XML 13 R9.htm IDEA: XBRL DOCUMENT v2.4.0.6
Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Oct. 31, 2011
Registrant Name dei_EntityRegistrantName FRANKLIN INVESTORS SECURITIES TRUST
Central Index Key dei_EntityCentralIndexKey 0000809707
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Feb. 24, 2012
Document Effective Date dei_DocumentEffectiveDate Mar. 01, 2012
Prospectus Date rr_ProspectusDate Mar. 01, 2012
Risk/Return [Heading] rr_RiskReturnHeading Fund Summary
Franklin Adjustable U.S. Government Securities Fund
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock High level of current income, while providing lower volatility of principal than a fund that invests in fixed-rate securities.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds. More information about these and other discounts is available from your financial professional and under “Your Account” on page 106 in the Fund's Prospectus and under “Buying and Selling Shares” on page 70 of the Fund’s Statement of Additional Information.
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)
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 most recent fiscal year, the Fund's portfolio turnover rate was 19.65% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 19.65%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption If you do not sell your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests at least 80% of its net assets in “adjustable-rate U.S. government mortgage securities.” “Adjustable-rate U.S. government mortgage securities” include adjustable-rate mortgage securities (ARMS) and other mortgage-backed securities with interest rates that adjust periodically to reflect prevailing market interest rates, which are issued or guaranteed by the U.S. government, its agencies or instrumentalities, including government sponsored entities.

Mortgage-backed securities represent an interest in a pool of mortgage loans made by banks and other financial institutions to finance purchases of homes, commercial buildings and other real estate. As the underlying mortgage loans are paid off, investors receive periodic principal and interest payments as well as any unscheduled principal prepayments on the underlying mortgage loans. The mortgage-backed securities purchased by the Fund include bonds and notes issued or guaranteed by the Government National Mortgage Association (Ginnie Mae) and U.S. government-sponsored entities, such as Fannie Mae and Freddie Mac. The Fund currently focuses on mortgage-backed securities issued or guaranteed by Fannie Mae and Freddie Mac.

Government agency or instrumentality issues have different levels of credit support. Ginnie Mae pass-through mortgage certificates are backed by the full faith and credit of the U.S. government. U.S. government-sponsored entities, such as Fannie Mae and Freddie Mac, may be chartered by Acts of Congress, but their securities are neither issued nor guaranteed by the U.S. government. Although the U.S. government has recently provided financial support to Fannie Mae and Freddie Mac, no assurance can be given that the U.S. government will continue to do so. Accordingly, securities issued by Fannie Mae and Freddie Mac may involve a risk of non-payment of principal and interest. Investors should remember that guarantees of timely prepayment of principal and interest do not apply to the market prices and yields of the securities or to the net asset value or performance of the Fund, which will vary with changes in interest rates and other market conditions. Any downgrade of the credit rating of the securities issued by the U.S. government may result in a downgrade of securities issued by its agencies or instrumentalities, including government-sponsored entities.

These periodic interest rate adjustments may help keep the prices of these securities relatively stable when compared with the prices of fixed-rate securities, which generally fall when interest rates rise. Adjustable-rate securities, however, frequently limit the maximum amount by which the interest rate may change up or down. The Fund, therefore, may not benefit from increases in interest rates if interest rates exceed a security’s maximum allowable periodic or lifetime limits. During periods of falling interest rates, the interest rates on these securities may reset downward, resulting in a lower yield for the Fund.

The Fund may invest up to 20% of its net assets in other securities, including fixed-rate mortgage-backed securities, direct obligations of the U.S. government, such as Treasury bills, bonds or notes, and in repurchase agreements collateralized by U.S. government or government agency securities.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal market conditions, the Fund invests at least 80% of its net assets in “adjustable-rate U.S. government mortgage securities.”
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.

Interest Rate

When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. In general, securities with longer maturities are more sensitive to these interest rate changes.

Mortgage-Backed Securities

Mortgage-backed securities differ from conventional debt securities because principal is paid back periodically over the life of the security rather than at maturity. The Fund may receive unscheduled prepayments of principal due to voluntary prepayments, refinancings or foreclosures on the underlying mortgage loans. Because of repayments, mortgage-backed securities may be less effective than some other types of debt securities as a means of "locking in" long-term interest rates and may have less potential for capital appreciation during periods of falling interest rates. A reduction in the anticipated rate of principal prepayments, especially during periods of rising interest rates, may increase or extend the effective maturity of mortgage-backed securities, making them more sensitive to interest rate changes, subject to greater price volatility, and more susceptible than some other debt securities to a decline in market value when interest rates rise.

Adjustable Rate Securities

Because changes in interest rates on adjustable rate securities may lag behind changes in market rates, the value of such securities may decline during periods of rising interest rates until their interest rates reset to market rates. If the changes in market rates are substantial, the interest rate on an adjustable rate security may not reset during a single adjustment period. Lifetime limits on resets may also prevent their rates from adjusting to market rates.

During periods of declining interest rates, because the interest rates on adjustable rate securities generally reset downward, their market value is unlikely to rise to the same extent as the value of comparable fixed rate securities.

Credit

An issuer of debt securities may fail to make interest payments and repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's credit rating may affect a security's value. While securities issued by Ginnie Mae are backed by the full faith and credit of the U.S. government, not all securities of the various U.S. government agencies are, including those of Fannie Mae and Freddie Mac. Also guarantees of principal and interest do not apply to market prices, yields or the Fund’s share price. While the U.S. government has recently provided financial support to Fannie Mae and Freddie Mac, no assurance can be given that the U.S. government will always do so, since the U.S. government is not so obligated by law.

Income

Because the Fund can only distribute what it earns, the Fund's distributions to shareholders may decline when prevailing interest rates fall or when the Fund experiences defaults on debt securities it holds.

Management

The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.

Market

The market values of securities owned by the Fund will go up and down, sometimes rapidly or unpredictably. A security’s market value may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all securities. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading CLASS A ANNUAL TOTAL RETURNS
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:Q1'091.72%
Worst Quarter:Q2'04-0.37%
Performance Table Heading rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS
(figures reflect sales charges)

For the periods ended December 31, 2011
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

Historical performance for Advisor Class shares prior to their inception is based on the performance of Class A shares. Advisor Class performance has been adjusted to reflect differences in sales charges between classes.

The 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 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 A and after-tax returns for other classes will vary.
Franklin Adjustable U.S. Government Securities Fund | Barclays Capital U.S. Government Index: 1-2 Year Component
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.01%
5 Years rr_AverageAnnualReturnYear05 3.28%
10 Years rr_AverageAnnualReturnYear10 3.04%
Franklin Adjustable U.S. Government Securities Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.21%
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.86% [1]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 311
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 493
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 691
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,262
Annual Return 2002 rr_AnnualReturn2002 3.41%
Annual Return 2003 rr_AnnualReturn2003 1.23%
Annual Return 2004 rr_AnnualReturn2004 1.79%
Annual Return 2005 rr_AnnualReturn2005 2.06%
Annual Return 2006 rr_AnnualReturn2006 4.15%
Annual Return 2007 rr_AnnualReturn2007 5.03%
Annual Return 2008 rr_AnnualReturn2008 3.58%
Annual Return 2009 rr_AnnualReturn2009 4.35%
Annual Return 2010 rr_AnnualReturn2010 1.29%
Annual Return 2011 rr_AnnualReturn2011 1.72%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 1.72%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.37%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (0.53%)
5 Years rr_AverageAnnualReturnYear05 2.72%
10 Years rr_AverageAnnualReturnYear10 2.61%
Franklin Adjustable U.S. Government Securities Fund | Class A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.16%)
5 Years rr_AverageAnnualReturnYear05 1.57%
10 Years rr_AverageAnnualReturnYear10 1.38%
Franklin Adjustable U.S. Government Securities Fund | Class A | After Taxes on Distributions and Sales
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.35%)
5 Years rr_AverageAnnualReturnYear05 1.65%
10 Years rr_AverageAnnualReturnYear10 1.49%
Franklin Adjustable U.S. Government Securities Fund | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.65%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.21%
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.26% [1]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 228
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 400
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 692
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,523
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 128
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 400
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 692
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,523
1 Year rr_AverageAnnualReturnYear01 0.20%
5 Years rr_AverageAnnualReturnYear05 2.75%
10 Years rr_AverageAnnualReturnYear10 2.40% [2]
Franklin Adjustable U.S. Government Securities Fund | Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.40%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.21%
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.61% [1]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 62
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 195
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 340
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 762
1 Year rr_AverageAnnualReturnYear01 1.97%
5 Years rr_AverageAnnualReturnYear05 3.39%
10 Years rr_AverageAnnualReturnYear10 2.96% [3]
Franklin Floating Rate Daily Access Fund
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock High level of current income. A secondary goal is preservation of capital.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds. More information about these and other discounts is available from your financial professional and under “Your Account” on page 106 in the Fund's Prospectus and under “Buying and Selling Shares” on page 70 of the Fund’s Statement of Additional Information.
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)
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 most recent fiscal year, the Fund's portfolio turnover rate was 126.99% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 126.99%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects adjustments made to the Fund's operating expenses due to the fee waiver and/or expense reimbursement by the investment manager and/or administrator for the 1 Year numbers only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption If you do not sell your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund normally invests at least 80% of its net assets in income-producing floating interest rate corporate loans and corporate debt securities made to or issued by U.S. companies, non-U.S. entities and U.S. subsidiaries of non-U.S. entities. Floating interest rates vary with and are periodically adjusted to a generally recognized base interest rate such as the London Interbank Offered Rate (LIBOR) or the Prime Rate. The Fund may invest in companies whose financial condition is troubled or uncertain and that may be involved in bankruptcy proceedings, reorganizations or financial restructurings.

