485BPOS

As filed with the Securities and Exchange Commission on October 12, 2012.

1933 Act Registration No. 333-16615

1940 Act Registration No. 811-07751

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	¨
Pre-Effective Amendment No.	¨
Post-Effective Amendment No. 22	x
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	¨
Amendment No. 25	x

(Check appropriate box or boxes)

Nuveen Multistate Trust IV

(Exact Name of Registrant as Specified in Declaration of Trust)

333 West Wacker Drive, Chicago, Illinois	60606
(Address of Principal Executive Offices)	(Zip Code)

Registrant’s Telephone Number, Including Area Code: (312) 917-7700

Kevin J. McCarthy Vice President and Secretary 333 West Wacker Drive Chicago, Illinois 60606 (Name and Address of Agent for Service) Copies to: Eric F. Fess Chapman and Cutler LLP 111 West Monroe Street Chicago, Illinois 60603

Approximate Date of Proposed Public Offering: As soon as practicable after effectiveness.

It is proposed that this filing will become effective (check appropriate box):

x	immediately upon filing pursuant to paragraph (b)	¨	on (date) pursuant to paragraph (a)(1)
¨	on (date) pursuant to paragraph (b)	¨	75 days after filing pursuant to paragraph (a)(2)
¨	60 days after filing pursuant to paragraph (a)(1)	¨	on (date) 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.

This filing relates solely to the following Funds, each a series of the Registrant:

Nuveen Kansas Municipal Bond Fund

Nuveen Kentucky Municipal Bond Fund

Nuveen Michigan Municipal Bond Fund

Nuveen Missouri Municipal Bond Fund

Nuveen Ohio Municipal Bond Fund

Nuveen Wisconsin Municipal Bond Fund

EXHIBIT INDEX

Exhibit Number	Exhibit
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase
101.DEF	XBRL Taxonomy Extension Definition Linkbase
101.LAB	XBRL Taxonomy Extension Labels Linkbase
101.PRE	XBRL Taxonomy Extension Presentation Linkbase

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this registration statement under Rule 485(b) under the Securities Act of 1933, as amended, and has duly caused this post-effective amendment to its registration statement to be signed on its behalf by the undersigned, duly authorized, in the City of Chicago and State of Illinois, on the 12^th day of October, 2012.

NUVEEN MULTISTATE TRUST IV

/S/    KEVIN J. MCCARTHY        

Kevin J. McCarthy

Vice President and Secretary

Pursuant to the requirements of the Securities Act of 1933, as amended, this post-effective amendment to the registration statement has been signed below by the following persons in the capacities and on the date indicated.

Signature	Title			Date
/S/    STEPHEN D. FOY          STEPHEN D. FOY	Vice President and Controller (principal financial and accounting officer)			October 12, 2012
/S/    GIFFORD R. ZIMMERMAN          GIFFORD R. ZIMMERMAN	Chief Administrative Officer (principal executive officer)			October 12, 2012
ROBERT P. BREMNER*	Chairman of the Board and Trustee	ý ï ï ï ï ï ï ï ï ï ï ï ï ï þ ï ï ï ï ï ï ï ï ï ï ï ï ï þ	By:	/S/    KEVIN J. MCCARTHY         KEVIN J. MCCARTHY Attorney-in-Fact October 12, 2012
JOHN P. AMBOIAN*	Trustee
JACK B. EVANS*	Trustee
WILLIAM C. HUNTER*	Trustee
DAVID J. KUNDERT*	Trustee
WILLIAM J. SCHNEIDER*	Trustee
JUDITH M. STOCKDALE*	Trustee
CAROLE E. STONE*	Trustee
VIRGINIA L. STRINGER*	Trustee
TERENCE J. TOTH*	Trustee

