485BPOS

1933 Act File No.	2-60103
1940 Act File No.	811-2782

Form N-1A

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
	Pre-Effective Amendment No.
	Post-Effective Amendment No.	78
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
	Amendment No.	71

FEDERATED HIGH INCOME BOND FUND, INC.

(Exact Name of Registrant as Specified in Charter)

Federated Investors Funds

4000 Ericsson Drive

Warrendale, PA 15086-7561

(Address of Principal Executive Offices)

(412) 288-1900

(Registrant’s Telephone Number, including Area Code)

Peter J. Germain, Esquire

Federated Investors Tower

Pittsburgh, Pennsylvania 15222-3779

(Name and Address of Agent for Service)

It is proposed that this filing will become effective (check appropriate box):
X	immediately upon filing pursuant to paragraph (b)
	on	pursuant to paragraph (b)
	60 days after filing pursuant to paragraph (a)(1)
	on	pursuant to paragraph (a)(1)
	75 days after filing pursuant to paragraph (a)(2)
	on	pursuant to paragraph (a)(2) of Rule 485
If appropriate, check the following box:
	This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, and the Investment Company Act of 1940, the Registrant, Federated High Income Bond Fund, Inc., certifies that it meets all of the requirements for effectiveness of this Amendment to its Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Pittsburgh and Commonwealth of Pennsylvania, on the 13^th day of June, 2018.

FEDERATED HIGH INCOME BOND FUND, INC.

BY: /s/ George F. Magera

George F. Magera, Assistant Secretary

Pursuant to the requirements of the Securities Act of 1933, this Amendment to its Registration Statement has been signed below by the following person in the capacity and on the date indicated:

NAME	TITLE	DATE
BY: /s/ George F. Magera George F. Magera, Assistant Secretary	Attorney In Fact For the Persons Listed Below	June 13, 2018
J. Christopher Donahue*	President and Director (Principal Executive Officer)
Lori A. Hensler*	Treasurer (Principal Financial Officer/Principal Accounting Officer)
John T. Collins*	Director
John B. Fisher*	Director
G. Thomas Hough*	Director
Maureen Lally-Green*	Director
Charles F. Mansfield, Jr.*	Director
Thomas O’Neill*	Director
P. Jerome Richey*	Director
John S. Walsh*	Director
*By Power of Attorney

Federated High Income Bond Fund, Inc.

Class A Shares

Class B Shares

Class C Shares

Institutional Shares

Class R6 Shares

Class T Shares

Post-Effective Amendment No. 78

This Post-Effective Amendment is filed for the sole purpose of submitting the XBRL Interactive Data File exhibits for the Risk/Return Summary of the above-named Fund filed as part of Post-Effective Amendment No. 77 on May 25, 2018.  The exhibits filed herewith do not constitute the complete publicly filed disclosure for the Fund, and should be used in conjunction with the complete prospectus for the Fund.

Exhibit List for Interactive Data File Submissions.

EX-101.INS	INSTANCE
EX-101.SCH	SCHEMA
EX-101.CAL	CALCULATION LINKBASE
EX-101.DEF	DEFINITION LINKBASE
EX-101.LAB	LABEL LINKBASE
EX-101.PRE	PRESENTATION LINKBASE

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Mar. 31, 2018
Registrant Name	dei_EntityRegistrantName	FEDERATED HIGH INCOME BOND FUND INC
Central Index Key	dei_EntityCentralIndexKey	0000225318
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	May 25, 2018
Document Effective Date	dei_DocumentEffectiveDate	May 29, 2018
Prospectus Date	rr_ProspectusDate	May 31, 2018

XML

Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC

Federated High Income Bond Fund, Inc. (the "Fund")

RISK/RETURN SUMMARY: INVESTMENT OBJECTIVE

The Fund's investment objective is to seek high current income.

RISK/RETURN SUMMARY: FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold Class A Shares (A), Class B Shares (B), Class C Shares (C), Institutional Shares (IS) and Class R6 Shares (R6) of the Fund. You may qualify for certain sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain classes (e.g., A class) of Federated funds. More information about these and other discounts is available from your financial professional, in the "What Do Shares Cost?" section of the Prospectus on page 15 and in "Appendix B" to this Prospectus. If you purchase the Fund's IS or R6 Shares through a broker acting as an agent on behalf of its customers, you may be required to pay a commission to such a broker; such commissions, if any, are not reflected in the Example below.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - Class A B C IS R6 Shares - FEDERATED HIGH INCOME BOND FUND INC	A	B	C	IS	R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	4.50%	none	none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	none	5.50%	1.00%	none	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	none	none	none	none	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	none	none	none	none	none
Exchange Fee	none	none	none	none	none

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

Annual Fund Operating Expenses - Class A B C IS R6 Shares - FEDERATED HIGH INCOME BOND FUND INC		A	B	C	IS	R6
Management Fee		0.50%	0.50%	0.50%	0.50%	0.50%
Distribution (12b-1) Fee		none	0.75%	0.75%	none	none
Other Expenses		0.50%	0.53%	0.49%	0.24%	0.17%
Total Annual Fund Operating Expenses		1.00%	1.78%	1.74%	0.74%	0.67%
Fee Waivers and/or Expense Reimbursements	[1]	(0.10%)	(0.03%)	(0.03%)	(0.09%)	(0.03%)
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.90%	1.75%	1.71%	0.65%	0.64%

Example

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 for the time periods indicated and then redeem all of your Shares at the end of those periods. Expenses assuming no redemption are also shown. The Example also assumes that your investment has a 5% return each year and that operating expenses are as shown in the table above and remain the same. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

Expense Example - Class A B C IS R6 Shares - FEDERATED HIGH INCOME BOND FUND INC - USD ($)	1 Year	3 Years	5 Years	10 Years
A	547	754	978	1,620
B	731	960	1,164	1,889
C	277	548	944	2,052
IS	76	237	411	918
R6	68	214	373	835

Expense Example, No Redemption - Class A B C IS R6 Shares - FEDERATED HIGH INCOME BOND FUND INC - USD ($)	1 Year	3 Years	5 Years	10 Years
A	547	754	978	1,620
B	181	560	964	1,889
C	177	548	944	2,052
IS	76	237	411	918
R6	68	214	373	835

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 23% of the average value of its portfolio.

RISK/RETURN SUMMARY: INVESTMENTS, RISKS and PERFORMANCE

What are the Fund's Main Investment Strategies?

The Fund pursues its investment objective by investing primarily in a diversified portfolio of high-yield, lower-rated corporate bonds (also known as "junk bonds"). The Fund primarily invests in domestic high-yield, lower-rated bonds, but may invest a portion of its portfolio in securities of issuers based outside of the United States (so-called "foreign securities") in both emerging and developed markets. The Adviser does not target an average maturity for the Fund's portfolio.

The Fund may invest in derivative contracts and/or hybrid instruments to implement elements of its investment strategy. For example, the Fund may use derivative contracts or hybrid instruments to increase or decrease the portfolio's exposure to the investment(s) underlying the derivative contracts or hybrid instruments in an attempt to benefit from changes in the value of the underlying investment(s).

The Fund will invest its assets so that at least 80% of its net assets (plus any borrowings for investment purposes) are invested in lower-rated fixed-income investments. The Fund will notify shareholders at least 60 days in advance of any change in its investment policy that would enable the Fund to invest, under normal circumstances, less than 80% of its net assets (plus any borrowings for investment purposes) in lower-rated fixed-income investments.