Floating interest rate loans and securities are generally credit rated less than investment grade and may be subject to restrictions on resale. The Fund invests at least 75% of its total assets in corporate loans and corporate debt securities that are rated B or higher by a nationally recognized statistical rating organization (NRSRO) or, if unrated, are determined to be of comparable quality by the Fund’s investment manager. The Fund may invest a portion of its total assets in corporate loans and corporate debt securities that are rated below B by an NRSRO or, if unrated, are determined to be of comparable quality by the investment manager.

In addition to the Fund’s main investments, the Fund may invest up to 20% of its net assets in certain other types of debt obligations or securities, including secured or unsecured corporate loans and corporate debt securities, and fixed rate obligations of U.S. companies.

The Fund typically invests in a corporate loan or corporate debt security if the investment manager judges that the borrower can meet the scheduled payments on the obligation. The investment manager performs its own independent credit analysis of each borrower and of the collateral structure securing the Fund’s investment.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.

Credit

An issuer of debt securities may fail to make interest payments and repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's credit rating may affect a security's value.

Floating Rate Corporate Loans

The senior secured corporate loans and corporate debt securities in which the Fund invests are often issued in connection with highly leveraged transactions. Such transactions include leveraged buyout loans, leveraged recapitalization loans, and other types of acquisition financing. Leveraged buyout loans are subject to greater credit risks than other investments including a greater possibility that the borrower may default or enter bankruptcy. Some of these loans may be “covenant lite” loans which do not include terms which allow the lender to control and track the performance of the borrower and declare a default if certain criteria are breached.

Impairment of Collateral

The value of collateral securing a loan or other corporate debt security may decline after the Fund invests and there is a risk that the value of the collateral may not be sufficient to cover the amount owed to the Fund, or the collateral securing a loan may be found invalid, may be used to pay other outstanding obligations of the borrower under applicable law or may be difficult to sell.

Market

The market values of securities owned by the Fund will go up and down, sometimes rapidly or unpredictably. A security’s market value may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all securities. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.

Liquidity

From time to time, the trading market for a particular security or type of security in which the Fund invests may become less liquid or even illiquid. Reduced liquidity will have an adverse impact on the Fund’s ability to sell such securities when necessary to meet the Fund’s liquidity needs or in response to a specific economic event and will also generally lower the value of a debt security. Market prices for such securities may be volatile.

High-Yield Debt Securities

Issuers of lower-rated or "high-yield" debt securities are not as strong financially as those issuing higher credit quality debt securities. These issuers are more likely to encounter financial difficulties and are more vulnerable to changes in the relevant economy, such as a recession or a sustained period of rising interest rates, that could affect their ability to make interest and principal payments when due. The prices of high-yield debt securities generally fluctuate more than those of higher credit quality. High-yield debt securities are generally more illiquid (harder to sell) and harder to value.

A significant portion of the Fund’s floating rate investments may be issued in connection with highly leveraged transactions. Such transactions include leveraged buyout loans and are subject to greater credit risks than other investments including a greater possibility that the borrower may default or go into bankruptcy.

Interest Rate

When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. In general, securities with longer maturities are more sensitive to these interest rate changes.

Variable Rate Securities

Because changes in interest rates on variable rate securities (including floating rate securities) may lag behind changes in market rates, the value of such securities may decline during periods of rising interest rates until their interest rates reset to market rates. If the changes in market rates are substantial, the interest rate on a variable rate security may not reset during a single adjustment period. Lifetime limits on resets may also prevent their rates from adjusting to market rates.

During periods of declining interest rates, because the interest rates on variable rate securities generally reset downward, their market value is unlikely to rise to the same extent as the value of comparable fixed rate securities.

Management

The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading CLASS A ANNUAL TOTAL RETURNS
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:Q2'0911.68%
Worst Quarter:Q4'08-18.90%
Performance Table Heading rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS
(figures reflect sales charges)

For the periods ended December 31, 2011
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

The 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 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 A and after-tax returns for other classes will vary.
Franklin Floating Rate Daily Access Fund | Credit Suisse Leveraged Loan Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.82%
5 Years rr_AverageAnnualReturnYear05 3.32%
10 Years rr_AverageAnnualReturnYear10 4.70%
Franklin Floating Rate Daily Access Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.33%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.33%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.02% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.93%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.02%) [1]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.91% [1],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 316
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 513
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 726
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,341
Annual Return 2002 rr_AnnualReturn2002 1.98%
Annual Return 2003 rr_AnnualReturn2003 6.57%
Annual Return 2004 rr_AnnualReturn2004 3.67%
Annual Return 2005 rr_AnnualReturn2005 4.20%
Annual Return 2006 rr_AnnualReturn2006 6.02%
Annual Return 2007 rr_AnnualReturn2007 1.78%
Annual Return 2008 rr_AnnualReturn2008 (22.83%)
Annual Return 2009 rr_AnnualReturn2009 29.56%
Annual Return 2010 rr_AnnualReturn2010 8.36%
Annual Return 2011 rr_AnnualReturn2011 0.87%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.68%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (18.90%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (1.39%)
5 Years rr_AverageAnnualReturnYear05 1.69%
10 Years rr_AverageAnnualReturnYear10 3.07%
Franklin Floating Rate Daily Access Fund | Class A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.94%)
5 Years rr_AverageAnnualReturnYear05 0.01%
10 Years rr_AverageAnnualReturnYear10 1.44%
Franklin Floating Rate Daily Access Fund | Class A | After Taxes on Distributions and Sales
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.90%)
5 Years rr_AverageAnnualReturnYear05 0.45%
10 Years rr_AverageAnnualReturnYear10 1.65%
Franklin Floating Rate Daily Access Fund | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none [5]
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 4.00% [5]
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.33%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.33%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.02% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.68%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.02%) [1]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.66% [1],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 569
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 828
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,111
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,787
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 169
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 528
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 911
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,787
1 Year rr_AverageAnnualReturnYear01 (3.62%)
5 Years rr_AverageAnnualReturnYear05 1.07%
10 Years rr_AverageAnnualReturnYear10 2.73%
Franklin Floating Rate Daily Access Fund | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.33%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.65%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.33%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.02% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.33%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.02%) [1]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.31% [1],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 233
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 420
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 727
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,601
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 133
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 420
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 727
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,601
1 Year rr_AverageAnnualReturnYear01 (0.38%)
5 Years rr_AverageAnnualReturnYear05 1.75%
10 Years rr_AverageAnnualReturnYear10 2.92%
Franklin Floating Rate Daily Access Fund | Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.33%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.33%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.02% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.68%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.02%) [1]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.66% [1],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 67
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 216
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 377
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 845
1 Year rr_AverageAnnualReturnYear01 1.13%
5 Years rr_AverageAnnualReturnYear05 2.41%
10 Years rr_AverageAnnualReturnYear10 3.58%
Franklin Low Duration Total Return Fund
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock A high level of current income as is consistent with prudent investing, while seeking preservation of capital.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds. More information about these and other discounts is available from your financial professional and under “Your Account” on page 106 in the Fund's Prospectus and under “Buying and Selling Shares” on page 70 of the Fund’s Statement of Additional Information.
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)
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 most recent fiscal year, the Fund's portfolio turnover rate was 75.51% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 75.51%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects adjustments made to the Fund's operating expenses due to the fee waiver and/or expense reimbursement by the investment manager and/or administrator for the 1 Year numbers only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests primarily in investment grade debt securities and investments, including government and corporate debt securities, mortgage- and asset-backed securities, investment grade corporate loans, municipal securities and futures with reference securities that are investment grade, targeting an estimated average portfolio duration of three (3) years or less. Duration is a measure of the expected price volatility of a debt instrument as a result of changes in market rates of interest, based on the weighted average timing of the instrument’s expected principal and interest payments and other factors.

The Fund may also invest up to 20% of its total assets in non-investment grade debt securities, including up to 5% in securities rated lower than B by S&P or Moody’s, which may include defaulted securities. The Fund may invest up to 25% of its total assets in foreign securities, including up to 20% of its total assets in non-U.S. dollar denominated securities and up to 10% of its total assets in emerging market securities. The Fund's focus on the credit quality of its portfolio is intended to reduce credit risk and help to preserve the Fund's capital.

Mortgage-backed securities represent an interest in a pool of mortgage loans made by banks and other financial institutions to finance purchases of homes, commercial buildings and other real estate. The individual mortgage loans are packaged or "pooled" together for sale to investors. As the underlying mortgage loans are paid off, investors receive principal and interest payments. These securities may be fixed-rate or adjustable-rate mortgage-backed securities (ARMS). The Fund may also invest a small portion of its assets directly in mortgage loans. Many of the mortgage-backed securities in which the Fund invests are issued or guaranteed by the U.S. government, its agencies or instrumentalities, such as Ginnie Mae and U.S. government-sponsored entities, such as Fannie Mae and Freddie Mac; others are issued by private entities.

To pursue its investment goals, the Fund regularly enters into various derivative transactions, including currency and cross-currency forwards, currency, currency index, bond and interest rate futures contracts and options on such contracts and swap agreements and options on swap agreements, including interest rate and credit default swaps. The use of these derivative transactions may allow the Fund to obtain net long or short exposures to select currencies, interest rates, countries, duration or credit risks. These derivatives may be used to enhance Fund returns, increase liquidity, gain exposure to certain instruments or markets in a more efficient or less expensive way and/or hedge risks associated with its other portfolio investments.