An original power of attorney authorizing, among others, Kevin J. McCarthy and Gifford R. Zimmerman to execute this registration statement, and amendments thereto, for each of the trustees of the Registrant on whose behalf this registration statement is filed, has been executed and has previously been filed with the Securities and Exchange Commission and is incorporated by reference herein.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	NUVEEN MULTISTATE TRUST IV
Prospectus Date	rr_ProspectusDate	Sep. 28, 2012
Nuveen Missouri Municipal Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Nuveen Missouri Municipal Bond Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Missouri state and, in some cases, Missouri local income taxes as is consistent with preservation of capital.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 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 8% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	8.00%
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	The contingent deferred sales charge (“CDSC”) on Class B shares declines over a six-year period from purchase. The CDSC on Class C shares applies only to redemptions within 12 months of purchase.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	50,000
Expenses Restated to Reflect Current [Text]	rr_ExpensesRestatedToReflectCurrent	Other Expenses have been restated to reflect current contractual fees.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following 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 either redeem or do not redeem your shares at the end of a 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 by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	Redemption
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	No Redemption
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, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Missouri personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years. Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds. The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature. The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished. The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include: Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax. Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted. Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk. High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities. Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise. Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments. Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment. Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably. Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body. Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Missouri, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state. Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer. Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.
Risk Lose Money [Text]	rr_RiskLoseMoney	The price and yield of this Fund will change daily, which means you could lose money.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Fund Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	(800) 257-8787
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx
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 Return
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 8.87% and -4.83%, respectively, for the quarters ended September 30, 2009 and December 31, 2008.
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns for the Periods Ended December 31, 2011
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here. Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.
Nuveen Missouri Municipal Bond Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.20%
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.20%
Other Expenses	rr_OtherExpensesOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.82%
1 Year	rr_ExpenseExampleYear01	500
3 Years	rr_ExpenseExampleYear03	671
5 Years	rr_ExpenseExampleYear05	856
10 Years	rr_ExpenseExampleYear10	1,391
1 Year	rr_ExpenseExampleNoRedemptionYear01	500
3 Years	rr_ExpenseExampleNoRedemptionYear03	671
5 Years	rr_ExpenseExampleNoRedemptionYear05	856
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,391
2002	rr_AnnualReturn2002	7.97%	[4]
2003	rr_AnnualReturn2003	5.23%	[4]
2004	rr_AnnualReturn2004	4.92%	[4]
2005	rr_AnnualReturn2005	4.20%	[4]
2006	rr_AnnualReturn2006	4.67%	[4]
2007	rr_AnnualReturn2007	1.73%	[4]
2008	rr_AnnualReturn2008	(9.60%)	[4]
2009	rr_AnnualReturn2009	18.69%	[4]
2010	rr_AnnualReturn2010	2.94%	[4]
2011	rr_AnnualReturn2011	11.42%	[4]
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	4.62%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	8.87%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(4.83%)
1 Year	rr_AverageAnnualReturnYear01	6.73%
5 Years	rr_AverageAnnualReturnYear05	3.70%
10 Years	rr_AverageAnnualReturnYear10	4.54%
Nuveen Missouri Municipal Bond Fund | Class B
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	5.00%	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.95%
Other Expenses	rr_OtherExpensesOverAssets	0.09%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.56%
1 Year	rr_ExpenseExampleYear01	559
3 Years	rr_ExpenseExampleYear03	793
5 Years	rr_ExpenseExampleYear05	950
10 Years	rr_ExpenseExampleYear10	1,657
1 Year	rr_ExpenseExampleNoRedemptionYear01	159
3 Years	rr_ExpenseExampleNoRedemptionYear03	493
5 Years	rr_ExpenseExampleNoRedemptionYear05	850
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,657
1 Year	rr_AverageAnnualReturnYear01	6.58%
5 Years	rr_AverageAnnualReturnYear05	3.65%
10 Years	rr_AverageAnnualReturnYear10	4.37%
Nuveen Missouri Municipal Bond Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	1.00%	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other Expenses	rr_OtherExpensesOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.37%
1 Year	rr_ExpenseExampleYear01	139
3 Years	rr_ExpenseExampleYear03	434
5 Years	rr_ExpenseExampleYear05	750
10 Years	rr_ExpenseExampleYear10	1,646
1 Year	rr_ExpenseExampleNoRedemptionYear01	139
3 Years	rr_ExpenseExampleNoRedemptionYear03	434
5 Years	rr_ExpenseExampleNoRedemptionYear05	750
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,646
1 Year	rr_AverageAnnualReturnYear01	10.82%
5 Years	rr_AverageAnnualReturnYear05	4.02%
10 Years	rr_AverageAnnualReturnYear10	4.42%
Nuveen Missouri Municipal Bond Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.62%
1 Year	rr_ExpenseExampleYear01	63
3 Years	rr_ExpenseExampleYear03	199
5 Years	rr_ExpenseExampleYear05	346
10 Years	rr_ExpenseExampleYear10	774
1 Year	rr_ExpenseExampleNoRedemptionYear01	63
3 Years	rr_ExpenseExampleNoRedemptionYear03	199
5 Years	rr_ExpenseExampleNoRedemptionYear05	346
10 Years	rr_ExpenseExampleNoRedemptionYear10	774
1 Year	rr_AverageAnnualReturnYear01	11.61%
5 Years	rr_AverageAnnualReturnYear05	4.80%
10 Years	rr_AverageAnnualReturnYear10	5.21%
Nuveen Missouri Municipal Bond Fund | (return after taxes on distributions) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	6.73%
5 Years	rr_AverageAnnualReturnYear05	3.68%
10 Years	rr_AverageAnnualReturnYear10	4.53%
Nuveen Missouri Municipal Bond Fund | (return after taxes on distributions and sale of Fund shares) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.90%
5 Years	rr_AverageAnnualReturnYear05	3.75%
10 Years	rr_AverageAnnualReturnYear10	4.51%
Nuveen Missouri Municipal Bond Fund | S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	10.62%
5 Years	rr_AverageAnnualReturnYear05	4.86%
10 Years	rr_AverageAnnualReturnYear10	5.35%
Nuveen Missouri Municipal Bond Fund | Lipper Other States Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	9.87%
5 Years	rr_AverageAnnualReturnYear05	3.91%
10 Years	rr_AverageAnnualReturnYear10	4.43%

[1] The contingent deferred sales charge ("CDSC") on Class B shares declines over a six-year period from purchase. The CDSC on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[3] Other Expenses have been restated to reflect current contractual fees.