What are the Main Risks of Investing in the Fund?

All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund. The primary factors that may reduce the Fund's returns include:

• Issuer Credit Risk. It is possible that interest or principal on securities will not be paid when due. Noninvestment-grade securities generally have a higher default risk than investment-grade securities. Such non-payment or default may reduce the value of the Fund's portfolio holdings, its share price and its performance.

• Counterparty Credit Risk. Credit risk includes the possibility that a party to a transaction involving the Fund will fail to meet its obligations. This could cause the Fund to lose the benefit of the transaction or prevent the Fund from selling or buying other securities to implement its investment strategy.

• Liquidity Risk. Liquidity of individual corporate bonds varies considerably. Low-grade corporate bonds have less liquidity than investment-grade securities, which means that it may be more difficult to buy or sell a security at a favorable price or time.

• Risk Associated with Noninvestment-Grade Securities. Securities rated below investment grade may be subject to greater interest rate, credit and liquidity risks than investment-grade securities. These securities are considered speculative with respect to the issuer's ability to pay interest and repay principal.

• Risk Related to the Economy. The value of the Fund's portfolio may decline in tandem with a drop in the overall value of the markets in which the Fund invests and/or other markets. Economic, political and financial conditions, or industry or economic trends and developments may, from time to time, and for varying periods of time, cause the Fund to experience volatility, illiquidity, shareholder redemptions, or other potentially adverse effects. Among other investments, lower-grade bonds and loans may be particularly sensitive to changes in the economy.

• Interest Rate Risk. Prices of fixed-income securities generally fall when interest rates rise. The longer the duration of a fixed-income security, the more susceptible it is to interest-rate risk. Recent and potential future changes in monetary policy made by central banks and/or their governments are likely to affect the level of interest rates.

• Call Risk. There is a possibility that an issuer of fixed-income securities in which the Fund may invest may redeem a security before maturity (a "call") at a price below its current market price. An increase in the likelihood of a call may reduce the security's price.

• Risk of Foreign Investing. Because the Fund invests in securities issued by foreign companies, the Fund's Share price may be more affected by foreign economic and political conditions, taxation policies and accounting and auditing standards than could otherwise be the case.

• Currency Risk. Exchange rates for currencies fluctuate daily. Foreign securities are normally denominated and traded in foreign currencies. As a result, the value of the Fund's foreign investments and the value of the shares may be affected favorably or unfavorably by changes in currency exchange rates relative to the U.S. dollar.

• Eurozone Related Risk. A number of countries in the European Union (EU) have experienced, and may continue to experience, severe economic and financial difficulties. Additional EU member countries may also fall subject to such difficulties. These events could negatively affect the value and liquidity of the Fund's investments in euro-denominated securities and derivatives contracts, securities of issuers located in the EU or with significant exposure to EU issuers or countries.

• Risk of Investing in Emerging Market Countries. Securities issued or traded in emerging markets generally entail greater risks than securities issued or traded in developed markets. Emerging market economies may also experience more severe downturns (with corresponding currency devaluations) than developed economies.

• Risk of Investing in Derivative Contracts and Hybrid Instruments. Derivative contracts and hybrid instruments involve risks different from, or possibly greater than, risks associated with investing directly in securities and other traditional investments. Specific risk issues related to the use of such contracts and instruments include valuation and tax issues, increased potential for losses and/or costs to the Fund, and a potential reduction in gains to the Fund. Each of these issues is described in greater detail in this Prospectus. Derivative contracts and hybrid instruments may also involve other risks described in this Prospectus such as interest rate, credit, currency, liquidity and leverage risks.

• Leverage Risk. Leverage risk is created when an investment exposes the Fund to a level of risk that exceeds the amount invested.

• Risk of Loss after Redemption. The Fund may also invest in trade finance loan instruments primarily by investing in other investment companies (which are not available for general investment by the public) that own those instruments, is advised by an affiliate of the Adviser and is structured as an extended payment fund (EPF). In the EPF, the Fund, as shareholder, will bear the risk of investment loss during the period between when shares of such EPF are presented to the transfer agent of the EPF for redemption and when the net asset value of the EPF is determined for payment of the redeemed EPF shares.

• Technology Risk. The Adviser uses various technologies in managing the Fund, consistent with its investment objective and strategy described in this Prospectus. For example, proprietary and third party data and systems are utilized to support decision making for the Fund.  Data imprecision, software or other technology malfunctions, programming inaccuracies and similar circumstances may impair the performance of these systems, which may negatively affect Fund performance.

The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.

Performance: Bar Chart and Table

Risk/Return Bar Chart

The bar chart and performance table below reflect historical performance data for the Fund and are intended to help you analyze the Fund's investment risks in light of its historical returns. The bar chart shows the variability of the Fund's A class total returns on a calendar year-by-year basis. The Average Annual Total Return Table shows returns for each class averaged over the stated periods, and includes comparative performance information. The Fund's performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results. Updated performance information for the Fund is available under the "Products" section at FederatedInvestors.com or by calling 1-800-341-7400.

Federated High Income Bond Fund, Inc. - A Class

The total returns shown in the bar chart do not reflect the payment of any sales charges or recurring shareholder account fees. If these charges or fees had been included, the returns shown would have been lower.

The Fund's A class total return for the three-month period from January 1, 2018 to March 31, 2018, was (1.33)%.

Within the periods shown in the bar chart, the Fund's A class highest quarterly return was 19.02% (quarter ended June 30, 2009). Its lowest quarterly return was (19.31)% (quarter ended December 31, 2008).

Average Annual Total Return Table

The Fund's IS and R6 classes commenced operations on January 27, 2017. For the periods prior to commencement of operations of the Fund's IS and R6 classes, the performance information shown below is for the Fund's A class. The performance of the A class has not been adjusted to reflect the expenses applicable to the IS and R6 classes since the IS and R6 classes have a lower expense ratio than the expense ratio of the A class. The performance of the A class has been adjusted to reflect the absence of sales charges.

In addition to Return Before Taxes, Return After Taxes is shown for the Fund's A class to illustrate the effect of federal taxes on Fund returns. After-tax returns are shown only for the A class, and after-tax returns for the B class, C class, IS class and R6 class will differ from those shown for the A class. Actual after-tax returns depend on each investor's personal tax situation, and are likely to differ from those shown. After-tax returns are calculated using a standard set of assumptions. The stated returns assume the highest historical federal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes. After-tax returns are not relevant to investors holding Shares through a 401(k) plan, an Individual Retirement Account or other tax-advantaged investment plan.

