarily the technology sector, which can result in greater losses in the event of a market downturn or deteriorating fundamentals in those issuers or sectors.
PSF PGIM 50 50 Balanced Portfolio | Liquidity And Valuation Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Liquidity and Valuation Risk. The Portfolio may hold one or more securities for which there are no or few buyers and sellers or the securities are subject to limitations on transfer. The Portfolio may be unable to sell those portfolio holdings at the desired time or price, and may have difficulty determining the value of such securities for the purpose of determining the Portfolio’s net asset value. In such cases, investments owned by the Portfolio may be valued at fair value pursuant to policies and procedures adopted and implemented by the Manager. No assurance can be given that the fair value prices accurately reflect the value of the security. The Portfolio is subject to a liquidity risk management program, which limits the ability of the Portfolio to invest in illiquid investments.
PSF PGIM 50 50 Balanced Portfolio | Loan Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Loan Risk. A Portfolio's ability to receive payments of principal and interest and other amounts in connection with loans (whether through participations, assignments or otherwise) will depend primarily on the financial condition of the borrower. The failure by the Portfolio to receive scheduled interest or principal payments on a loan because of a default, bankruptcy or any other reason would adversely affect the income of the Portfolio and would likely reduce the value of its assets. Even with loans secured by collateral, there is the risk that the value of the collateral may decline, may be insufficient to meet the obligations of the borrower, or be difficult to liquidate. In the event of a default, the Portfolio may have difficulty collecting on any collateral and would not have the ability to collect on any collateral for an uncollateralized loan. Further, the Portfolio's access to collateral, if any, may be limited by bankruptcy laws. Loans that are secured and senior to other debtholders of a borrower tend to have more favorable loss recovery rates as compared to more junior types of below investment grade debt obligations, and junior loans can involve a higher degree of risk than more senior loans. In addition, loan participations generally are subject to restrictions on transfer, and only limited opportunities may exist to sell loan participations in secondary markets. As a result, it may be difficult for the Portfolio to value loans or sell loans at an acceptable price when it wants to sell them. Loans trade in an over-the-counter market, and confirmation and settlement, which are effected through standardized procedures and documentation, may have an impact on the length and timing of completing trades. To the extent the Portfolio invests in loans of non-US issuers, the risks of investing in non-US issuers are applicable. Loans may not be considered to be “securities” and as a result may not benefit from the protections of the federal securities laws, including anti-fraud protections and those with respect to the use of material non-public information, so that purchasers, such as the Portfolio, may not have the benefit of these protections.
PSF PGIM 50 50 Balanced Portfolio | Market And Management Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market and Management Risk. Markets in which the Portfolio invests may experience volatility and go down in value, and possibly sharply and unpredictably in short periods of time. Investment techniques, risk analyses, and investment strategies, which may include quantitative models or methods, used by a subadviser in making investment decisions for the Portfolio are subject to human error and may not produce the intended or desired results. While a Portfolio Manager or Subadviser(s) may make efforts to control the risks associated with market changes, and may attempt to identify changes as they occur, market environment changes can be sudden and extreme. The value of the Portfolio’s investments may be negatively affected by the occurrence of domestic or global events, including war, terrorism, significant or unexpected failures, near-failures or credit downgrades of key institutions, unexpected changes in the prices of key commodities, government actions, environmental disasters, natural disasters, sanctions, cybersecurity events, supply chain disruptions, political or civil instability, and public health emergencies, among others. Such events may reduce consumer demand or economic output, result in market closures, travel restrictions or quarantines, and significantly adversely impact the economy. These events can adversely affect the liquidity and volatility of investments held by the Portfolio, and there is no guarantee that the investment objective of the Portfolio will be achieved. In periods of market volatility and/or declines, the Portfolio may experience high levels of shareholder redemptions, and may have to sell securities at times when it would otherwise not do so, and at unfavorable prices.
PSF PGIM 50 50 Balanced Portfolio | Prepayment Or Call Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Prepayment or Call Risk. Prepayment or call risk is the risk that issuers will prepay fixed-rate obligations held by the Portfolio when interest rates fall, forcing a Portfolio to reinvest in obligations with lower interest rates than the original obligations. Mortgage-related securities and asset-backed securities are particularly subject to prepayment risk.