[4] Class A year-to-date total return as of June 30, 2012 was 4.62%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	NUVEEN MULTISTATE TRUST IV
Prospectus Date	rr_ProspectusDate	Sep. 28, 2012
Nuveen Michigan Municipal Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Nuveen Michigan Municipal Bond Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Michigan state and, in some cases, Michigan local income taxes as is consistent with preservation of capital.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 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 12% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	12.00%
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	50,000
Expenses Restated to Reflect Current [Text]	rr_ExpensesRestatedToReflectCurrent	Other Expenses have been restated to reflect current contractual fees.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following 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 either redeem or do not redeem your shares at the end of a 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 by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	Redemption
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	No Redemption
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, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Michigan personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years. Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds. The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature. The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished. The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include: Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax. Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted. Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk. High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities. Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise. Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments. Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment. Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably. Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body. Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Michigan, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state. Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer. Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.
Risk Lose Money [Text]	rr_RiskLoseMoney	The price and yield of this Fund will change daily, which means you could lose money.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Fund Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	(800) 257-8787
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx
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 Return
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 6.72% and -4.08%, respectively, for the quarters ended September 30, 2009 and September 30, 2008.
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns for the Periods Ended December 31, 2011
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here. Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.
Nuveen Michigan Municipal Bond Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.20%
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.20%
Other Expenses	rr_OtherExpensesOverAssets	0.11%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.83%
1 Year	rr_ExpenseExampleYear01	501
3 Years	rr_ExpenseExampleYear03	674
5 Years	rr_ExpenseExampleYear05	861
10 Years	rr_ExpenseExampleYear10	1,402
1 Year	rr_ExpenseExampleNoRedemptionYear01	501
3 Years	rr_ExpenseExampleNoRedemptionYear03	674
5 Years	rr_ExpenseExampleNoRedemptionYear05	861
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,402
2002	rr_AnnualReturn2002	9.43%	[4]
2003	rr_AnnualReturn2003	3.98%	[4]
2004	rr_AnnualReturn2004	5.54%	[4]
2005	rr_AnnualReturn2005	3.37%	[4]
2006	rr_AnnualReturn2006	4.89%	[4]
2007	rr_AnnualReturn2007	2.45%	[4]
2008	rr_AnnualReturn2008	(5.25%)	[4]
2009	rr_AnnualReturn2009	12.67%	[4]
2010	rr_AnnualReturn2010	1.85%	[4]
2011	rr_AnnualReturn2011	10.18%	[4]
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	4.34%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	6.72%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(4.08%)
1 Year	rr_AverageAnnualReturnYear01	5.51%
5 Years	rr_AverageAnnualReturnYear05	3.28%
10 Years	rr_AverageAnnualReturnYear10	4.35%
Nuveen Michigan Municipal Bond Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	1.00%	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other Expenses	rr_OtherExpensesOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.37%
1 Year	rr_ExpenseExampleYear01	139
3 Years	rr_ExpenseExampleYear03	434
5 Years	rr_ExpenseExampleYear05	750
10 Years	rr_ExpenseExampleYear10	1,646
1 Year	rr_ExpenseExampleNoRedemptionYear01	139
3 Years	rr_ExpenseExampleNoRedemptionYear03	434
5 Years	rr_ExpenseExampleNoRedemptionYear05	750
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,646
1 Year	rr_AverageAnnualReturnYear01	9.59%
5 Years	rr_AverageAnnualReturnYear05	3.61%
10 Years	rr_AverageAnnualReturnYear10	4.22%
Nuveen Michigan Municipal Bond Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.62%
1 Year	rr_ExpenseExampleYear01	63
3 Years	rr_ExpenseExampleYear03	199
5 Years	rr_ExpenseExampleYear05	346
10 Years	rr_ExpenseExampleYear10	774
1 Year	rr_ExpenseExampleNoRedemptionYear01	63
3 Years	rr_ExpenseExampleNoRedemptionYear03	199
5 Years	rr_ExpenseExampleNoRedemptionYear05	346
10 Years	rr_ExpenseExampleNoRedemptionYear10	774
1 Year	rr_AverageAnnualReturnYear01	10.38%
5 Years	rr_AverageAnnualReturnYear05	4.38%
10 Years	rr_AverageAnnualReturnYear10	5.00%
Nuveen Michigan Municipal Bond Fund | (return after taxes on distributions) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.51%
5 Years	rr_AverageAnnualReturnYear05	3.27%
10 Years	rr_AverageAnnualReturnYear10	4.29%
Nuveen Michigan Municipal Bond Fund | (return after taxes on distributions and sale of Fund shares) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.00%
5 Years	rr_AverageAnnualReturnYear05	3.38%
10 Years	rr_AverageAnnualReturnYear10	4.33%
Nuveen Michigan Municipal Bond Fund | S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	10.62%
5 Years	rr_AverageAnnualReturnYear05	4.86%
10 Years	rr_AverageAnnualReturnYear10	5.35%
Nuveen Michigan Municipal Bond Fund | Lipper Michigan Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	9.93%
5 Years	rr_AverageAnnualReturnYear05	2.86%
10 Years	rr_AverageAnnualReturnYear10	4.39%

[1] The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[3] Other Expenses have been restated to reflect current contractual fees.