(For the Period Ended December 31, 2017)

Average Annual Total Returns - Class A B C IS R6 Shares - FEDERATED HIGH INCOME BOND FUND INC		1 Year	5 Years	10 Years
A		1.78%	4.15%	6.52%
A | Return After Taxes on Distributions		(0.51%)	1.65%	3.73%
A | Return After Taxes on Distributions and Sale of Fund Shares		0.98%	1.98%	3.79%
B		0.15%	3.99%	6.37%
C		4.69%	4.33%	6.20%
IS		6.65%	5.14%	7.02%
R6		6.70%	5.15%	7.02%
Bloomberg Barclays U.S. Corporate High Yield 2% Issuer Capped Index (reflects no deduction for fees, expenses or taxes)	[1]	7.50%	5.78%	8.09%
Lipper High Yield Funds Average	[2]	6.60%	4.64%	6.41%

[1] The Adviser and certain of its affiliates, on their own initiative, have agreed to waive certain amounts of their respective fees and/or reimburse expenses. Total annual fund operating expenses (excluding acquired fund fees and expenses, interest expense, extraordinary expenses and proxy-related expenses paid by the Fund, if any) paid by the Fund's A, B, C, IS and R6 classes (after the voluntary waivers and/or reimbursements) will not exceed 0.89%, 1.74%, 1.71%, 0.64% and 0.63% (the “Fee Limit”), respectively, up to but not including the later of (the “Termination Date”): (a) June 1, 2019; or (b) the date of the Fund's next effective Prospectus. While the Adviser and its affiliates currently do not anticipate terminating or increasing these arrangements prior to the Termination Date, these arrangements may only be terminated or the Fee Limit increased prior to the Termination Date with the agreement of the Fund's Board of Trustees.

[1] The Bloomberg Barclays U.S. Corporate High Yield 2% Issuer Capped Index is an issuer-constrained version of the Bloomberg Barclays U.S. Corporate High Yield Index that measures the market of USD-denominated, noninvestment-grade, fixed-rate, taxable corporate bonds. The index follows the same rules as the uncapped index but limits the exposure of each issuer to 2% of the total market value and redistributes any excess market value index-wide on a pro-rata basis