In choosing investments, the Fund’s investment manager selects securities in various market sectors based on the investment manager’s assessment of changing economic, market, industry and issuer conditions. The investment manager uses a “top-down” analysis of macroeconomic trends, combined with a “bottom-up” fundamental analysis of market sectors, industries and issuers, to try to take advantage of varying sector reactions to economic events.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal market conditions, the Fund invests primarily in investment grade debt securities and investments, including government and corporate debt securities, mortgage- and asset-backed securities, investment grade corporate loans, municipal securities and futures with reference securities that are investment grade, targeting an estimated average portfolio duration of three (3) years or less.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.

Interest Rate

When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. In general, securities with longer maturities are more sensitive to these interest rate changes.

Credit

An issuer of debt securities may fail to make interest payments and repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's credit rating may affect a security's value.

Income

Because the Fund can only distribute what it earns, the Fund's distributions to shareholders may decline when prevailing interest rates fall or when the Fund experiences defaults on debt securities it holds.

High-Yield Debt Securities

Issuers of lower-rated or "high-yield" debt securities are not as strong financially as those issuing higher credit quality debt securities. These issuers are more likely to encounter financial difficulties and are more vulnerable to changes in the relevant economy, such as a recession or a sustained period of rising interest rates, that could affect their ability to make interest and principal payments when due. The prices of high-yield debt securities generally fluctuate more than those of higher credit quality. High-yield debt securities are generally more illiquid (harder to sell) and harder to value.

Derivative Instruments

The performance of derivative instruments (including currency and credit related derivatives) depends largely on the performance of an underlying currency, security or index and such derivatives often have risks similar to their underlying instrument, in addition to other risks. Derivatives involve costs and can create economic leverage in the Fund's portfolio which may result in significant volatility and cause the Fund to participate in losses (as well as enable gains) in an amount that exceeds the Fund's initial investment. Other risks include illiquidity, mispricing or improper valuation of the derivative instrument, and imperfect correlation between the value of the derivative and the underlying instrument so that the Fund may not realize the intended benefits. When used for hedging, the change in value of the derivative may also not correlate specifically with the currency, security or other risk being hedged. With over-the-counter derivatives, there is the risk that the other party to the transaction will fail to perform.

Mortgage-Backed Securities

Mortgage-backed securities differ from conventional debt securities because principal is paid back periodically over the life of the security rather than at maturity. The Fund may receive unscheduled prepayments of principal due to voluntary prepayments, refinancings or foreclosures on the underlying mortgage loans. Because of repayments, mortgage-backed securities may be less effective than some other types of debt securities as a means of "locking in" long-term interest rates and may have less potential for capital appreciation during periods of falling interest rates. A reduction in the anticipated rate of principal prepayments, especially during periods of rising interest rates, may increase or extend the effective maturity of mortgage-backed securities, making them more sensitive to interest rate changes, subject to greater price volatility, and more susceptible than some other debt securities to a decline in market value when interest rates rise.

Foreign Securities

Investing in foreign securities typically involves more risks than investing in U.S. securities, including risks related to currency exchange rates and policies, country or government specific issues, less favorable trading practices or regulation and greater price volatility. Certain of these risks also may apply to securities of U.S. companies with significant foreign operations. The risks of investing in foreign securities are typically greater in less developed or emerging market countries.

Currency Management Strategies

Currency management strategies may substantially change the Fund’s exposure to currency exchange rates and could result in losses to the Fund if currencies do not perform as the investment manager expects. In addition, currency management strategies, to the extent that they reduce the Fund’s exposure to currency risks, may also reduce the Fund’s ability to benefit from favorable changes in currency exchange rates. Using currency management strategies for purposes other than hedging further increases the Fund’s exposure to foreign investment losses. Currency markets generally are not as regulated as securities markets. In addition, currency rates may fluctuate significantly over short periods of time, and can reduce returns.

Prepayment

Prepayment risk occurs when a debt security can be repaid in whole or in part prior to the security's maturity and the Fund must reinvest the proceeds it receives, during periods of declining interest rates, in securities that pay a lower rate of interest.

Market

The market values of securities owned by the Fund will go up and down, sometimes rapidly or unpredictably. A security’s market value may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all securities. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.

Management

The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading CLASS A ANNUAL TOTAL RETURNS
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:Q3'092.87%
Worst Quarter:Q3'11-1.94%
Performance Table Heading rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS
(figures reflect sales charges)

For the periods ended December 31, 2011
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

Historical performance for Advisor Class shares prior to their inception is based on the performance of Class A shares. Advisor Class performance has been adjusted to reflect differences in sales charges between classes.

The 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 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 A and after-tax returns for other classes will vary.
Franklin Low Duration Total Return Fund | Barclays Capital U.S. Government/Credit Index: 1-3 Year Component
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.59%
5 Years rr_AverageAnnualReturnYear05 3.99%
Since Inception rr_AverageAnnualReturnSinceInception 3.65%
Franklin Low Duration Total Return Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.42%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.37%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.05%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.14%) [6]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.91% [4],[6]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 316
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 538
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 778
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,467
Annual Return 2005 rr_AnnualReturn2005 1.26%
Annual Return 2006 rr_AnnualReturn2006 4.26%
Annual Return 2007 rr_AnnualReturn2007 5.86%
Annual Return 2008 rr_AnnualReturn2008 2.32%
Annual Return 2009 rr_AnnualReturn2009 8.24%
Annual Return 2010 rr_AnnualReturn2010 4.79%
Annual Return 2011 rr_AnnualReturn2011 0.60%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.87%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2011
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.94%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (1.69%)
5 Years rr_AverageAnnualReturnYear05 3.84%
Since Inception rr_AverageAnnualReturnSinceInception 3.47%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 17, 2004
Franklin Low Duration Total Return Fund | Class A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.73%)
5 Years rr_AverageAnnualReturnYear05 2.53%
Since Inception rr_AverageAnnualReturnSinceInception 2.18%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 17, 2004
Franklin Low Duration Total Return Fund | Class A | After Taxes on Distributions and Sales
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.09%)
5 Years rr_AverageAnnualReturnYear05 2.51%
Since Inception rr_AverageAnnualReturnSinceInception 2.20%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 17, 2004
Franklin Low Duration Total Return Fund | Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.42%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.37%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.80%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.14%) [6]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.66% [4],[6]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 67
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 241
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 430
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 977
1 Year rr_AverageAnnualReturnYear01 0.82%
5 Years rr_AverageAnnualReturnYear05 4.54%
Since Inception rr_AverageAnnualReturnSinceInception 3.96% [3]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 17, 2004
Franklin Total Return Fund
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock High current income, consistent with preservation of capital. As a secondary goal, capital appreciation over the long term.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds. More information about these and other discounts is available from your financial professional and under “Your Account” on page 106 in the Fund's Prospectus and under “Buying and Selling Shares” on page 70 of the Fund’s Statement of Additional Information.
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)
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 most recent fiscal year, the Fund's portfolio turnover rate was 255.55% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 255.55%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects adjustments made to the Fund's operating expenses due to the fee waiver and/or expense reimbursement by the investment manager and/or administrator for the 1 Year numbers only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption If you do not sell your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests at least 80% of its assets in investment grade debt securities and investments, including government and corporate debt securities, mortgage- and asset-backed securities, investment grade corporate loans, municipal securities, and futures with reference securities that are investment grade. The Fund currently focuses on government and corporate debt securities and mortgage- and asset-backed securities.

The Fund may also invest up to 20% of its total assets in non-investment grade debt securities, including up to 5% in securities rated lower than B by S&P or Moody’s, which may include defaulted securities. The Fund may invest up to 25% of its total assets in foreign securities, including up to 20% of its total assets in non-U.S. dollar denominated securities and up to 10% of its total assets in emerging market securities. The Fund's focus on the credit quality of its portfolio is intended to reduce credit risk and help to preserve the Fund's capital.

Mortgage-backed securities represent an interest in a pool of mortgage loans made by banks and other financial institutions to finance purchases of homes, commercial buildings and other real estate. The individual mortgage loans are packaged or "pooled" together for sale to investors. As the underlying mortgage loans are paid off, investors receive principal and interest payments. These securities may be fixed-rate or adjustable-rate mortgage-backed securities (ARMS). The Fund may also invest a small portion of its assets directly in mortgage loans. Many of the mortgage-backed securities in which the Fund invests are issued or guaranteed by the U.S. government, its agencies or instrumentalities, such as Ginnie Mae and U.S. government-sponsored entities, such as Fannie Mae and Freddie Mac; others are issued by private entities.

To pursue its investment goals, the Fund regularly enters into various derivative transactions, including currency and cross-currency forwards, currency, currency index, bond and interest rate futures contracts and options on such contracts and swap agreements and options on swap agreements, including interest rate and credit default swaps. The use of these derivative transactions may allow the Fund to obtain net long or short exposures to select currencies, interest rates, countries, duration or credit risks. These derivatives may be used to enhance Fund returns, increase liquidity, gain exposure to certain instruments or markets in a more efficient or less expensive way and/or hedge risks associated with its other portfolio investments.

In choosing investments, the Fund’s investment manager selects securities in various market sectors based on the investment manager’s assessment of changing economic, market, industry and issuer conditions. The investment manager uses a “top-down” analysis of macroeconomic trends, combined with a “bottom-up” fundamental analysis of market sectors, industries and issuers, to try to take advantage of varying sector reactions to economic events.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.

Interest Rate

When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. In general, securities with longer maturities are more sensitive to these interest rate changes.

Credit

An issuer of debt securities may fail to make interest payments and repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's credit rating may affect a security's value.

Income

Because the Fund can only distribute what it earns, the Fund's distributions to shareholders may decline when prevailing interest rates fall or when the Fund experiences defaults on debt securities it holds.

High-Yield Debt Securities

Issuers of lower-rated or "high-yield" debt securities are not as strong financially as those issuing higher credit quality debt securities. These issuers are more likely to encounter financial difficulties and are more vulnerable to changes in the relevant economy, such as a recession or a sustained period of rising interest rates, that could affect their ability to make interest and principal payments when due. The prices of high-yield debt securities generally fluctuate more than those of higher credit quality. High-yield debt securities are generally more illiquid (harder to sell) and harder to value.