[4] Class A year-to-date total return as of June 30, 2012 was 4.34%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	NUVEEN MULTISTATE TRUST IV
Prospectus Date	rr_ProspectusDate	Sep. 28, 2012
Document Creation Date	dei_DocumentCreationDate	Sep. 28, 2012

XML

Nuveen Wisconsin Municipal Bond Fund

Nuveen Wisconsin Municipal Bond Fund

Investment Objective

The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Wisconsin state and, in some cases, Wisconsin local income taxes as is consistent with preservation of capital.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 of the Fund’s statement of additional information.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees Nuveen Wisconsin Municipal Bond Fund (USD $)		Class A	Class C	Class I
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)		4.20%	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	[1]	none	1.00%	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends		none	none	none
Exchange Fee		none	none	none
Annual Low Balance Account Fee (for accounts under $1,000)	[2]	15	15	15

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

Annual Fund Operating Expenses Nuveen Wisconsin Municipal Bond Fund		Class A	Class C	Class I
Management Fees		0.53%	0.53%	0.53%
Distribution and/or Service (12b-1) Fees		0.20%	0.75%	none
Other Expenses	[1]	0.13%	0.12%	0.12%
Total Annual Fund Operating Expenses		0.86%	1.40%	0.65%

Example

The following 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 either redeem or do not redeem your shares at the end of a 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:

Redemption

Expense Example Nuveen Wisconsin Municipal Bond Fund (USD $)	Class A	Class C	Class I
1 Year	504	143	66
3 Years	683	443	208
5 Years	877	766	362
10 Years	1,436	1,680	810

No Redemption

Expense Example, No Redemption Nuveen Wisconsin Municipal Bond Fund (USD $)	Class A	Class C	Class I
1 Year	504	143	66
3 Years	683	443	208
5 Years	877	766	362
10 Years	1,436	1,680	810

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 19% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Wisconsin personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years.

Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds.

The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature.

The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished.

The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.

Principal Risks

The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include:

Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted.

Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk.

High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities.

Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise.

Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments.

Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment.

Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably.

Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body.

Non-Diversification Risk—As a non-diversified fund, the Fund may invest a larger portion of its assets in the securities of a limited number of issuers and may be more sensitive to any single economic, political or regulatory occurrence than a diversified fund.

Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Wisconsin, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state.

Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer.

Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.

The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.

Class A Annual Total Return

During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 7.86% and
-5.23%, respectively, for the quarters ended September 30, 2009 and September 30, 2008.

The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here.

Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.

Average Annual Total Returns
for the Periods Ended
December 31, 2011

Average Annual Total Returns Nuveen Wisconsin Municipal Bond Fund	1 Year	5 Years	10 Years
Class A	6.94%	3.81%	4.45%
Class A (return after taxes on distributions)	6.94%	3.81%	4.44%
Class A (return after taxes on distributions and sale of Fund shares)	5.84%	3.78%	4.37%
Class C	11.04%	4.12%	4.33%
Class I	11.82%	4.94%	5.11%
S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	10.62%	4.86%	5.35%
Lipper Other States Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)	9.87%	3.91%	4.43%

[1] The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[1] Other Expenses have been restated to reflect current contractual fees.