[2] Lipper figures represent the average of the total returns reported by all mutual funds designated by Lipper, Inc., as falling into the respective category and is not adjusted to reflect any sales charges.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	FEDERATED HIGH INCOME BOND FUND INC
Prospectus Date	rr_ProspectusDate	May 31, 2018
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Federated High Income Bond Fund, Inc. (the "Fund")
Objective [Heading]	rr_ObjectiveHeading	RISK/RETURN SUMMARY: INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund's investment objective is to seek high current income.
Expense [Heading]	rr_ExpenseHeading	RISK/RETURN SUMMARY: FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold Class A Shares (A), Class B Shares (B), Class C Shares (C), Institutional Shares (IS) and Class R6 Shares (R6) of the Fund. You may qualify for certain sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain classes (e.g., A class) of Federated funds. More information about these and other discounts is available from your financial professional, in the "What Do Shares Cost?" section of the Prospectus on page 15 and in "Appendix B" to this Prospectus. If you purchase the Fund's IS or R6 Shares through a broker acting as an agent on behalf of its customers, you may be required to pay a commission to such a broker; such commissions, if any, are not reflected in the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	June 1, 2019
Fee Waiver Or Reimbursement Over Assets, Later Of Termination Or Next Effective Prospectus	fhibf_FeeWaiverOrReimbursementOverAssetsLaterOfTerminationOrNextEffectiveProspectus	up to but not including the later of (the "Termination Date"): (a) June 1, 2019; or (b) the date of the Fund's next effective Prospectus.
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% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	23.00%
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for certain sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain classes (e.g., A class) of Federated funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 100,000
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	If you purchase the Fund's IS or R6 Shares through a broker acting as an agent on behalf of its customers, you may be required to pay a commission to such a broker; such commissions, if any, are not reflected in the Example below.
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 for the time periods indicated and then redeem all of your Shares at the end of those periods. Expenses assuming no redemption are also shown. The Example also assumes that your investment has a 5% return each year and that operating expenses are as shown in the table above and remain the same. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	RISK/RETURN SUMMARY: INVESTMENTS, RISKS and PERFORMANCE What are the Fund's Main Investment Strategies?
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund pursues its investment objective by investing primarily in a diversified portfolio of high-yield, lower-rated corporate bonds (also known as "junk bonds"). The Fund primarily invests in domestic high-yield, lower-rated bonds, but may invest a portion of its portfolio in securities of issuers based outside of the United States (so-called "foreign securities") in both emerging and developed markets. The Adviser does not target an average maturity for the Fund's portfolio. The Fund may invest in derivative contracts and/or hybrid instruments to implement elements of its investment strategy. For example, the Fund may use derivative contracts or hybrid instruments to increase or decrease the portfolio's exposure to the investment(s) underlying the derivative contracts or hybrid instruments in an attempt to benefit from changes in the value of the underlying investment(s). The Fund will invest its assets so that at least 80% of its net assets (plus any borrowings for investment purposes) are invested in lower-rated fixed-income investments. The Fund will notify shareholders at least 60 days in advance of any change in its investment policy that would enable the Fund to invest, under normal circumstances, less than 80% of its net assets (plus any borrowings for investment purposes) in lower-rated fixed-income investments.
Risk [Heading]	rr_RiskHeading	What are the Main Risks of Investing in the Fund?
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund. The primary factors that may reduce the Fund's returns include: Issuer Credit Risk. It is possible that interest or principal on securities will not be paid when due. Noninvestment-grade securities generally have a higher default risk than investment-grade securities. Such non-payment or default may reduce the value of the Fund's portfolio holdings, its share price and its performance. Counterparty Credit Risk. Credit risk includes the possibility that a party to a transaction involving the Fund will fail to meet its obligations. This could cause the Fund to lose the benefit of the transaction or prevent the Fund from selling or buying other securities to implement its investment strategy. Liquidity Risk. Liquidity of individual corporate bonds varies considerably. Low-grade corporate bonds have less liquidity than investment-grade securities, which means that it may be more difficult to buy or sell a security at a favorable price or time. Risk Associated with Noninvestment-Grade Securities. Securities rated below investment grade may be subject to greater interest rate, credit and liquidity risks than investment-grade securities. These securities are considered speculative with respect to the issuer's ability to pay interest and repay principal. Risk Related to the Economy. The value of the Fund's portfolio may decline in tandem with a drop in the overall value of the markets in which the Fund invests and/or other markets. Economic, political and financial conditions, or industry or economic trends and developments may, from time to time, and for varying periods of time, cause the Fund to experience volatility, illiquidity, shareholder redemptions, or other potentially adverse effects. Among other investments, lower-grade bonds and loans may be particularly sensitive to changes in the economy. Interest Rate Risk. Prices of fixed-income securities generally fall when interest rates rise. The longer the duration of a fixed-income security, the more susceptible it is to interest-rate risk. Recent and potential future changes in monetary policy made by central banks and/or their governments are likely to affect the level of interest rates. Call Risk. There is a possibility that an issuer of fixed-income securities in which the Fund may invest may redeem a security before maturity (a "call") at a price below its current market price. An increase in the likelihood of a call may reduce the security's price. Risk of Foreign Investing. Because the Fund invests in securities issued by foreign companies, the Fund's Share price may be more affected by foreign economic and political conditions, taxation policies and accounting and auditing standards than could otherwise be the case. Currency Risk. Exchange rates for currencies fluctuate daily. Foreign securities are normally denominated and traded in foreign currencies. As a result, the value of the Fund's foreign investments and the value of the shares may be affected favorably or unfavorably by changes in currency exchange rates relative to the U.S. dollar. Eurozone Related Risk. A number of countries in the European Union (EU) have experienced, and may continue to experience, severe economic and financial difficulties. Additional EU member countries may also fall subject to such difficulties. These events could negatively affect the value and liquidity of the Fund's investments in euro-denominated securities and derivatives contracts, securities of issuers located in the EU or with significant exposure to EU issuers or countries. Risk of Investing in Emerging Market Countries. Securities issued or traded in emerging markets generally entail greater risks than securities issued or traded in developed markets. Emerging market economies may also experience more severe downturns (with corresponding currency devaluations) than developed economies. Risk of Investing in Derivative Contracts and Hybrid Instruments. Derivative contracts and hybrid instruments involve risks different from, or possibly greater than, risks associated with investing directly in securities and other traditional investments. Specific risk issues related to the use of such contracts and instruments include valuation and tax issues, increased potential for losses and/or costs to the Fund, and a potential reduction in gains to the Fund. Each of these issues is described in greater detail in this Prospectus. Derivative contracts and hybrid instruments may also involve other risks described in this Prospectus such as interest rate, credit, currency, liquidity and leverage risks. Leverage Risk. Leverage risk is created when an investment exposes the Fund to a level of risk that exceeds the amount invested. Risk of Loss after Redemption. The Fund may also invest in trade finance loan instruments primarily by investing in other investment companies (which are not available for general investment by the public) that own those instruments, is advised by an affiliate of the Adviser and is structured as an extended payment fund (EPF). In the EPF, the Fund, as shareholder, will bear the risk of investment loss during the period between when shares of such EPF are presented to the transfer agent of the EPF for redemption and when the net asset value of the EPF is determined for payment of the redeemed EPF shares. Technology Risk. The Adviser uses various technologies in managing the Fund, consistent with its investment objective and strategy described in this Prospectus. For example, proprietary and third party data and systems are utilized to support decision making for the Fund.  Data imprecision, software or other technology malfunctions, programming inaccuracies and similar circumstances may impair the performance of these systems, which may negatively affect Fund performance. The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.
Risk Lose Money [Text]	rr_RiskLoseMoney	All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance: Bar Chart and Table Risk/Return Bar Chart
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and performance table below reflect historical performance data for the Fund and are intended to help you analyze the Fund's investment risks in light of its historical returns. The bar chart shows the variability of the Fund's A class total returns on a calendar year-by-year basis. The Average Annual Total Return Table shows returns for each class averaged over the stated periods, and includes comparative performance information. The Fund's performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results. Updated performance information for the Fund is available under the "Products" section at FederatedInvestors.com or by calling 1-800-341-7400.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and performance table below reflect historical performance data for the Fund and are intended to help you analyze the Fund's investment risks in light of its historical returns. The bar chart shows the variability of the Fund's A class total returns on a calendar year-by-year basis.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-800-341-7400
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	FederatedInvestors.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund's performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results.
Bar Chart [Heading]	rr_BarChartHeading	Federated High Income Bond Fund, Inc. - A Class
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	The total returns shown in the bar chart do not reflect the payment of any sales charges or recurring shareholder account fees. If these charges or fees had been included, the returns shown would have been lower.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The total returns shown in the bar chart do not reflect the payment of any sales charges or recurring shareholder account fees. If these charges or fees had been included, the returns shown would have been lower. The Fund's A class total return for the three-month period from January 1, 2018 to March 31, 2018, was (1.33)%. Within the periods shown in the bar chart, the Fund's A class highest quarterly return was 19.02% (quarter ended June 30, 2009). Its lowest quarterly return was (19.31)% (quarter ended December 31, 2008).
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Return Table
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using a standard set of assumptions. The stated returns assume the highest historical federal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	After-tax returns are not relevant to investors holding Shares through a 401(k) plan, an Individual Retirement Account or other tax-advantaged investment plan.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown only for the A class, and after-tax returns for the B class, C class, IS class and R6 class will differ from those shown for the A class.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The Fund's IS and R6 classes commenced operations on January 27, 2017. For the periods prior to commencement of operations of the Fund's IS and R6 classes, the performance information shown below is for the Fund's A class. The performance of the A class has not been adjusted to reflect the expenses applicable to the IS and R6 classes since the IS and R6 classes have a lower expense ratio than the expense ratio of the A class. The performance of the A class has been adjusted to reflect the absence of sales charges. In addition to Return Before Taxes, Return After Taxes is shown for the Fund's A class to illustrate the effect of federal taxes on Fund returns. After-tax returns are shown only for the A class, and after-tax returns for the B class, C class, IS class and R6 class will differ from those shown for the A class. Actual after-tax returns depend on each investor's personal tax situation, and are likely to differ from those shown. After-tax returns are calculated using a standard set of assumptions. The stated returns assume the highest historical federal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes. After-tax returns are not relevant to investors holding Shares through a 401(k) plan, an Individual Retirement Account or other tax-advantaged investment plan. (For the Period Ended December 31, 2017)
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC | A
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.50%
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.50%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.00%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.10%)	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	0.90%
1 Year	rr_ExpenseExampleYear01	$ 547
3 Years	rr_ExpenseExampleYear03	754
5 Years	rr_ExpenseExampleYear05	978
10 Years	rr_ExpenseExampleYear10	1,620
1 Year	rr_ExpenseExampleNoRedemptionYear01	547
3 Years	rr_ExpenseExampleNoRedemptionYear03	754
5 Years	rr_ExpenseExampleNoRedemptionYear05	978
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,620
2008	rr_AnnualReturn2008	(25.63%)
2009	rr_AnnualReturn2009	51.14%
2010	rr_AnnualReturn2010	14.07%
2011	rr_AnnualReturn2011	4.66%
2012	rr_AnnualReturn2012	14.28%
2013	rr_AnnualReturn2013	6.69%
2014	rr_AnnualReturn2014	2.14%
2015	rr_AnnualReturn2015	(3.28%)
2016	rr_AnnualReturn2016	14.31%
2017	rr_AnnualReturn2017	6.53%
Year to Date Return, Label	rr_YearToDateReturnLabel	The Fund's A class total return for the three-month period
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Mar. 31, 2018
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	(1.33%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest quarterly return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	19.02%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest quarterly return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(19.31%)
1 Year	rr_AverageAnnualReturnYear01	1.78%
5 Years	rr_AverageAnnualReturnYear05	4.15%
10 Years	rr_AverageAnnualReturnYear10	6.52%
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC | B
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	5.50%
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other Expenses	rr_OtherExpensesOverAssets	0.53%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.78%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.03%)	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	1.75%
1 Year	rr_ExpenseExampleYear01	$ 731
3 Years	rr_ExpenseExampleYear03	960
5 Years	rr_ExpenseExampleYear05	1,164
10 Years	rr_ExpenseExampleYear10	1,889
1 Year	rr_ExpenseExampleNoRedemptionYear01	181
3 Years	rr_ExpenseExampleNoRedemptionYear03	560
5 Years	rr_ExpenseExampleNoRedemptionYear05	964
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,889
1 Year	rr_AverageAnnualReturnYear01	0.15%
5 Years	rr_AverageAnnualReturnYear05	3.99%
10 Years	rr_AverageAnnualReturnYear10	6.37%
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC | C
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	1.00%
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other Expenses	rr_OtherExpensesOverAssets	0.49%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.74%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.03%)	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	1.71%
1 Year	rr_ExpenseExampleYear01	$ 277
3 Years	rr_ExpenseExampleYear03	548
5 Years	rr_ExpenseExampleYear05	944
10 Years	rr_ExpenseExampleYear10	2,052
1 Year	rr_ExpenseExampleNoRedemptionYear01	177
3 Years	rr_ExpenseExampleNoRedemptionYear03	548
5 Years	rr_ExpenseExampleNoRedemptionYear05	944
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 2,052
1 Year	rr_AverageAnnualReturnYear01	4.69%
5 Years	rr_AverageAnnualReturnYear05	4.33%
10 Years	rr_AverageAnnualReturnYear10	6.20%
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC | IS
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.24%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.74%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.09%)	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	0.65%
1 Year	rr_ExpenseExampleYear01	$ 76
3 Years	rr_ExpenseExampleYear03	237
5 Years	rr_ExpenseExampleYear05	411
10 Years	rr_ExpenseExampleYear10	918
1 Year	rr_ExpenseExampleNoRedemptionYear01	76
3 Years	rr_ExpenseExampleNoRedemptionYear03	237
5 Years	rr_ExpenseExampleNoRedemptionYear05	411
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 918
1 Year	rr_AverageAnnualReturnYear01	6.65%
5 Years	rr_AverageAnnualReturnYear05	5.14%
10 Years	rr_AverageAnnualReturnYear10	7.02%
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC | R6
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.17%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.67%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.03%)	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	0.64%
1 Year	rr_ExpenseExampleYear01	$ 68
3 Years	rr_ExpenseExampleYear03	214
5 Years	rr_ExpenseExampleYear05	373
10 Years	rr_ExpenseExampleYear10	835
1 Year	rr_ExpenseExampleNoRedemptionYear01	68
3 Years	rr_ExpenseExampleNoRedemptionYear03	214
5 Years	rr_ExpenseExampleNoRedemptionYear05	373
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 835
1 Year	rr_AverageAnnualReturnYear01	6.70%
5 Years	rr_AverageAnnualReturnYear05	5.15%
10 Years	rr_AverageAnnualReturnYear10	7.02%
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC | Return After Taxes on Distributions | A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	(0.51%)
5 Years	rr_AverageAnnualReturnYear05	1.65%
10 Years	rr_AverageAnnualReturnYear10	3.73%
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC | Return After Taxes on Distributions and Sale of Fund Shares | A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	0.98%
5 Years	rr_AverageAnnualReturnYear05	1.98%
10 Years	rr_AverageAnnualReturnYear10	3.79%
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC | Bloomberg Barclays U.S. Corporate High Yield 2% Issuer Capped Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	7.50%	[2]
5 Years	rr_AverageAnnualReturnYear05	5.78%	[2]
10 Years	rr_AverageAnnualReturnYear10	8.09%	[2]
Class A B C IS R6 Shares | FEDERATED HIGH INCOME BOND FUND INC | Lipper High Yield Funds Average
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	6.60%	[3]
5 Years	rr_AverageAnnualReturnYear05	4.64%	[3]
10 Years	rr_AverageAnnualReturnYear10	6.41%	[3]