Derivative Instruments

The performance of derivative instruments (including currency and credit related derivatives) depends largely on the performance of an underlying currency, security or index and such derivatives often have risks similar to their underlying instrument, in addition to other risks. Derivatives involve costs and can create economic leverage in the Fund's portfolio which may result in significant volatility and cause the Fund to participate in losses (as well as enable gains) in an amount that exceeds the Fund's initial investment. Other risks include illiquidity, mispricing or improper valuation of the derivative instrument, and imperfect correlation between the value of the derivative and the underlying instrument so that the Fund may not realize the intended benefits. When used for hedging, the change in value of the derivative may also not correlate specifically with the currency, security or other risk being hedged. With over-the-counter derivatives, there is the risk that the other party to the transaction will fail to perform.

Mortgage-Backed Securities

Mortgage-backed securities differ from conventional debt securities because principal is paid back periodically over the life of the security rather than at maturity. The Fund may receive unscheduled prepayments of principal due to voluntary prepayments, refinancings or foreclosures on the underlying mortgage loans. Because of repayments, mortgage-backed securities may be less effective than some other types of debt securities as a means of "locking in" long-term interest rates and may have less potential for capital appreciation during periods of falling interest rates. A reduction in the anticipated rate of principal prepayments, especially during periods of rising interest rates, may increase or extend the effective maturity of mortgage-backed securities, making them more sensitive to interest rate changes, subject to greater price volatility, and more susceptible than some other debt securities to a decline in market value when interest rates rise.

Foreign Securities

Investing in foreign securities typically involves more risks than investing in U.S. securities, including risks related to currency exchange rates and policies, country or government specific issues, less favorable trading practices or regulation and greater price volatility. Certain of these risks also may apply to securities of U.S. companies with significant foreign operations. The risks of investing in foreign securities are typically greater in less developed or emerging market countries.

Currency Management Strategies

Currency management strategies may substantially change the Fund’s exposure to currency exchange rates and could result in losses to the Fund if currencies do not perform as the investment manager expects. In addition, currency management strategies, to the extent that they reduce the Fund’s exposure to currency risks, may also reduce the Fund’s ability to benefit from favorable changes in currency exchange rates. Using currency management strategies for purposes other than hedging further increases the Fund’s exposure to foreign investment losses. Currency markets generally are not as regulated as securities markets. In addition, currency rates may fluctuate significantly over short periods of time, and can reduce returns.

Prepayment

Prepayment risk occurs when a debt security can be repaid in whole or in part prior to the security's maturity and the Fund must reinvest the proceeds it receives, during periods of declining interest rates, in securities that pay a lower rate of interest.

Market

The market values of securities owned by the Fund will go up and down, sometimes rapidly or unpredictably. A security’s market value may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all securities. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.

Management

The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

The secondary index in the table below shows how the Fund's performance compares to a group of securities that aligns more closely with the Fund's investment strategies.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading CLASS A ANNUAL TOTAL RETURNS
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:Q3'096.20%
Worst Quarter:Q3'08-4.05%
Performance Table Heading rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS
(figures reflect sales charges)

For the periods ended December 31, 2011
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

The 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 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 A and after-tax returns for other classes will vary.
Franklin Total Return Fund | Barclays Capital U.S. Aggregate Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.84%
5 Years rr_AverageAnnualReturnYear05 6.50%
10 Years rr_AverageAnnualReturnYear10 5.78%
Franklin Total Return Fund | Barclays Capital U.S. Universal Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.40%
5 Years rr_AverageAnnualReturnYear05 6.39%
10 Years rr_AverageAnnualReturnYear10 6.01%
Franklin Total Return Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 4.25%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.28%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.41%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.95%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.06%) [7]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.89% [4],[7]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 512
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 709
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 923
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,537
Annual Return 2002 rr_AnnualReturn2002 8.19%
Annual Return 2003 rr_AnnualReturn2003 7.90%
Annual Return 2004 rr_AnnualReturn2004 5.27%
Annual Return 2005 rr_AnnualReturn2005 1.80%
Annual Return 2006 rr_AnnualReturn2006 4.86%
Annual Return 2007 rr_AnnualReturn2007 4.86%
Annual Return 2008 rr_AnnualReturn2008 (5.48%)
Annual Return 2009 rr_AnnualReturn2009 15.39%
Annual Return 2010 rr_AnnualReturn2010 10.13%
Annual Return 2011 rr_AnnualReturn2011 5.53%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.20%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (4.05%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 1.01%
5 Years rr_AverageAnnualReturnYear05 4.94%
10 Years rr_AverageAnnualReturnYear10 5.26%
Franklin Total Return Fund | Class A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.84%)
5 Years rr_AverageAnnualReturnYear05 3.00%
10 Years rr_AverageAnnualReturnYear10 3.36%
Franklin Total Return Fund | Class A | After Taxes on Distributions and Sales
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.77%
5 Years rr_AverageAnnualReturnYear05 3.07%
10 Years rr_AverageAnnualReturnYear10 3.36%
Franklin Total Return Fund | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none [5]
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 4.00% [5]
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.28%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.65%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.41%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.35%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.06%) [7]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.29% [4],[7]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 531
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 722
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 934
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,510
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 131
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 422
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 734
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,510
1 Year rr_AverageAnnualReturnYear01 1.06%
5 Years rr_AverageAnnualReturnYear05 5.11%
10 Years rr_AverageAnnualReturnYear10 5.41% [8]
Franklin Total Return Fund | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.28%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.65%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.41%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.35%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.06%) [7]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.29% [4],[7]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 231
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 422
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 734
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,619
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 131
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 422
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 734
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,619
1 Year rr_AverageAnnualReturnYear01 4.15%
5 Years rr_AverageAnnualReturnYear05 5.43%
10 Years rr_AverageAnnualReturnYear10 5.33% [8]
Franklin Total Return Fund | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.28%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.41%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.20%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.06%) [7]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.14% [4],[7]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 116
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 375
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 654
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,450
1 Year rr_AverageAnnualReturnYear01 5.29%
5 Years rr_AverageAnnualReturnYear05 5.60%
10 Years rr_AverageAnnualReturnYear10 5.46%
Franklin Total Return Fund | Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.28%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.41%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.70%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.06%) [7]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.64% [4],[7]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 65
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 218
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 384
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 865
1 Year rr_AverageAnnualReturnYear01 5.76%
5 Years rr_AverageAnnualReturnYear05 6.13%
10 Years rr_AverageAnnualReturnYear10 5.99%
Franklin Balanced Fund
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock Both income and capital appreciation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $50,000 in Franklin Templeton funds. More information about these and other discounts is available from your financial professional and under “Your Account” on page 118 in the Fund's Prospectus and under “Buying and Selling Shares” on page 66 of the Fund’s Statement of Additional Information.
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)
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 most recent fiscal year, the Fund's portfolio turnover rate was 70.76% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 70.76%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $50,000 in Franklin Templeton funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects adjustments made to the Fund's operating expenses due to the fee waiver and/or expense reimbursement by the investment manager and/or administrator for the 1 Year numbers only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption If you do not sell your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests in a diversified portfolio of stocks (substantially dividend paying), convertible securities and debt securities. The Fund normally invests at least 25% of its total assets in debt securities, including bonds, notes, debentures and money market securities. In addition, the Fund normally invests at least 25% of its total assets in equity securities, primarily common and preferred stock. To the extent that the value of convertible and preferred securities can be attributed to their debt characteristics, they will be treated as debt securities for purposes of this investment policy.

The Fund seeks income by investing in a combination of corporate, agency and government bonds issued in the United States and other countries, as well as common stocks and convertible securities. The Fund seeks capital appreciation by investing in equity securities and convertible securities of companies from a variety of industries.

The Fund generally invests in investment grade debt securities. The Fund does not currently anticipate investing more than 15% of its total assets in securities of issuers domiciled outside the United States.

For purposes of pursuing its investment goal, the Fund may enter into various equity-related transactions involving derivative instruments, including put and call options on equity securities and equity indices. The Fund may enter into equity-related derivatives transactions to hedge against market risk, to earn income (in the form of premiums received for writing options), to gain or increase exposure to certain equity securities or segments of the equity markets or to otherwise enhance Fund returns. For example, the Fund may write an option with a strike price that is generally equal to the price target at which the investment manager would sell (in the case of a call option) or purchase (in the case of a put option) a particular stock, and in return the Fund would earn a premium from the buyer of the option.

The investment manager applies a “bottom-up” approach to investing in individual securities. The investment manager will assess the market price of a company’s securities relative to the investment manager’s evaluation of the company’s long-term earnings, asset value and cash flow potential. The investment manager also considers a company’s price/earnings ratio, profit margins and liquidation value. In determining an optimal mix of equity and fixed-income investments for the Fund, the investment manager assesses changing economic, market and industry conditions.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal market conditions, the Fund invests in a diversified portfolio of stocks (substantially dividend paying), convertible securities and debt securities.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.

Market

The market values of securities owned by the Fund will go up and down, sometimes rapidly or unpredictably. A security’s market value may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all securities. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.

Individual stock prices tend to go up and down more dramatically than those of other types of investments. A slower-growth or recessionary economic environment could have an adverse effect on the price of the various stocks held by the Fund.

Credit

An issuer of debt securities may fail to make interest payments and repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's credit rating may affect a security's value.

Interest Rate

When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. In general, securities with longer maturities are more sensitive to these interest rate changes.

Income

Because the Fund can only distribute what it earns, the Fund's distributions to shareholders may decline when prevailing interest rates fall or when the Fund experiences defaults on debt securities it holds.