[1] Class A year-to-date total return as of June 30, 2012 was 4.39%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	NUVEEN MULTISTATE TRUST IV
Prospectus Date	rr_ProspectusDate	Sep. 28, 2012
Nuveen Kansas Municipal Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Nuveen Kansas Municipal Bond Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Kansas state and, in some cases, Kansas local income taxes as is consistent with preservation of capital.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 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 36% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	36.00%
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	50,000
Expenses Restated to Reflect Current [Text]	rr_ExpensesRestatedToReflectCurrent	Other Expenses have been restated to reflect current contractual fees.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following 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 either redeem or do not redeem your shares at the end of a 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 by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	Redemption
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	No Redemption
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, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Kansas personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years. Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds. The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature. The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished. The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include: Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax. Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted. Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk. High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities. Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise. Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments. Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment. Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably. Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body. Non-Diversification Risk—As a non-diversified fund, the Fund may invest a larger portion of its assets in the securities of a limited number of issuers and may be more sensitive to any single economic, political or regulatory occurrence than a diversified fund. Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Kansas, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state. Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer. Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.
Risk Lose Money [Text]	rr_RiskLoseMoney	The price and yield of this Fund will change daily, which means you could lose money.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Non-Diversification Risk—As a non-diversified fund, the Fund may invest a larger portion of its assets in the securities of a limited number of issuers and may be more sensitive to any single economic, political or regulatory occurrence than a diversified fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Fund Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	(800) 257-8787
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx
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 Return
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 6.77% and -4.35%, respectively, for the quarters ended March 31, 2009 and December 31, 2010.
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns for the Periods Ended December 31, 2011
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here. Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.
Nuveen Kansas Municipal Bond Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.20%
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.20%
Interest and Related Expenses from Inverse Floaters	rr_Component1OtherExpensesOverAssets	0.03%
Other Expenses	rr_Component2OtherExpensesOverAssets	0.10%	[3]
Total Other Expenses:	rr_OtherExpensesOverAssets	0.13%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.85%
1 Year	rr_ExpenseExampleYear01	503
3 Years	rr_ExpenseExampleYear03	680
5 Years	rr_ExpenseExampleYear05	872
10 Years	rr_ExpenseExampleYear10	1,425
1 Year	rr_ExpenseExampleNoRedemptionYear01	503
3 Years	rr_ExpenseExampleNoRedemptionYear03	680
5 Years	rr_ExpenseExampleNoRedemptionYear05	872
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,425
2002	rr_AnnualReturn2002	8.77%	[4]
2003	rr_AnnualReturn2003	4.39%	[4]
2004	rr_AnnualReturn2004	5.29%	[4]
2005	rr_AnnualReturn2005	3.33%	[4]
2006	rr_AnnualReturn2006	4.03%	[4]
2007	rr_AnnualReturn2007	2.63%	[4]
2008	rr_AnnualReturn2008	(6.51%)	[4]
2009	rr_AnnualReturn2009	16.70%	[4]
2010	rr_AnnualReturn2010	1.93%	[4]
2011	rr_AnnualReturn2011	11.26%	[4]
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	5.20%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	6.77%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2010
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(4.35%)
1 Year	rr_AverageAnnualReturnYear01	6.63%
5 Years	rr_AverageAnnualReturnYear05	4.00%
10 Years	rr_AverageAnnualReturnYear10	4.57%
Nuveen Kansas Municipal Bond Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	1.00%	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.75%
Interest and Related Expenses from Inverse Floaters	rr_Component1OtherExpensesOverAssets	0.03%
Other Expenses	rr_Component2OtherExpensesOverAssets	0.09%	[3]
Total Other Expenses:	rr_OtherExpensesOverAssets	0.12%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.39%
1 Year	rr_ExpenseExampleYear01	142
3 Years	rr_ExpenseExampleYear03	440
5 Years	rr_ExpenseExampleYear05	761
10 Years	rr_ExpenseExampleYear10	1,669
1 Year	rr_ExpenseExampleNoRedemptionYear01	142
3 Years	rr_ExpenseExampleNoRedemptionYear03	440
5 Years	rr_ExpenseExampleNoRedemptionYear05	761
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,669
1 Year	rr_AverageAnnualReturnYear01	10.70%
5 Years	rr_AverageAnnualReturnYear05	4.31%
10 Years	rr_AverageAnnualReturnYear10	4.44%
Nuveen Kansas Municipal Bond Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.52%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Interest and Related Expenses from Inverse Floaters	rr_Component1OtherExpensesOverAssets	0.03%
Other Expenses	rr_Component2OtherExpensesOverAssets	0.09%	[3]
Total Other Expenses:	rr_OtherExpensesOverAssets	0.12%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.64%
1 Year	rr_ExpenseExampleYear01	65
3 Years	rr_ExpenseExampleYear03	205
5 Years	rr_ExpenseExampleYear05	357
10 Years	rr_ExpenseExampleYear10	798
1 Year	rr_ExpenseExampleNoRedemptionYear01	65
3 Years	rr_ExpenseExampleNoRedemptionYear03	205
5 Years	rr_ExpenseExampleNoRedemptionYear05	357
10 Years	rr_ExpenseExampleNoRedemptionYear10	798
1 Year	rr_AverageAnnualReturnYear01	11.57%
5 Years	rr_AverageAnnualReturnYear05	5.10%
10 Years	rr_AverageAnnualReturnYear10	5.23%
Nuveen Kansas Municipal Bond Fund | (return after taxes on distributions) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	6.63%
5 Years	rr_AverageAnnualReturnYear05	3.99%
10 Years	rr_AverageAnnualReturnYear10	4.57%
Nuveen Kansas Municipal Bond Fund | (return after taxes on distributions and sale of Fund shares) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.75%
5 Years	rr_AverageAnnualReturnYear05	3.99%
10 Years	rr_AverageAnnualReturnYear10	4.52%
Nuveen Kansas Municipal Bond Fund | S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	10.62%
5 Years	rr_AverageAnnualReturnYear05	4.86%
10 Years	rr_AverageAnnualReturnYear10	5.35%
Nuveen Kansas Municipal Bond Fund | Lipper Other States Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	9.87%
5 Years	rr_AverageAnnualReturnYear05	3.91%
10 Years	rr_AverageAnnualReturnYear10	4.43%

[1] The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[3] Other Expenses have been restated to reflect current contractual fees.

[4] Class A year-to-date total return as of June 30, 2012 was 5.20%.