[1] The Adviser and certain of its affiliates, on their own initiative, have agreed to waive certain amounts of their respective fees and/or reimburse expenses. Total annual fund operating expenses (excluding acquired fund fees and expenses, interest expense, extraordinary expenses and proxy-related expenses paid by the Fund, if any) paid by the Fund's A, B, C, IS and R6 classes (after the voluntary waivers and/or reimbursements) will not exceed 0.89%, 1.74%, 1.71%, 0.64% and 0.63% (the “Fee Limit”), respectively, up to but not including the later of (the “Termination Date”): (a) June 1, 2019; or (b) the date of the Fund's next effective Prospectus. While the Adviser and its affiliates currently do not anticipate terminating or increasing these arrangements prior to the Termination Date, these arrangements may only be terminated or the Fee Limit increased prior to the Termination Date with the agreement of the Fund's Board of Trustees.

[2] The Bloomberg Barclays U.S. Corporate High Yield 2% Issuer Capped Index is an issuer-constrained version of the Bloomberg Barclays U.S. Corporate High Yield Index that measures the market of USD-denominated, noninvestment-grade, fixed-rate, taxable corporate bonds. The index follows the same rules as the uncapped index but limits the exposure of each issuer to 2% of the total market value and redistributes any excess market value index-wide on a pro-rata basis

[3] Lipper figures represent the average of the total returns reported by all mutual funds designated by Lipper, Inc., as falling into the respective category and is not adjusted to reflect any sales charges.

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Class T Shares | FEDERATED HIGH INCOME BOND FUND INC

Federated High Income Bond Fund, Inc. (the "Fund")

RISK/RETURN SUMMARY: INVESTMENT OBJECTIVE

The Fund's investment objective is to seek high current income.

RISK/RETURN SUMMARY: FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold Class T Shares (T) of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	Class T Shares FEDERATED HIGH INCOME BOND FUND INC T
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	2.50%
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	none
Exchange Fee	none

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

Annual Fund Operating Expenses	Class T Shares FEDERATED HIGH INCOME BOND FUND INC T
Management Fee	0.50%
Distribution (12b-1) Fee	none
Other Expenses	0.50%	[1]
Total Annual Fund Operating Expenses	1.00%
Fee Waivers and/or Expense Reimbursements	(0.10%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	0.90%

Example

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 for the time periods indicated and then redeem all of your Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that operating expenses are as shown in the table above and remain the same. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

Expense Example	Class T Shares FEDERATED HIGH INCOME BOND FUND INC T USD ($)
1 Year	$ 349
3 Years	560
5 Years	789
10 Years	$ 1,444

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 23% of the average value of its portfolio.

RISK/RETURN SUMMARY: INVESTMENTS, RISKS and PERFORMANCE

What are the Fund's Main Investment Strategies?

The Fund pursues its investment objective by investing primarily in a diversified portfolio of high-yield, lower-rated corporate bonds (also known as "junk bonds"). The Fund primarily invests in domestic high-yield, lower-rated bonds, but may invest a portion of its portfolio in securities of issuers based outside of the United States (so-called "foreign securities") in both emerging and developed markets. The Adviser does not target an average maturity for the Fund's portfolio.

The Fund may invest in derivative contracts and/or hybrid instruments to implement elements of its investment strategy. For example, the Fund may use derivative contracts or hybrid instruments to increase or decrease the portfolio's exposure to the investment(s) underlying the derivative contracts or hybrid instruments in an attempt to benefit from changes in the value of the underlying investment(s).

The Fund will invest its assets so that at least 80% of its net assets (plus any borrowings for investment purposes) are invested in lower-rated fixed-income investments. The Fund will notify shareholders at least 60 days in advance of any change in its investment policy that would enable the Fund to invest, under normal circumstances, less than 80% of its net assets (plus any borrowings for investment purposes) in lower-rated fixed-income investments.

What are the Main Risks of Investing in the Fund?

All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund. The primary factors that may reduce the Fund's returns include:

• Issuer Credit Risk. It is possible that interest or principal on securities will not be paid when due. Noninvestment-grade securities generally have a higher default risk than investment-grade securities. Such non-payment or default may reduce the value of the Fund's portfolio holdings, its share price and its performance.