Convertible Securities

Convertible securities are subject to the risks of stocks when the underlying stock price is high relative to the conversion price (because more of the security's value resides in the conversion feature) and debt securities when the underlying stock price is low relative to the conversion price (because the conversion feature is less valuable). A convertible security is not as sensitive to interest rate changes as a similar non-convertible debt security, and generally has less potential for gain or loss than the underlying stock.

Foreign Securities

Investing in foreign securities typically involves more risks than investing in U.S. securities, including risks related to currency exchange rates and policies, country or government specific issues, less favorable trading practices or regulation and greater price volatility. Certain of these risks also may apply to securities of U.S. companies with significant foreign operations.

Management

The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.

Derivative Instruments

The performance of derivative instruments depends largely on the performance of an underlying currency, security or index and such instruments often have risks similar to their underlying instrument, in addition to other risks. Derivative instruments involve costs, may be volatile and illiquid, may give rise to leverage and may involve a small initial investment relative to the risk assumed. There may also be imperfect correlation between the value of the derivative and the underlying instrument. When used for hedging, the change in value of the derivative may also not correlate specifically with the currency, security or other risk being hedged. With over-the-counter derivatives, there is the risk that the other party to the transaction will fail to perform.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

The secondary index in the table below shows how the Fund's performance compares to a group of securities that aligns with the fixed-income component of the Fund's portfolio.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading CLASS A ANNUAL TOTAL RETURNS
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:Q2'0918.86%
Worst Quarter:Q3'08-15.77%
Performance Table Heading rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS
(figures reflect sales charges)

For the periods ended December 31, 2011
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

The 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 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 A and after-tax returns for other classes will vary.
Franklin Balanced Fund | Barclays Capital U.S. Aggregate Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.84%
5 Years rr_AverageAnnualReturnYear05 6.50%
Since Inception rr_AverageAnnualReturnSinceInception 6.85%
Franklin Balanced Fund | S&P 500® Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.11%
5 Years rr_AverageAnnualReturnYear05 (0.25%)
Since Inception rr_AverageAnnualReturnSinceInception 1.97%
Franklin Balanced Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.50%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.30%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.38%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.19%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.17%) [9]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.02% [4],[9]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 673
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 915
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,176
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,922
Annual Return 2007 rr_AnnualReturn2007 4.15%
Annual Return 2008 rr_AnnualReturn2008 (32.82%)
Annual Return 2009 rr_AnnualReturn2009 37.58%
Annual Return 2010 rr_AnnualReturn2010 15.13%
Annual Return 2011 rr_AnnualReturn2011 3.23%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 18.86%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (15.77%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (2.75%)
5 Years rr_AverageAnnualReturnYear05 1.51%
Since Inception rr_AverageAnnualReturnSinceInception 3.09%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 03, 2006
Franklin Balanced Fund | Class A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (3.60%)
5 Years rr_AverageAnnualReturnYear05 0.31%
Since Inception rr_AverageAnnualReturnSinceInception 1.89%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 03, 2006
Franklin Balanced Fund | Class A | After Taxes on Distributions and Sales
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.40%)
5 Years rr_AverageAnnualReturnYear05 0.68%
Since Inception rr_AverageAnnualReturnSinceInception 2.04%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 03, 2006
Franklin Balanced Fund | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.50%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.38%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.89%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.17%) [9]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.72% [4],[9]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 275
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 577
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,006
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,199
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 175
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 577
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,006
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,199
1 Year rr_AverageAnnualReturnYear01 1.52%
5 Years rr_AverageAnnualReturnYear05 2.02%
Since Inception rr_AverageAnnualReturnSinceInception 3.49%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 03, 2006
Franklin Balanced Fund | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.50%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.38%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.39%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.17%) [9]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.22% [4],[9]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 124
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 423
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 744
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,655
1 Year rr_AverageAnnualReturnYear01 3.00%
5 Years rr_AverageAnnualReturnYear05 2.54%
Since Inception rr_AverageAnnualReturnSinceInception 4.03%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 03, 2006
Franklin Balanced Fund | Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.50%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.38%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.89%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.17%) [9]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.72% [4],[9]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 74
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 267
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 476
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,081
1 Year rr_AverageAnnualReturnYear01 3.54%
5 Years rr_AverageAnnualReturnYear05 3.03%
Since Inception rr_AverageAnnualReturnSinceInception 4.52%
Inception Date rr_AverageAnnualReturnInceptionDate Jul. 03, 2006
Franklin Convertible Securities Fund
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock To maximize total return, consistent with reasonable risk, by seeking to optimize capital appreciation and high current income under varying market conditions.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $50,000 in Franklin Templeton funds. More information about these and other discounts is available from your financial professional and under “Your Account” on page 118 in the Fund's Prospectus and under “Buying and Selling Shares” on page 66 of the Fund’s Statement of Additional Information.
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)
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 most recent fiscal year, the Fund's portfolio turnover rate was 23.24% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 23.24%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $50,000 in Franklin Templeton funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption If you do not sell your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests at least 80% of its net assets in convertible securities (and common stock received upon conversion of convertible securities). A convertible security is generally a debt security or preferred stock that may be converted within a specified period of time into common stock of the same or a different issuer. By investing in convertible securities, the Fund seeks the opportunity to participate in the capital appreciation of underlying stocks, while at the same time relying on the fixed income aspect of the convertible securities to provide current income and reduced price volatility, which can limit the risk of loss in a down equity market.

A convertible security shares features of both equity and debt securities. Like an equity security, the value of a convertible security tends to increase as the price of the underlying stock goes up, and to decrease as the price of the underlying stock goes down. Like a debt security, a convertible security provides a fixed income stream and also tends to increase in value when interest rates fall and decrease in value when interest rates rise.

When choosing convertible securities for this Fund, the investment manager attempts to maintain a balance in the portfolio between the equity and debt characteristics of convertible securities with an emphasis on the equity features. The investment manager also considers the company’s long-term earnings, asset value and cash flow potential. Some of the convertible securities in which the Fund may invest have been structured to provide enhanced yield, increased equity exposure, or enhanced downside protection. These securities typically provide a benefit to the issuer in exchange for the enhanced features, such as a conversion premium that is paid by the Fund. The Fund may invest in convertible securities of companies of any capitalization size, but generally seeks to make its portfolio representative of the entire convertible securities market.

Convertible securities generally fall within the lower-rated categories as determined by securities rating organizations. Therefore, the Fund may invest up to 100% of its assets in securities that are rated below investment grade; however, the Fund will not invest more than 10% of its assets in securities rated below B or in unrated securities of comparable quality. The Fund may invest up to 20% of its net assets in other securities, such as common or preferred stocks and non-convertible debt securities.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal market conditions, the Fund invests at least 80% of its net assets in convertible securities (and common stock received upon conversion of convertible securities).
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.

Convertible Securities

Convertible securities are subject to the risks of stocks when the underlying stock price is high relative to the conversion price (because more of the security's value resides in the conversion feature) and debt securities when the underlying stock price is low relative to the conversion price (because the conversion feature is less valuable). A convertible security is not as sensitive to interest rate changes as a similar non-convertible debt security, and generally has less potential for gain or loss than the underlying stock.

Credit

An issuer of debt securities may fail to make interest payments and repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's credit rating may affect a security's value.

High-Yield Debt Securities

Issuers of lower-rated or "high-yield" debt securities are not as strong financially as those issuing higher credit quality debt securities. These issuers are more likely to encounter financial difficulties and are more vulnerable to changes in the relevant economy, such as a recession or a sustained period of rising interest rates, that could affect their ability to make interest and principal payments when due. The prices of high-yield debt securities generally fluctuate more than those of higher credit quality. High-yield debt securities are generally more illiquid (harder to sell) and harder to value.

Liquidity

From time to time, the trading market for a particular security or type of security in which the Fund invests may become less liquid or even illiquid. Reduced liquidity will have an adverse impact on the Fund’s ability to sell such securities when necessary to meet the Fund’s liquidity needs or in response to a specific economic event and will also generally lower the value of a debt security. Market prices for such securities may be volatile.

Market

The market values of securities owned by the Fund will go up and down, sometimes rapidly or unpredictably. A security’s market value may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all securities. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.

Individual stock prices tend to go up and down more dramatically than those of other types of investments. A slower-growth or recessionary economic environment could have an adverse effect on the price of the various stocks held by the Fund.

Income

Because the Fund can only distribute what it earns, the Fund's distributions to shareholders may decline when prevailing interest rates fall or when the Fund experiences defaults on debt securities it holds.

Interest Rate

When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. In general, securities with longer maturities are more sensitive to these interest rate changes.

Management

The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading CLASS A ANNUAL TOTAL RETURNS
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:Q3'0917.53%
Worst Quarter:Q4'08-19.73%
Performance Table Heading rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS
(figures reflect sales charges)

For the periods ended December 31, 2011
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

Historical performance for Advisor Class shares prior to their inception is based on the performance of Class A shares. Advisor Class performance has been adjusted to reflect differences in sales charges between classes.