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Nuveen Kansas Municipal Bond Fund

Nuveen Kansas Municipal Bond Fund

Investment Objective

The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Kansas state and, in some cases, Kansas local income taxes as is consistent with preservation of capital.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 of the Fund’s statement of additional information.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees Nuveen Kansas Municipal Bond Fund (USD $)		Class A	Class C	Class I
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)		4.20%	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	[1]	none	1.00%	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends		none	none	none
Exchange Fee		none	none	none
Annual Low Balance Account Fee (for accounts under $1,000)	[2]	15	15	15

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

Annual Fund Operating Expenses Nuveen Kansas Municipal Bond Fund		Class A	Class C	Class I
Management Fees		0.52%	0.52%	0.52%
Distribution and/or Service (12b-1) Fees		0.20%	0.75%	none
Total Other Expenses:		0.13%	0.12%	0.12%
Interest and Related Expenses from Inverse Floaters		0.03%	0.03%	0.03%
Other Expenses	[1]	0.10%	0.09%	0.09%
Total Annual Fund Operating Expenses		0.85%	1.39%	0.64%

Example

The following 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 either redeem or do not redeem your shares at the end of a 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:

Redemption

Expense Example Nuveen Kansas Municipal Bond Fund (USD $)	Class A	Class C	Class I
1 Year	503	142	65
3 Years	680	440	205
5 Years	872	761	357
10 Years	1,425	1,669	798

No Redemption

Expense Example, No Redemption Nuveen Kansas Municipal Bond Fund (USD $)	Class A	Class C	Class I
1 Year	503	142	65
3 Years	680	440	205
5 Years	872	761	357
10 Years	1,425	1,669	798

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 36% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Kansas personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years.

Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds.

The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature.

The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished.

The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.

Principal Risks

The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include:

Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted.

Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk.

High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities.

Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise.

Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments.

Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment.

Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably.

Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body.

Non-Diversification Risk—As a non-diversified fund, the Fund may invest a larger portion of its assets in the securities of a limited number of issuers and may be more sensitive to any single economic, political or regulatory occurrence than a diversified fund.

Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Kansas, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state.

Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer.

Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.

The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.

Class A Annual Total Return

During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 6.77% and -4.35%, respectively, for the quarters ended March 31, 2009 and December 31, 2010.

The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here.

Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.

Average Annual Total Returns
for the Periods Ended
December 31, 2011

Average Annual Total Returns Nuveen Kansas Municipal Bond Fund	1 Year	5 Years	10 Years
Class A	6.63%	4.00%	4.57%
Class A (return after taxes on distributions)	6.63%	3.99%	4.57%
Class A (return after taxes on distributions and sale of Fund shares)	5.75%	3.99%	4.52%
Class C	10.70%	4.31%	4.44%
Class I	11.57%	5.10%	5.23%
S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	10.62%	4.86%	5.35%
Lipper Other States Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)	9.87%	3.91%	4.43%

[1] The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[1] Other Expenses have been restated to reflect current contractual fees.