• Counterparty Credit Risk. Credit risk includes the possibility that a party to a transaction involving the Fund will fail to meet its obligations. This could cause the Fund to lose the benefit of the transaction or prevent the Fund from selling or buying other securities to implement its investment strategy.

• Liquidity Risk. Liquidity of individual corporate bonds varies considerably. Low-grade corporate bonds have less liquidity than investment-grade securities, which means that it may be more difficult to buy or sell a security at a favorable price or time.

• Risk Associated with Noninvestment-Grade Securities. Securities rated below investment grade may be subject to greater interest rate, credit and liquidity risks than investment-grade securities. These securities are considered speculative with respect to the issuer's ability to pay interest and repay principal.

• Risk Related to the Economy. The value of the Fund's portfolio may decline in tandem with a drop in the overall value of the markets in which the Fund invests and/or other markets. Economic, political and financial conditions, or industry or economic trends and developments may, from time to time, and for varying periods of time, cause the Fund to experience volatility, illiquidity, shareholder redemptions, or other potentially adverse effects. Among other investments, lower-grade bonds and loans may be particularly sensitive to changes in the economy.

• Interest Rate Risk. Prices of fixed-income securities generally fall when interest rates rise. The longer the duration of a fixed-income security, the more susceptible it is to interest-rate risk. Recent and potential future changes in monetary policy made by central banks and/or their governments are likely to affect the level of interest rates.

• Call Risk. There is a possibility that an issuer of fixed-income securities in which the Fund may invest may redeem a security before maturity (a "call") at a price below its current market price. An increase in the likelihood of a call may reduce the security's price.

• Risk of Foreign Investing. Because the Fund invests in securities issued by foreign companies, the Fund's Share price may be more affected by foreign economic and political conditions, taxation policies and accounting and auditing standards than could otherwise be the case.

• Currency Risk. Exchange rates for currencies fluctuate daily. Foreign securities are normally denominated and traded in foreign currencies. As a result, the value of the Fund's foreign investments and the value of the shares may be affected favorably or unfavorably by changes in currency exchange rates relative to the U.S. dollar.

• Eurozone Related Risk. A number of countries in the European Union (EU) have experienced, and may continue to experience, severe economic and financial difficulties. Additional EU member countries may also fall subject to such difficulties. These events could negatively affect the value and liquidity of the Fund's investments in euro-denominated securities and derivatives contracts, securities of issuers located in the EU or with significant exposure to EU issuers or countries.

• Risk of Investing in Emerging Market Countries. Securities issued or traded in emerging markets generally entail greater risks than securities issued or traded in developed markets. Emerging market economies may also experience more severe downturns (with corresponding currency devaluations) than developed economies.

• Risk of Investing in Derivative Contracts and Hybrid Instruments. Derivative contracts and hybrid instruments involve risks different from, or possibly greater than, risks associated with investing directly in securities and other traditional investments. Specific risk issues related to the use of such contracts and instruments include valuation and tax issues, increased potential for losses and/or costs to the Fund, and a potential reduction in gains to the Fund. Each of these issues is described in greater detail in this Prospectus. Derivative contracts and hybrid instruments may also involve other risks described in this Prospectus such as interest rate, credit, currency, liquidity and leverage risks.

• Leverage Risk. Leverage risk is created when an investment exposes the Fund to a level of risk that exceeds the amount invested.

• Risk of Loss after Redemption. The Fund may also invest in trade finance loan instruments primarily by investing in other investment companies (which are not available for general investment by the public) that own those instruments, is advised by an affiliate of the Adviser and is structured as an extended payment fund (EPF). In the EPF, the Fund, as shareholder, will bear the risk of investment loss during the period between when shares of such EPF are presented to the transfer agent of the EPF for redemption and when the net asset value of the EPF is determined for payment of the redeemed EPF shares.

• Technology Risk. The Adviser uses various technologies in managing the Fund, consistent with its investment objective and strategy described in this Prospectus. For example, proprietary and third party data and systems are utilized to support decision making for the Fund.  Data imprecision, software or other technology malfunctions, programming inaccuracies and similar circumstances may impair the performance of these systems, which may negatively affect Fund performance.

The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.

Performance: Bar Chart and Table

Risk/Return Bar Chart

The bar chart and performance table below reflect historical performance data for the Fund. The Fund's Class T Shares ("T class") has not yet commenced operations. The Fund currently offers five other classes of shares: Class A Shares ("A class"), Class B Shares, Class C Shares, Institutional Shares and R6 Shares. The T class performance information shown below is for the Fund's A class and has not been adjusted since the T class is expected to have the same net expense ratio as the A class.

The bar chart and performance table below are intended to help you analyze the Fund's investment risks in light of its historical returns. The bar chart shows the variability of the Fund's T class total returns on a calendar year-by-year basis. The Average Annual Total Return Table shows returns averaged over the stated periods, and includes comparative performance information. The Fund's performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results. Updated performance information for the Fund is available under the "Products" section at FederatedInvestors.com or by calling 1-800-341-7400.

Federated High Income Bond Fund, Inc. - T Class

The total returns shown in the bar chart do not reflect the payment of any sales charges or recurring shareholder account fees. If these charges or fees had been included, the returns shown would have been lower.

The Fund's T class total return for the three-month period from January 1, 2018 to March 31, 2018, was (1.33)%.

Within the periods shown in the bar chart, the Fund's T class highest quarterly return was 19.02% (quarter ended June 30, 2009). Its lowest quarterly return was (19.31)% (quarter ended December 31, 2008).

Average Annual Total Return Table

The Fund's T class has not yet commenced operations. The T class performance information shown below is for the Fund's A class as described above.

In addition to Return Before Taxes, Return After Taxes is shown for the Fund's T class to illustrate the effect of federal taxes on Fund returns. Actual after-tax returns depend on each investor's personal tax situation, and are likely to differ from those shown. After-tax returns are calculated using a standard set of assumptions. The stated returns assume the highest historical federal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes. After-tax returns are not relevant to investors holding Shares through a 401(k) plan, an Individual Retirement Account or other tax-advantaged investment plan.

(For the Period Ended December 31, 2017)

Average Annual Total Returns - Class T Shares - FEDERATED HIGH INCOME BOND FUND INC		1 Year	5 Years	10 Years
T		1.78%	4.15%	6.52%
T | Return After Taxes on Distributions		(0.51%)	1.65%	3.73%
T | Return After Taxes on Distributions and Sale of Fund Shares		0.98%	1.98%	3.79%
Bloomberg Barclays U.S. Corporate High Yield 2% Issuer Capped Index (reflects no deduction for fees, expenses or taxes)	[1]	7.50%	5.78%	8.09%
Lipper High Yield Funds Average	[2]	6.60%	4.64%	6.41%

[1] Because the Fund's T Shares are new, "Other Expenses" are based on estimated amounts for the current fiscal year.

[2] The Adviser and certain of its affiliates, on their own initiative, have agreed to waive certain amounts of their respective fees and/or reimburse expenses. Total annual fund operating expenses (excluding acquired fund fees and expenses, interest expense, extraordinary expenses and proxy-related expenses paid by the Fund, if any) paid by the Fund's T class (after the voluntary waivers and/or reimbursements) will not exceed 0.89% (the "Fee Limit") up to but not including the later of (the "Termination Date"): (a) June 1, 2019; or (b) the date of the Fund's next effective Prospectus. While the Adviser and its affiliates currently do not anticipate terminating or increasing these arrangements prior to the Termination Date, these arrangements may only be terminated or the Fee Limit increased prior to the Termination Date with the agreement of the Fund's Board of Trustees.