The 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 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 A and after-tax returns for other classes will vary.
Franklin Convertible Securities Fund | BofA Merrill Lynch All Total Return Alternatives U.S. Convertibles Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (5.60%)
5 Years rr_AverageAnnualReturnYear05 2.52%
10 Years rr_AverageAnnualReturnYear10 4.93%
Franklin Convertible Securities Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.47%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.16%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.89% [4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 661
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 843
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,040
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,608
Annual Return 2002 rr_AnnualReturn2002 (15.55%)
Annual Return 2003 rr_AnnualReturn2003 35.44%
Annual Return 2004 rr_AnnualReturn2004 16.02%
Annual Return 2005 rr_AnnualReturn2005 6.93%
Annual Return 2006 rr_AnnualReturn2006 12.15%
Annual Return 2007 rr_AnnualReturn2007 0.50%
Annual Return 2008 rr_AnnualReturn2008 (35.38%)
Annual Return 2009 rr_AnnualReturn2009 49.72%
Annual Return 2010 rr_AnnualReturn2010 20.50%
Annual Return 2011 rr_AnnualReturn2011 (5.58%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.53%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (19.73%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (11.01%)
5 Years rr_AverageAnnualReturnYear05 0.83%
10 Years rr_AverageAnnualReturnYear10 5.19%
Franklin Convertible Securities Fund | Class A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (11.94%)
5 Years rr_AverageAnnualReturnYear05 (0.72%)
10 Years rr_AverageAnnualReturnYear10 3.39%
Franklin Convertible Securities Fund | Class A | After Taxes on Distributions and Sales
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (7.02%)
5 Years rr_AverageAnnualReturnYear05 (0.14%)
10 Years rr_AverageAnnualReturnYear10 3.49%
Franklin Convertible Securities Fund | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.47%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.16%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.64% [4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 267
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 517
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 892
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,944
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 167
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 517
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 892
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,944
1 Year rr_AverageAnnualReturnYear01 (7.15%)
5 Years rr_AverageAnnualReturnYear05 1.29%
10 Years rr_AverageAnnualReturnYear10 5.04%
Franklin Convertible Securities Fund | Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.47%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.16%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.64% [4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 65
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 205
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 357
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 798
1 Year rr_AverageAnnualReturnYear01 (5.27%)
5 Years rr_AverageAnnualReturnYear05 2.25%
10 Years rr_AverageAnnualReturnYear10 5.93%
Franklin Equity Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock To maximize total return by emphasizing high current income and long-term capital appreciation, consistent with reasonable risk.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $50,000 in Franklin Templeton funds. More information about these and other discounts is available from your financial professional and under “Your Account” on page 118 in the Fund's Prospectus and under “Buying and Selling Shares” on page 66 of the Fund’s Statement of Additional Information.
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)
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 most recent fiscal year, the Fund's portfolio turnover rate was 19.45% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 19.45%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $50,000 in Franklin Templeton funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects adjustments made to the Fund's operating expenses due to the fee waiver and/or expense reimbursement by the investment manager and/or administrator for the 1 Year numbers only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption If you do not sell your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund normally invests at least 80% of its net assets in equity securities, including securities convertible into common stocks. The Fund may also invest up to 20% of its net assets in debt securities, including any combination of the following investments: corporate, agency and government bonds issued in the United States and other countries; notes and debentures (collectively with bonds referred to as debt securities). The Fund does not presently intend to invest in any below investment grade bonds that are not convertible bonds. The Fund generally invests between 60% and 80% of its net assets in common stocks, and the remainder of its assets in other instruments such as convertible securities and debt securities.

The Fund may invest in foreign securities including emerging markets, but does not currently anticipate investing more than 25% of its total assets in securities of issuers domiciled outside the United States.

While the Fund does not concentrate in any one industry, from time to time, based on economic conditions, it may make significant investments in certain sectors.

The Fund’s strategy is to invest in a broadly diversified portfolio of equity securities that the Fund’s investment manager considers to be financially strong, with a focus on "blue chip" companies. The investment manager applies a "bottom-up" approach to investing in individual securities. The investment manager will assess the market price of a company's securities relative to the investment manager's evaluation of the company's long-term earnings, asset value, and cash flow potential. The investment manager also considers a company's price/earnings ratio, profit margins, balance sheet and liquidation value. The Fund’s investment manager considers dividend yield in selecting stocks for the Fund because the investment manager believes that, over time, dividend income can contribute significantly to total return and can be a more consistent source of investment return than capital appreciation.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.

Market

The market values of securities owned by the Fund will go up and down, sometimes rapidly or unpredictably. A security’s market value may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all securities. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.

Individual stock prices tend to go up and down more dramatically than those of other types of investments. A slower-growth or recessionary economic environment could have an adverse effect on the price of the various stocks held by the Fund.

Convertible Securities

Convertible securities are subject to the risks of stocks when the underlying stock price is high relative to the conversion price (because more of the security's value resides in the conversion feature) and debt securities when the underlying stock price is low relative to the conversion price (because the conversion feature is less valuable). A convertible security is not as sensitive to interest rate changes as a similar non-convertible debt security, and generally has less potential for gain or loss than the underlying stock.

Blend Style Investing

A “blend” strategy results in investments in both growth and value stocks, or in stocks with characteristics of both. Growth stock prices reflect projections of future earnings or revenues and can fall dramatically if the company fails to meet those projections. With respect to value stocks, if other investors fail to recognize the company’s value, or favor investing in faster-growing companies, value stocks may not increase in value as anticipated by the Fund's investment manager or may decline even further.

Income

Because the Fund can only distribute what it earns, the Fund's distributions to shareholders may decline when prevailing interest rates fall, when dividend income from investments in stocks decline, or when the Fund experiences defaults on debt securities it holds.

Focus

To the extent that the Fund focuses on particular countries, regions, industries, sectors or types of investment from time to time, the Fund may be subject to greater risks of adverse developments in such areas of focus than a fund that invests in a wider variety of countries, regions, industries, sectors or investments.

Foreign Securities

Investing in foreign securities typically involves more risks than investing in U.S. securities, including risks related to currency exchange rates and policies, country or government specific issues, less favorable trading practices or regulation and greater price volatility. Certain of these risks also may apply to securities of U.S. companies with significant foreign operations. The risks of investing in foreign securities are typically greater in less developed or emerging market countries.

Credit

An issuer of debt securities may fail to make interest payments and repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's credit rating may affect a security's value.

High-Yield Debt Securities

Issuers of lower-rated or "high-yield" debt securities are not as strong financially as those issuing higher credit quality debt securities. These issuers are more likely to encounter financial difficulties and are more vulnerable to changes in the relevant economy, such as a recession or a sustained period of rising interest rates, that could affect their ability to make interest and principal payments when due. The prices of high-yield debt securities generally fluctuate more than those of higher credit quality. High-yield debt securities are generally more illiquid (harder to sell) and harder to value.

Management

The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading CLASS A ANNUAL TOTAL RETURNS
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:Q2'0316.75%
Worst Quarter:Q4'08-18.98%
Performance Table Heading rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS
(figures reflect sales charges)

For the periods ended December 31, 2011
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

Historical performance for Class R and Advisor Class shares prior to their inception is based on the performance of Class A shares. Class R and Advisor Class performance has been adjusted to reflect differences in sales charges and 12b-1 expenses (with respect to Class R only) between classes.

The 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 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 A and after-tax returns for other classes will vary.
Franklin Equity Income Fund | S&P 500® Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.11%
5 Years rr_AverageAnnualReturnYear05 (0.25%)
10 Years rr_AverageAnnualReturnYear10 2.92%
Franklin Equity Income Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.48%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.24%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.98%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.01%) [1]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.97% [1],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 668
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 868
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,085
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,707
Annual Return 2002 rr_AnnualReturn2002 (15.11%)
Annual Return 2003 rr_AnnualReturn2003 24.89%
Annual Return 2004 rr_AnnualReturn2004 10.47%
Annual Return 2005 rr_AnnualReturn2005 3.21%
Annual Return 2006 rr_AnnualReturn2006 16.36%
Annual Return 2007 rr_AnnualReturn2007 (3.55%)
Annual Return 2008 rr_AnnualReturn2008 (35.36%)
Annual Return 2009 rr_AnnualReturn2009 26.42%
Annual Return 2010 rr_AnnualReturn2010 15.86%
Annual Return 2011 rr_AnnualReturn2011 1.47%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2003
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.75%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (18.98%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (4.37%)
5 Years rr_AverageAnnualReturnYear05 (2.67%)
10 Years rr_AverageAnnualReturnYear10 2.08%
Franklin Equity Income Fund | Class A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (4.75%)
5 Years rr_AverageAnnualReturnYear05 (3.23%)
10 Years rr_AverageAnnualReturnYear10 1.42%
Franklin Equity Income Fund | Class A | After Taxes on Distributions and Sales
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.35%)
5 Years rr_AverageAnnualReturnYear05 (2.29%)
10 Years rr_AverageAnnualReturnYear10 1.69%
Franklin Equity Income Fund | Class B
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none [5]
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 4.00% [5]
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.48%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.99%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.24%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.72%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.01%) [1]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.71% [1],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 574
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 841
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,133
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,834
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 174
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 541
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 933
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,834
1 Year rr_AverageAnnualReturnYear01 (3.23%)
5 Years rr_AverageAnnualReturnYear05 (2.60%)
10 Years rr_AverageAnnualReturnYear10 2.08%
Franklin Equity Income Fund | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.48%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.24%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.73%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.01%) [1]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.72% [1],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 275
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 544
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 938
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,041
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 175
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 544
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 938
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,041
1 Year rr_AverageAnnualReturnYear01 (0.29%)
5 Years rr_AverageAnnualReturnYear05 (2.25%)
10 Years rr_AverageAnnualReturnYear10 1.92%
Franklin Equity Income Fund | Class R
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.48%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.24%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.23%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.01%) [1]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.22% [1],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 124
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 389
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 675
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,488
1 Year rr_AverageAnnualReturnYear01 1.20%
5 Years rr_AverageAnnualReturnYear05 (1.79%)
10 Years rr_AverageAnnualReturnYear10 2.42%
Franklin Equity Income Fund | Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.48%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.24%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.73%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.01%) [1]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.72% [1],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 74
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 232
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 405
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 906
1 Year rr_AverageAnnualReturnYear01 1.72%
5 Years rr_AverageAnnualReturnYear05 (1.33%)
10 Years rr_AverageAnnualReturnYear10 2.78%
Franklin Limited Maturity U.S. Government Securities Fund
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock As high a level of current income as is consistent with prudent investing, while seeking preservation of shareholders’ capital.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds. More information about these and other discounts is available from your financial professional and under “Your Account” on page 118 in the Fund's Prospectus and under “Buying and Selling Shares” on page 66 of the Fund’s Statement of Additional Information.
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)
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 most recent fiscal year, the Fund's portfolio turnover rate was 97.24% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 97.24%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund'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 Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests at least 80% of its net assets in securities with a dollar-weighted average maturity of less than 10 years and issued or guaranteed by the U.S. government, its agencies, or instrumentalities. The Fund generally invests a substantial portion of its assets in mortgage-backed securities including adjustable rate mortgage securities (ARMs), but the Fund also invests in direct obligations of the U.S. government (such as Treasury bonds, bills and notes) and in securities issued or guaranteed by the U.S. government, its agencies or instrumentalities, including government sponsored entities. All of the Fund’s principal investments are debt securities, including bonds, notes and debentures.