[1] Class A year-to-date total return as of June 30, 2012 was 5.20%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	NUVEEN MULTISTATE TRUST IV
Prospectus Date	rr_ProspectusDate	Sep. 28, 2012
Nuveen Kentucky Municipal Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Nuveen Kentucky Municipal Bond Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Kentucky state and, in some cases, Kentucky local income taxes as is consistent with preservation of capital.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 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 16% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	16.00%
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	The contingent deferred sales charge (“CDSC”) on Class B shares declines over a six-year period from purchase. The CDSC on Class C shares applies only to redemptions within 12 months of purchase.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	50,000
Expenses Restated to Reflect Current [Text]	rr_ExpensesRestatedToReflectCurrent	Other Expenses have been restated to reflect current contractual fees.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following 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 either redeem or do not redeem your shares at the end of a 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 by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	Redemption
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	No Redemption
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, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Kentucky personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years. Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds. The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature. The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished. The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include: Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax. Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted. Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk. High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities. Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise. Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments. Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment. Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably. Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body. Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Kentucky, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state. Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer. Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.
Risk Lose Money [Text]	rr_RiskLoseMoney	The price and yield of this Fund will change daily, which means you could lose money.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Fund Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	(800) 257-8787
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx
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 Return
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 6.84% and -3.82%, respectively, for the quarters ended September 30, 2009 and December 31, 2010.
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns for the Periods Ended December 31, 2011
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here. Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.
Nuveen Kentucky Municipal Bond Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.20%
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.20%
Other Expenses	rr_OtherExpensesOverAssets	0.08%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.79%
1 Year	rr_ExpenseExampleYear01	497
3 Years	rr_ExpenseExampleYear03	662
5 Years	rr_ExpenseExampleYear05	840
10 Years	rr_ExpenseExampleYear10	1,357
1 Year	rr_ExpenseExampleNoRedemptionYear01	497
3 Years	rr_ExpenseExampleNoRedemptionYear03	662
5 Years	rr_ExpenseExampleNoRedemptionYear05	840
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,357
2002	rr_AnnualReturn2002	8.26%	[4]
2003	rr_AnnualReturn2003	5.91%	[4]
2004	rr_AnnualReturn2004	4.68%	[4]
2005	rr_AnnualReturn2005	3.68%	[4]
2006	rr_AnnualReturn2006	4.41%	[4]
2007	rr_AnnualReturn2007	2.62%	[4]
2008	rr_AnnualReturn2008	(6.12%)	[4]
2009	rr_AnnualReturn2009	14.12%	[4]
2010	rr_AnnualReturn2010	2.66%	[4]
2011	rr_AnnualReturn2011	9.86%	[4]
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	4.30%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	6.84%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2010
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(3.82%)
1 Year	rr_AverageAnnualReturnYear01	5.27%
5 Years	rr_AverageAnnualReturnYear05	3.50%
10 Years	rr_AverageAnnualReturnYear10	4.44%
Nuveen Kentucky Municipal Bond Fund | Class B
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	5.00%	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.95%
Other Expenses	rr_OtherExpensesOverAssets	0.08%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.54%
1 Year	rr_ExpenseExampleYear01	557
3 Years	rr_ExpenseExampleYear03	786
5 Years	rr_ExpenseExampleYear05	939
10 Years	rr_ExpenseExampleYear10	1,632
1 Year	rr_ExpenseExampleNoRedemptionYear01	157
3 Years	rr_ExpenseExampleNoRedemptionYear03	486
5 Years	rr_ExpenseExampleNoRedemptionYear05	839
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,632
1 Year	rr_AverageAnnualReturnYear01	4.97%
5 Years	rr_AverageAnnualReturnYear05	3.45%
10 Years	rr_AverageAnnualReturnYear10	4.26%
Nuveen Kentucky Municipal Bond Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	1.00%	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other Expenses	rr_OtherExpensesOverAssets	0.08%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.34%
1 Year	rr_ExpenseExampleYear01	136
3 Years	rr_ExpenseExampleYear03	425
5 Years	rr_ExpenseExampleYear05	734
10 Years	rr_ExpenseExampleYear10	1,613
1 Year	rr_ExpenseExampleNoRedemptionYear01	136
3 Years	rr_ExpenseExampleNoRedemptionYear03	425
5 Years	rr_ExpenseExampleNoRedemptionYear05	734
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,613
1 Year	rr_AverageAnnualReturnYear01	9.20%
5 Years	rr_AverageAnnualReturnYear05	3.83%
10 Years	rr_AverageAnnualReturnYear10	4.31%
Nuveen Kentucky Municipal Bond Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.08%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.59%
1 Year	rr_ExpenseExampleYear01	60
3 Years	rr_ExpenseExampleYear03	189
5 Years	rr_ExpenseExampleYear05	329
10 Years	rr_ExpenseExampleYear10	738
1 Year	rr_ExpenseExampleNoRedemptionYear01	60
3 Years	rr_ExpenseExampleNoRedemptionYear03	189
5 Years	rr_ExpenseExampleNoRedemptionYear05	329
10 Years	rr_ExpenseExampleNoRedemptionYear10	738
1 Year	rr_AverageAnnualReturnYear01	10.11%
5 Years	rr_AverageAnnualReturnYear05	4.61%
10 Years	rr_AverageAnnualReturnYear10	5.09%
Nuveen Kentucky Municipal Bond Fund | (return after taxes on distributions) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.27%
5 Years	rr_AverageAnnualReturnYear05	3.46%
10 Years	rr_AverageAnnualReturnYear10	4.40%
Nuveen Kentucky Municipal Bond Fund | (return after taxes on distributions and sale of Fund shares) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	4.90%
5 Years	rr_AverageAnnualReturnYear05	3.55%
10 Years	rr_AverageAnnualReturnYear10	4.41%
Nuveen Kentucky Municipal Bond Fund | S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	10.62%
5 Years	rr_AverageAnnualReturnYear05	4.86%
10 Years	rr_AverageAnnualReturnYear10	5.35%
Nuveen Kentucky Municipal Bond Fund | Lipper Other States Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	9.87%
5 Years	rr_AverageAnnualReturnYear05	3.91%
10 Years	rr_AverageAnnualReturnYear10	4.43%

[1] The contingent deferred sales charge ("CDSC") on Class B shares declines over a six-year period from purchase. The CDSC on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[3] Other Expenses have been restated to reflect current contractual fees.

[4] Class A year-to-date total return as of June 30, 2012 was 4.30%.

XML

Document and Entity Information	12 Months Ended
	Sep. 28, 2012
Risk/Return:
Document Type	485BPOS
Document Period End Date	May 31, 2012
Registrant Name	NUVEEN MULTISTATE TRUST IV
Central Index Key	0001018973
Amendment Flag	false
Document Creation Date	Sep. 28, 2012
Document Effective Date	Sep. 28, 2012
Prospectus Date	Sep. 28, 2012

XML

Nuveen Michigan Municipal Bond Fund

Nuveen Michigan Municipal Bond Fund

Investment Objective

The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Michigan state and, in some cases, Michigan local income taxes as is consistent with preservation of capital.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 of the Fund’s statement of additional information.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees Nuveen Michigan Municipal Bond Fund (USD $)		Class A	Class C	Class I
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)		4.20%	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	[1]	none	1.00%	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends		none	none	none
Exchange Fee		none	none	none
Annual Low Balance Account Fee (for accounts under $1,000)	[2]	15	15	15