[1] The Bloomberg Barclays U.S. Corporate High Yield 2% Issuer Capped Index is an issuer-constrained version of the Bloomberg Barclays U.S. Corporate High Yield Index that measures the market of USD-denominated, noninvestment-grade, fixed-rate, taxable corporate bonds. The index follows the same rules as the uncapped index but limits the exposure of each issuer to 2% of the total market value and redistributes any excess market value index-wide on a pro-rata basis.

[2] Lipper figures represent the average of the total returns reported by all mutual funds designated by Lipper, Inc., as falling into the respective category and is not adjusted to reflect any sales charges.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	FEDERATED HIGH INCOME BOND FUND INC
Prospectus Date	rr_ProspectusDate	May 31, 2018
Class T Shares | FEDERATED HIGH INCOME BOND FUND INC
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Federated High Income Bond Fund, Inc. (the "Fund")
Objective [Heading]	rr_ObjectiveHeading	RISK/RETURN SUMMARY: INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund's investment objective is to seek high current income.
Expense [Heading]	rr_ExpenseHeading	RISK/RETURN SUMMARY: FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold Class T Shares (T) of the Fund.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	June 1, 2019
Fee Waiver Or Reimbursement Over Assets, Later Of Termination Or Next Effective Prospectus	fhibf_FeeWaiverOrReimbursementOverAssetsLaterOfTerminationOrNextEffectiveProspectus	up to but not including the later of (the "Termination Date"): (a) June 1, 2019; or (b) the date of the Fund's next effective Prospectus.
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% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	23.00%
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	Because the Fund's T Shares are new, "Other Expenses" are based on estimated amounts for the current fiscal year.
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 for the time periods indicated and then redeem all of your Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that operating expenses are as shown in the table above and remain the same. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	RISK/RETURN SUMMARY: INVESTMENTS, RISKS and PERFORMANCE What are the Fund's Main Investment Strategies?
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund pursues its investment objective by investing primarily in a diversified portfolio of high-yield, lower-rated corporate bonds (also known as "junk bonds"). The Fund primarily invests in domestic high-yield, lower-rated bonds, but may invest a portion of its portfolio in securities of issuers based outside of the United States (so-called "foreign securities") in both emerging and developed markets. The Adviser does not target an average maturity for the Fund's portfolio. The Fund may invest in derivative contracts and/or hybrid instruments to implement elements of its investment strategy. For example, the Fund may use derivative contracts or hybrid instruments to increase or decrease the portfolio's exposure to the investment(s) underlying the derivative contracts or hybrid instruments in an attempt to benefit from changes in the value of the underlying investment(s). The Fund will invest its assets so that at least 80% of its net assets (plus any borrowings for investment purposes) are invested in lower-rated fixed-income investments. The Fund will notify shareholders at least 60 days in advance of any change in its investment policy that would enable the Fund to invest, under normal circumstances, less than 80% of its net assets (plus any borrowings for investment purposes) in lower-rated fixed-income investments.
Risk [Heading]	rr_RiskHeading	What are the Main Risks of Investing in the Fund?
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund. The primary factors that may reduce the Fund's returns include: Issuer Credit Risk. It is possible that interest or principal on securities will not be paid when due. Noninvestment-grade securities generally have a higher default risk than investment-grade securities. Such non-payment or default may reduce the value of the Fund's portfolio holdings, its share price and its performance. Counterparty Credit Risk. Credit risk includes the possibility that a party to a transaction involving the Fund will fail to meet its obligations. This could cause the Fund to lose the benefit of the transaction or prevent the Fund from selling or buying other securities to implement its investment strategy. Liquidity Risk. Liquidity of individual corporate bonds varies considerably. Low-grade corporate bonds have less liquidity than investment-grade securities, which means that it may be more difficult to buy or sell a security at a favorable price or time. Risk Associated with Noninvestment-Grade Securities. Securities rated below investment grade may be subject to greater interest rate, credit and liquidity risks than investment-grade securities. These securities are considered speculative with respect to the issuer's ability to pay interest and repay principal. Risk Related to the Economy. The value of the Fund's portfolio may decline in tandem with a drop in the overall value of the markets in which the Fund invests and/or other markets. Economic, political and financial conditions, or industry or economic trends and developments may, from time to time, and for varying periods of time, cause the Fund to experience volatility, illiquidity, shareholder redemptions, or other potentially adverse effects. Among other investments, lower-grade bonds and loans may be particularly sensitive to changes in the economy. Interest Rate Risk. Prices of fixed-income securities generally fall when interest rates rise. The longer the duration of a fixed-income security, the more susceptible it is to interest-rate risk. Recent and potential future changes in monetary policy made by central banks and/or their governments are likely to affect the level of interest rates. Call Risk. There is a possibility that an issuer of fixed-income securities in which the Fund may invest may redeem a security before maturity (a "call") at a price below its current market price. An increase in the likelihood of a call may reduce the security's price. Risk of Foreign Investing. Because the Fund invests in securities issued by foreign companies, the Fund's Share price may be more affected by foreign economic and political conditions, taxation policies and accounting and auditing standards than could otherwise be the case. Currency Risk. Exchange rates for currencies fluctuate daily. Foreign securities are normally denominated and traded in foreign currencies. As a result, the value of the Fund's foreign investments and the value of the shares may be affected favorably or unfavorably by changes in currency exchange rates relative to the U.S. dollar. Eurozone Related Risk. A number of countries in the European Union (EU) have experienced, and may continue to experience, severe economic and financial difficulties. Additional EU member countries may also fall subject to such difficulties. These events could negatively affect the value and liquidity of the Fund's investments in euro-denominated securities and derivatives contracts, securities of issuers located in the EU or with significant exposure to EU issuers or countries. Risk of Investing in Emerging Market Countries. Securities issued or traded in emerging markets generally entail greater risks than securities issued or traded in developed markets. Emerging market economies may also experience more severe downturns (with corresponding currency devaluations) than developed economies. Risk of Investing in Derivative Contracts and Hybrid Instruments. Derivative contracts and hybrid instruments involve risks different from, or possibly greater than, risks associated with investing directly in securities and other traditional investments. Specific risk issues related to the use of such contracts and instruments include valuation and tax issues, increased potential for losses and/or costs to the Fund, and a potential reduction in gains to the Fund. Each of these issues is described in greater detail in this Prospectus. Derivative contracts and hybrid instruments may also involve other risks described in this Prospectus such as interest rate, credit, currency, liquidity and leverage risks. Leverage Risk. Leverage risk is created when an investment exposes the Fund to a level of risk that exceeds the amount invested. Risk of Loss after Redemption. The Fund may also invest in trade finance loan instruments primarily by investing in other investment companies (which are not available for general investment by the public) that own those instruments, is advised by an affiliate of the Adviser and is structured as an extended payment fund (EPF). In the EPF, the Fund, as shareholder, will bear the risk of investment loss during the period between when shares of such EPF are presented to the transfer agent of the EPF for redemption and when the net asset value of the EPF is determined for payment of the redeemed EPF shares. Technology Risk. The Adviser uses various technologies in managing the Fund, consistent with its investment objective and strategy described in this Prospectus. For example, proprietary and third party data and systems are utilized to support decision making for the Fund.  Data imprecision, software or other technology malfunctions, programming inaccuracies and similar circumstances may impair the performance of these systems, which may negatively affect Fund performance. The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.
Risk Lose Money [Text]	rr_RiskLoseMoney	All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance: Bar Chart and Table Risk/Return Bar Chart
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and performance table below reflect historical performance data for the Fund. The Fund's Class T Shares ("T class") has not yet commenced operations. The Fund currently offers five other classes of shares: Class A Shares ("A class"), Class B Shares, Class C Shares, Institutional Shares and R6 Shares. The T class performance information shown below is for the Fund's A class and has not been adjusted since the T class is expected to have the same net expense ratio as the A class. The bar chart and performance table below are intended to help you analyze the Fund's investment risks in light of its historical returns. The bar chart shows the variability of the Fund's T class total returns on a calendar year-by-year basis. The Average Annual Total Return Table shows returns averaged over the stated periods, and includes comparative performance information. The Fund's performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results. Updated performance information for the Fund is available under the "Products" section at FederatedInvestors.com or by calling 1-800-341-7400.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and performance table below reflect historical performance data for the Fund. The bar chart and performance table below are intended to help you analyze the Fund's investment risks in light of its historical returns. The bar chart shows the variability of the Fund's T class total returns on a calendar year-by-year basis.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-800-341-7400
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	FederatedInvestors.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund's performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results.
Bar Chart [Heading]	rr_BarChartHeading	Federated High Income Bond Fund, Inc. - T Class
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	The total returns shown in the bar chart do not reflect the payment of any sales charges or recurring shareholder account fees. If these charges or fees had been included, the returns shown would have been lower.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The total returns shown in the bar chart do not reflect the payment of any sales charges or recurring shareholder account fees. If these charges or fees had been included, the returns shown would have been lower. The Fund's T class total return for the three-month period from January 1, 2018 to March 31, 2018, was (1.33)%. Within the periods shown in the bar chart, the Fund's T class highest quarterly return was 19.02% (quarter ended June 30, 2009). Its lowest quarterly return was (19.31)% (quarter ended December 31, 2008).
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Return Table
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using a standard set of assumptions. The stated returns assume the highest historical federal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	After-tax returns are not relevant to investors holding Shares through a 401(k) plan, an Individual Retirement Account or other tax-advantaged investment plan.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The Fund's T class has not yet commenced operations. The T class performance information shown below is for the Fund's A class as described above. In addition to Return Before Taxes, Return After Taxes is shown for the Fund's T class to illustrate the effect of federal taxes on Fund returns. Actual after-tax returns depend on each investor's personal tax situation, and are likely to differ from those shown. After-tax returns are calculated using a standard set of assumptions. The stated returns assume the highest historical federal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes. After-tax returns are not relevant to investors holding Shares through a 401(k) plan, an Individual Retirement Account or other tax-advantaged investment plan. (For the Period Ended December 31, 2017)
Class T Shares | FEDERATED HIGH INCOME BOND FUND INC | T
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	2.50%
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.50%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.00%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.10%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	0.90%
1 Year	rr_ExpenseExampleYear01	$ 349
3 Years	rr_ExpenseExampleYear03	560
5 Years	rr_ExpenseExampleYear05	789
10 Years	rr_ExpenseExampleYear10	$ 1,444
2008	rr_AnnualReturn2008	(25.63%)
2009	rr_AnnualReturn2009	51.14%
2010	rr_AnnualReturn2010	14.07%
2011	rr_AnnualReturn2011	4.66%
2012	rr_AnnualReturn2012	14.28%
2013	rr_AnnualReturn2013	6.69%
2014	rr_AnnualReturn2014	2.14%
2015	rr_AnnualReturn2015	(3.28%)
2016	rr_AnnualReturn2016	14.31%
2017	rr_AnnualReturn2017	6.53%
Year to Date Return, Label	rr_YearToDateReturnLabel	The Fund's T class total return for the three-month period
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Mar. 31, 2018
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	(1.33%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest quarterly return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	19.02%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest quarterly return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(19.31%)
1 Year	rr_AverageAnnualReturnYear01	1.78%
5 Years	rr_AverageAnnualReturnYear05	4.15%
10 Years	rr_AverageAnnualReturnYear10	6.52%
Class T Shares | FEDERATED HIGH INCOME BOND FUND INC | Return After Taxes on Distributions | T
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	(0.51%)
5 Years	rr_AverageAnnualReturnYear05	1.65%
10 Years	rr_AverageAnnualReturnYear10	3.73%
Class T Shares | FEDERATED HIGH INCOME BOND FUND INC | Return After Taxes on Distributions and Sale of Fund Shares | T
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	0.98%
5 Years	rr_AverageAnnualReturnYear05	1.98%
10 Years	rr_AverageAnnualReturnYear10	3.79%
Class T Shares | FEDERATED HIGH INCOME BOND FUND INC | Bloomberg Barclays U.S. Corporate High Yield 2% Issuer Capped Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	7.50%	[3]
5 Years	rr_AverageAnnualReturnYear05	5.78%	[3]
10 Years	rr_AverageAnnualReturnYear10	8.09%	[3]
Class T Shares | FEDERATED HIGH INCOME BOND FUND INC | Lipper High Yield Funds Average
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	6.60%	[4]
5 Years	rr_AverageAnnualReturnYear05	4.64%	[4]
10 Years	rr_AverageAnnualReturnYear10	6.41%	[4]