The Fund currently maintains the average dollar-weighted maturity of its fixed-rate portfolio in a range of one to five years. The average dollar-weighted maturity of the Fund will vary with market conditions and the outlook for interest rates.

Mortgage-backed securities represent an interest in a pool of mortgage loans made by banks and other financial institutions to finance purchases of homes, commercial buildings and other real estate. As the underlying mortgage loans are paid off, investors receive periodic principal and interest payments as well as any unscheduled principal prepayments on the underlying mortgage loans. The mortgage-backed securities purchased by the Fund include, but are not limited to, bonds and notes issued or guaranteed by the Government National Mortgage Association (Ginnie Mae) and U.S. government-sponsored entities, such as Fannie Mae and Freddie Mac.

Government agency or instrumentality issues have different levels of credit support. Ginnie Mae pass-through mortgage certificates are backed by the full faith and credit of the U.S. government. U.S. government-sponsored entities, such as Fannie Mae and Freddie Mac, may be chartered by Acts of Congress, but their securities are neither issued nor guaranteed by the U.S. government. Although the U.S. government has recently provided financial support to Fannie Mae and Freddie Mac, no assurance can be given that the U.S. government will continue to do so. The Fund may invest in obligations of other U.S. government-sponsored entities, which may be supported only by the credit of the issuing agency or instrumentality, such as securities issued by members of the Farm Credit System. Accordingly, securities issued by Fannie Mae, Freddie Mac, the Farm Credit System, and similar securities may involve a risk of non-payment of principal and interest. Investors should remember that guarantees of timely prepayment of principal and interest do not apply to the market prices and yields of the securities or to the net asset value or performance of the Fund, which will vary with changes in interest rates and other market conditions.

The Fund may also invest in U.S. inflation-indexed securities issued by governments and municipal issuers.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal market conditions, the Fund invests at least 80% of its net assets in securities with a dollar-weighted average maturity of less than 10 years and issued or guaranteed by the U.S. government, its agencies, or instrumentalities.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.

Interest Rate

When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. In general, securities with longer maturities are more sensitive to these interest rate changes.

Variable Rate Securities

Because changes in interest rates on variable rate securities (including floating rate securities) may lag behind changes in market rates, the value of such securities may decline during periods of rising interest rates until their interest rates reset to market rates. If the changes in market rates are substantial, the interest rate on a variable rate security may not reset during a single adjustment period. Lifetime limits on resets may also prevent their rates from adjusting to market rates.

During periods of declining interest rates, because the interest rates on variable rate securities generally reset downward, their market value is unlikely to rise to the same extent as the value of comparable fixed rate securities.

Income

Because the Fund can only distribute what it earns, the Fund's distributions to shareholders may decline when prevailing interest rates fall or when the Fund experiences defaults on debt securities it holds.

Credit

An issuer of debt securities may fail to make interest payments and repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's credit rating may affect a security's value. While securities issued by Ginnie Mae are backed by the full faith and credit of the U.S. government, not all securities of the various U.S. government agencies are, including those of Fannie Mae and Freddie Mac. Also guarantees of principal and interest do not apply to market prices, yields or the Fund’s share price. While the U.S. government has recently provided financial support to Fannie Mae and Freddie Mac, no assurance can be given that the U.S. government will always do so, since the U.S. government is not so obligated by law. Some securities issued by government agencies, instrumentalities or government sponsored entities are only backed by the credit worthiness of those institutions, not the U.S. government. Investments in such securities include greater risk of non-payment of principal and interest than other U.S. government securities.

Mortgage-Backed Securities

Mortgage-backed securities differ from conventional debt securities because principal is paid back periodically over the life of the security rather than at maturity. The Fund may receive unscheduled prepayments of principal due to voluntary prepayments, refinancings or foreclosures on the underlying mortgage loans. Because of repayments, mortgage-backed securities may be less effective than some other types of debt securities as a means of "locking in" long-term interest rates and may have less potential for capital appreciation during periods of falling interest rates. A reduction in the anticipated rate of principal prepayments, especially during periods of rising interest rates, may increase or extend the effective maturity of mortgage-backed securities, making them more sensitive to interest rate changes, subject to greater price volatility, and more susceptible than some other debt securities to a decline in market value when interest rates rise.

Prepayment

Prepayment risk occurs when a debt security can be repaid in whole or in part prior to the security's maturity and the Fund must reinvest the proceeds it receives, during periods of declining interest rates, in securities that pay a lower rate of interest.

Inflation-Indexed Securities

Inflation-indexed securities have a tendency to react to changes in real interest rates. Real interest rates represent nominal (stated) interest rates lowered by the anticipated effect of inflation. In general, the price of an inflation-indexed security can decrease when real interest rates increase, and can increase when real interest rates decrease. Interest payments on inflation-indexed securities will fluctuate as the principal and/or interest is adjusted for inflation and can be unpredictable.

Management

The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.

Market

The market values of securities owned by the Fund will go up and down, sometimes rapidly or unpredictably. A security’s market value may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all securities. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

The secondary index in the table below shows how the Fund's performance compares to a group of securities that aligns more closely with the Fund's investment strategies.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading CLASS A ANNUAL TOTAL RETURNS
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:Q4'084.46%
Worst Quarter:Q2'04-1.76%
Performance Table Heading rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS
(figures reflect sales charges)

For the periods ended December 31, 2011
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

The 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 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 A and after-tax returns for other classes will vary.
Franklin Limited Maturity U.S. Government Securities Fund | Barclays Capital U.S. Treasury Index: 1-5 Year Component
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.38%
5 Years rr_AverageAnnualReturnYear05 4.81%
10 Years rr_AverageAnnualReturnYear10 4.00%
Franklin Limited Maturity U.S. Government Securities Fund | Barclays Capital U.S. Treasury Index: 1-3 Year Component
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.55%
5 Years rr_AverageAnnualReturnYear05 3.71%
10 Years rr_AverageAnnualReturnYear10 3.27%
Franklin Limited Maturity U.S. Government Securities Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.50%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.10%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.17%
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.77%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 302
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 465
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 643
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,158
Annual Return 2002 rr_AnnualReturn2002 7.36%
Annual Return 2003 rr_AnnualReturn2003 1.73%
Annual Return 2004 rr_AnnualReturn2004 1.21%
Annual Return 2005 rr_AnnualReturn2005 0.72%
Annual Return 2006 rr_AnnualReturn2006 3.57%
Annual Return 2007 rr_AnnualReturn2007 6.65%
Annual Return 2008 rr_AnnualReturn2008 7.18%
Annual Return 2009 rr_AnnualReturn2009 2.89%
Annual Return 2010 rr_AnnualReturn2010 2.98%
Annual Return 2011 rr_AnnualReturn2011 1.69%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 4.46%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2004
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (1.76%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (0.59%)
5 Years rr_AverageAnnualReturnYear05 3.78%
10 Years rr_AverageAnnualReturnYear10 3.33%
Franklin Limited Maturity U.S. Government Securities Fund | Class A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.37%)
5 Years rr_AverageAnnualReturnYear05 2.64%
10 Years rr_AverageAnnualReturnYear10 2.08%
Franklin Limited Maturity U.S. Government Securities Fund | Class A | After Taxes on Distributions and Sales
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.39%)
5 Years rr_AverageAnnualReturnYear05 2.56%
10 Years rr_AverageAnnualReturnYear10 2.09%
Franklin Limited Maturity U.S. Government Securities Fund | Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.50%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.17%
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.67%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 68
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 214
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 373
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 835
1 Year rr_AverageAnnualReturnYear01 1.79%
5 Years rr_AverageAnnualReturnYear05 4.36%
10 Years rr_AverageAnnualReturnYear10 3.67%
Franklin Real Return Fund
  
Risk/Return: rr_RiskReturnAbstract  
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock Total return that exceeds the rate of inflation over an economic cycle.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds. More information about these and other discounts is available from your financial professional and under “Your Account” on page 118 in the Fund's Prospectus and under “Buying and Selling Shares” on page 66 of the Fund’s Statement of Additional Information.
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)
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 most recent fiscal year, the Fund's portfolio turnover rate was 37.60% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 37.60%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin Templeton funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 100,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects adjustments made to the Fund's operating expenses due to the fee waiver and/or expense reimbursement by the investment manager and/or administrator for the 1 Year numbers only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption If you do not sell your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund seeks to allocate assets among investments to achieve the highest level of real return (total return less the rate of inflation) consistent with an acceptable level of risk. The Fund shifts its investments among the following general asset classes: inflation-indexed securities issued by governments, corporations and municipal issuers; investment grade and high-yield fixed-income securities issued by governments, corporations and municipal issuers; equity securities with high correlation to broad measures of inflation; and short-term non-dollar denominated debt securities.