PSF PGIM 50 50 Balanced Portfolio | Regulatory Risk [Member]
Risk Return Abstract	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Regulatory Risk. The Portfolio is subject to a variety of laws and regulations which govern its operations. The Portfolio is subject to regulation by the Securities and Exchange Commission (the SEC), and depending on the Portfolio, the Commodity Futures Trading Commission (the CFTC). Similarly, the businesses and other issuers of the securities and other instruments in which the Portfolio invests are also subject to considerable regulation. Changes in laws and regulations may materially impact the Portfolio, a security, business, sector, or market.
PSF PGIM 50 50 Balanced Portfolio | Class I
Risk Return Abstract	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.55%
+ Distribution and/or Service Fees (12b-1 Fees)	rr_DistributionAndService12b1FeesOverAssets
+ Other Expenses	rr_OtherExpensesOverAssets	0.03%
= Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	0.58%
1 Year	rr_ExpenseExampleYear01	$ 59
3 Years	rr_ExpenseExampleYear03	186
5 Years	rr_ExpenseExampleYear05	324
10 Years	rr_ExpenseExampleYear10	726
1 Year	rr_ExpenseExampleNoRedemptionYear01	59
3 Years	rr_ExpenseExampleNoRedemptionYear03	186
5 Years	rr_ExpenseExampleNoRedemptionYear05	324
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 726
2015	rr_AnnualReturn2015	0.40%
2016	rr_AnnualReturn2016	7.28%
2017	rr_AnnualReturn2017	12.37%
2018	rr_AnnualReturn2018	(2.47%)
2019	rr_AnnualReturn2019	18.49%
2020	rr_AnnualReturn2020	11.43%
2021	rr_AnnualReturn2021	13.38%
2022	rr_AnnualReturn2022	(14.70%)
2023	rr_AnnualReturn2023	15.45%
2024	rr_AnnualReturn2024	13.03%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0.00pt;">Best Quarter:</span>
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	12.06%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	<span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0.00pt;">Worst Quarter:</span>
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(10.99%)
One Year	rr_AverageAnnualReturnYear01	13.03%
Five Years	rr_AverageAnnualReturnYear05	7.06%
Ten Years	rr_AverageAnnualReturnYear10	7.00%
SinceInception	rr_AverageAnnualReturnSinceInception
PSF PGIM 50 50 Balanced Portfolio | Class III
Risk Return Abstract	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.55%
+ Distribution and/or Service Fees (12b-1 Fees)	rr_DistributionAndService12b1FeesOverAssets	0.25%
+ Other Expenses	rr_OtherExpensesOverAssets	0.03%
= Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	0.83%
1 Year	rr_ExpenseExampleYear01	$ 85
3 Years	rr_ExpenseExampleYear03	265
5 Years	rr_ExpenseExampleYear05	460
10 Years	rr_ExpenseExampleYear10	1,025
1 Year	rr_ExpenseExampleNoRedemptionYear01	85
3 Years	rr_ExpenseExampleNoRedemptionYear03	265
5 Years	rr_ExpenseExampleNoRedemptionYear05	460
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,025
One Year	rr_AverageAnnualReturnYear01	12.73%
Five Years	rr_AverageAnnualReturnYear05
Ten Years	rr_AverageAnnualReturnYear10
SinceInception	rr_AverageAnnualReturnSinceInception	4.85%
InceptionDate	rr_AverageAnnualReturnInceptionDate	Apr. 26, 2021
PSF PGIM 50 50 Balanced Portfolio | S&P 500 Index (reflects no deduction for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	25.02%
Five Years	rr_AverageAnnualReturnYear05	14.53%
Ten Years	rr_AverageAnnualReturnYear10	13.10%
SinceInception	rr_AverageAnnualReturnSinceInception	11.45%	[1]
PSF PGIM 50 50 Balanced Portfolio | Custom Blended Index (reflects no deduction for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	13.12%
Five Years	rr_AverageAnnualReturnYear05	7.52%
Ten Years	rr_AverageAnnualReturnYear10	7.41%
SinceInception	rr_AverageAnnualReturnSinceInception	5.45%	[1]

[1] Since Inception returns for the Indexes is measured from the month-end closest to the Portfolio's inception date.