[1] Because the Fund's T Shares are new, "Other Expenses" are based on estimated amounts for the current fiscal year.

[2] The Adviser and certain of its affiliates, on their own initiative, have agreed to waive certain amounts of their respective fees and/or reimburse expenses. Total annual fund operating expenses (excluding acquired fund fees and expenses, interest expense, extraordinary expenses and proxy-related expenses paid by the Fund, if any) paid by the Fund's T class (after the voluntary waivers and/or reimbursements) will not exceed 0.89% (the "Fee Limit") up to but not including the later of (the "Termination Date"): (a) June 1, 2019; or (b) the date of the Fund's next effective Prospectus. While the Adviser and its affiliates currently do not anticipate terminating or increasing these arrangements prior to the Termination Date, these arrangements may only be terminated or the Fee Limit increased prior to the Termination Date with the agreement of the Fund's Board of Trustees.

[3] The Bloomberg Barclays U.S. Corporate High Yield 2% Issuer Capped Index is an issuer-constrained version of the Bloomberg Barclays U.S. Corporate High Yield Index that measures the market of USD-denominated, noninvestment-grade, fixed-rate, taxable corporate bonds. The index follows the same rules as the uncapped index but limits the exposure of each issuer to 2% of the total market value and redistributes any excess market value index-wide on a pro-rata basis.

[4] Lipper figures represent the average of the total returns reported by all mutual funds designated by Lipper, Inc., as falling into the respective category and is not adjusted to reflect any sales charges.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	FEDERATED HIGH INCOME BOND FUND INC
Prospectus Date	rr_ProspectusDate	May 31, 2018
Document Creation Date	dei_DocumentCreationDate	May 25, 2018