Inflation-indexed securities are fixed-income securities that are structured to provide protection against inflation. The value of the security’s principal or the interest income paid on the security is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for Urban Consumers as the inflation measure. Inflation-indexed securities issued by a foreign government are generally adjusted to reflect a comparable inflation index, calculated by that government.

The Fund invests primarily in investment grade debt securities; however, the Fund may invest up to 20% of its total assets in below investment grade debt securities.

The Fund may also invest up to 25% of its total assets in foreign securities, including both securities denominated in foreign currencies and U.S. dollar denominated securities of foreign issuers. For purposes of pursuing its investment goal, the Fund may enter into currency-related transactions involving certain derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions may allow the Fund to reduce a specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies.

The Fund uses an active asset allocation strategy to try to achieve its goal of total return that exceeds the rate of inflation over an economic cycle by allocating its assets among securities in various market sectors based on the investment manager’s assessment of changing economic, global market, industry, and issuer conditions. The investment manager uses a “top-down” analysis of macroeconomic trends combined with a “bottom-up” fundamental analysis of market sectors, industries, and issuers to try to take advantage of varying sector reactions to economic events. The investment manager will evaluate country risk, business cycles, yield curves, and values between and within markets.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal market conditions, the Fund seeks to allocate assets among investments to achieve the highest level of real return (total return less the rate of inflation) consistent with an acceptable level of risk.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.

Interest Rate

When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. In general, securities with longer maturities are more sensitive to these interest rate changes.

Inflation-Indexed Securities

Inflation-indexed securities have a tendency to react to changes in real interest rates. Real interest rates represent nominal (stated) interest rates lowered by the anticipated effect of inflation. In general, the price of an inflation-indexed security can decrease when real interest rates increase, and can increase when real interest rates decrease. Interest payments on inflation-indexed securities will fluctuate as the principal and/or interest is adjusted for inflation and can be unpredictable.

Foreign Securities

Investing in foreign securities typically involves more risks than investing in U.S. securities, including risks related to currency exchange rates and policies, country or government specific issues, less favorable trading practices or regulation and greater price volatility. Certain of these risks also may apply to securities of U.S. companies with significant foreign operations.

Credit

An issuer of debt securities may fail to make interest payments and repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's credit rating may affect a security's value.

High-Yield Debt Securities

Issuers of lower-rated or "high-yield" debt securities are not as strong financially as those issuing higher credit quality debt securities. These issuers are more likely to encounter financial difficulties and are more vulnerable to changes in the relevant economy, such as a recession or a sustained period of rising interest rates, that could affect their ability to make interest and principal payments when due. The prices of high-yield debt securities generally fluctuate more than those of higher credit quality. High-yield debt securities are generally more illiquid (harder to sell) and harder to value.

Income

Because the Fund can only distribute what it earns, the Fund's distributions to shareholders may decline when prevailing interest rates fall or when the Fund experiences defaults on debt securities it holds.

Derivative Instruments

The performance of derivative instruments (including currency related derivatives) depends largely on the performance of an underlying currency, security or index and such instruments often have risks similar to their underlying instrument, in addition to other risks. Derivatives involve costs and can create economic leverage in the Fund's portfolio which may result in significant volatility and cause the Fund to participate in losses (as well as enable gains) in an amount that exceeds the Fund's initial investment. Other risks include illiquidity, mispricing or improper valuation of the derivative instrument, and imperfect correlation between the value of the derivative and the underlying instrument so that the Fund may not realize the intended benefits. When used for hedging, the change in value of the derivative may also not correlate specifically with the currency, security or other risk being hedged. With over-the-counter derivatives, there is the risk that the other party to the transaction will fail to perform.

Market

The market values of securities owned by the Fund will go up and down, sometimes rapidly or unpredictably. A security’s market value may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all securities. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.

Individual stock prices tend to go up and down more dramatically than those of other types of investments. A slower-growth or recessionary economic environment could have an adverse effect on the price of the various stocks held by the Fund.

Management

The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

The secondary index in the table below shows how the Fund's performance compares to a group of securities that aligns more closely with the Fund's investment strategies.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading CLASS A ANNUAL TOTAL RETURNS
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:Q1'083.88%
Worst Quarter:Q3'11-5.51%
Performance Table Heading rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS
(figures reflect sales charges)

For the periods ended December 31, 2011
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

Historical performance for Class C shares prior to their inception is based on the performance of Advisor Class shares. Class C performance has been adjusted to reflect differences in sales charges and 12b-1 expenses between classes.

The 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 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 A and after-tax returns for other classes will vary.
Franklin Real Return Fund | Barclays Capital U.S. TIPS Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.56%
5 Years rr_AverageAnnualReturnYear05 7.95%
Since Inception rr_AverageAnnualReturnSinceInception 6.24%
Franklin Real Return Fund | Consumer Price Index for All Urban Consumers - Non-Seasonally Adjusted (CPI-NSA)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.96%
5 Years rr_AverageAnnualReturnYear05 2.26%
Since Inception rr_AverageAnnualReturnSinceInception 2.37%
Franklin Real Return Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 4.25%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.41%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.39%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.06%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.15%) [10]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.91% [10],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 514
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 734
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 971
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,651
Annual Return 2005 rr_AnnualReturn2005 3.81%
Annual Return 2006 rr_AnnualReturn2006 5.20%
Annual Return 2007 rr_AnnualReturn2007 10.21%
Annual Return 2008 rr_AnnualReturn2008 (4.49%)
Annual Return 2009 rr_AnnualReturn2009 11.43%
Annual Return 2010 rr_AnnualReturn2010 6.03%
Annual Return 2011 rr_AnnualReturn2011 0.54%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2008
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 3.88%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2011
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.51%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (3.76%)
5 Years rr_AverageAnnualReturnYear05 3.67%
Since Inception rr_AverageAnnualReturnSinceInception 3.99%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 17, 2004
Franklin Real Return Fund | Class A | After Taxes on Distributions
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (5.17%)
5 Years rr_AverageAnnualReturnYear05 2.51%
Since Inception rr_AverageAnnualReturnSinceInception 2.76%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 17, 2004
Franklin Real Return Fund | Class A | After Taxes on Distributions and Sales
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.41%)
5 Years rr_AverageAnnualReturnYear05 2.47%
Since Inception rr_AverageAnnualReturnSinceInception 2.70%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 17, 2004
Franklin Real Return Fund | Class C
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.41%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.65%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.39%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.46%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.15%) [10]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.31% [10],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 233
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 447
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 783
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,733
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 133
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 447
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 783
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 1,733
1 Year rr_AverageAnnualReturnYear01 (0.80%)
5 Years rr_AverageAnnualReturnYear05 3.96%
Since Inception rr_AverageAnnualReturnSinceInception 3.93%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 17, 2004
Franklin Real Return Fund | Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum Cumulative Sales Charge (as a percentage of Offering Price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.41%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.39%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.81%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.15%) [10]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.66% [10],[4]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 67
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 244
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 435
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 988
1 Year rr_AverageAnnualReturnYear01 0.79%
5 Years rr_AverageAnnualReturnYear05 4.82%
Since Inception rr_AverageAnnualReturnSinceInception 4.89%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 17, 2004
[1] The investment manager has contractually agreed in advance to reduce its fee as a result of the Fund's investment in a Franklin Templeton money fund (acquired fund) for at least the next 12-month period. Contractual fee waiver and/or expense reimbursement agreements may not be terminated during the term set forth above.
[2] Since inception July 1, 2003.
[3] Since inception May 15, 2008.
[4] Total annual Fund operating expenses differ from the ratio of expenses to average net assets shown in the Financial Highlights, which reflect the operating expenses of the Fund and do not include acquired fund fees and expenses.
[5] New or additional investments into Class B are no longer permitted.
[6] The investment manager and administrator have contractually agreed to waive or assume certain expenses so that common expenses (excluding the Rule 12b-1 fees and acquired fund fees and expenses) for each class of the Fund do not exceed 0.65% (other than certain non-routine expenses), until February 28, 2013. The investment manager also has agreed in advance to reduce its fees as a result of the Fund's investment in a Franklin Templeton money fund (acquired fund) for at least the next 12-month period.
[7] The investment manager and administrator have contractually agreed to waive or assume certain expenses so that common expenses (excluding the Rule 12b-1 fees and acquired fund fees and expenses) for each class of the Fund do not exceed 0.63% (other than certain non-routine expenses), until February 28, 2013. The investment manager has agreed in advance to reduce its fees as a result of the Fund's investment in a Franklin Templeton money fund (acquired fund) for at least the next 12-month period.
[8] Since inception March 1, 2002.
[9] The investment manager and administrator have contractually agreed to waive or assume certain expenses so that common expenses (excluding Rule 12b-1 fees and acquired fund fees and expenses) for each class of the Fund do not exceed 0.71% (other than certain non-routine expenses), until February 28, 2013. The investment manager has contractually agreed in advance to reduce its fee as a result of the Fund's investment in a Franklin Templeton money fund (acquired fund) for at least the next 12-month period. Contractual fee waiver and/or expense reimbursement agreements may not be terminated during the terms set forth above.
[10] The investment manager and administrator have contractually agreed to waive or assume certain expenses so that common expenses (excluding Rule 12 b-1 fees and acquired fees and expenses) for each class of the Fund do not exceed 0.65% (other than certain non-routine expenses) until February 28, 2013.The investment manager has contractually agreed in advance to reduce its fee as a result of the Fund's investment in a Franklin Templeton money fund (acquired fund) for at least the next 12-month period. Contractual fee waiver and/or expense reimbursement agreements may not be terminated during the terms set forth above.