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

Annual Fund Operating Expenses Nuveen Michigan Municipal Bond Fund		Class A	Class C	Class I
Management Fees		0.52%	0.52%	0.52%
Distribution and/or Service (12b-1) Fees		0.20%	0.75%	none
Other Expenses	[1]	0.11%	0.10%	0.10%
Total Annual Fund Operating Expenses		0.83%	1.37%	0.62%

Example

The following 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 either redeem or do not redeem your shares at the end of a 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:

Redemption

Expense Example Nuveen Michigan Municipal Bond Fund (USD $)	Class A	Class C	Class I
1 Year	501	139	63
3 Years	674	434	199
5 Years	861	750	346
10 Years	1,402	1,646	774

No Redemption

Expense Example, No Redemption Nuveen Michigan Municipal Bond Fund (USD $)	Class A	Class C	Class I
1 Year	501	139	63
3 Years	674	434	199
5 Years	861	750	346
10 Years	1,402	1,646	774

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 12% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Michigan personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years.

Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds.

The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature.

The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished.

The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.

Principal Risks

The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include:

Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted.

Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk.

High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities.

Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise.

Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments.

Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment.

Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably.

Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body.

Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Michigan, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state.

Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer.

Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.

The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.

Class A Annual Total Return

During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 6.72% and -4.08%, respectively, for the quarters ended September 30, 2009 and September 30, 2008.

The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here.

Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.

Average Annual Total Returns
for the Periods Ended
December 31, 2011

Average Annual Total Returns Nuveen Michigan Municipal Bond Fund	1 Year	5 Years	10 Years
Class A	5.51%	3.28%	4.35%
Class A (return after taxes on distributions)	5.51%	3.27%	4.29%
Class A (return after taxes on distributions and sale of Fund shares)	5.00%	3.38%	4.33%
Class C	9.59%	3.61%	4.22%
Class I	10.38%	4.38%	5.00%
S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	10.62%	4.86%	5.35%
Lipper Michigan Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)	9.93%	2.86%	4.39%

[1] The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[1] Other Expenses have been restated to reflect current contractual fees.

[1] Class A year-to-date total return as of June 30, 2012 was 4.34%.

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Nuveen Ohio Municipal Bond Fund

Nuveen Ohio Municipal Bond Fund

Investment Objective

The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Ohio state and, in some cases, Ohio local income taxes as is consistent with preservation of capital.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 of the Fund’s statement of additional information.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees Nuveen Ohio Municipal Bond Fund (USD $)		Class A	Class B	Class C	Class I
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)		4.20%	none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	[1]	none	5.00%	1.00%	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends		none	none	none	none
Exchange Fee		none	none	none	none
Annual Low Balance Account Fee (for accounts under $1,000)	[2]	15	15	15	15

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

Annual Fund Operating Expenses Nuveen Ohio Municipal Bond Fund		Class A	Class B	Class C	Class I
Management Fees		0.51%	0.51%	0.51%	0.51%
Distribution and/or Service (12b-1) Fees		0.20%	0.95%	0.75%	none
Other Expenses	[1]	0.10%	0.10%	0.10%	0.10%
Total Annual Fund Operating Expenses		0.81%	1.56%	1.36%	0.61%

Example

The following 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 either redeem or do not redeem your shares at the end of a 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:

Redemption

Expense Example Nuveen Ohio Municipal Bond Fund (USD $)	Class A	Class B	Class C	Class I
1 Year	499	559	138	62
3 Years	668	793	431	195
5 Years	851	950	745	340
10 Years	1,380	1,655	1,635	762

No Redemption

Expense Example, No Redemption Nuveen Ohio Municipal Bond Fund (USD $)	Class A	Class B	Class C	Class I
1 Year	499	159	138	62
3 Years	668	493	431	195
5 Years	851	850	745	340
10 Years	1,380	1,655	1,635	762

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 13% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Ohio personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years.

Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds.

The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature.

The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished.

The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.

Principal Risks

The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include:

Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted.

Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk.

High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities.

Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise.

Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments.

Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment.

Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably.

Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body.

Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Ohio, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state.

Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer.

Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.

The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.

Class A Annual Total Return

During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 8.00% and
-4.22%, respectively, for the quarters ended September 30, 2009 and December 31, 2010.

The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here.

Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.

Average Annual Total Returns
for the Periods Ended
December 31, 2011

Average Annual Total Returns Nuveen Ohio Municipal Bond Fund	1 Year	5 Years	10 Years
Class A	5.66%	3.60%	4.49%
Class A (return after taxes on distributions)	5.65%	3.56%	4.45%
Class A (return after taxes on distributions and sale of Fund shares)	5.16%	3.65%	4.46%
Class B	5.39%	3.54%	4.31%
Class C	9.71%	3.93%	4.36%
Class I	10.54%	4.72%	5.15%
S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	10.62%	4.86%	5.35%
Lipper Ohio Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)	9.52%	3.52%	4.29%

[1] The contingent deferred sales charge ("CDSC") on Class B shares declines over a six-year period from purchase. The CDSC on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[1] Other Expenses have been restated to reflect current contractual fees.

[1] Class A year-to-date total return as of June 30, 2012 was 4.53%.

XML

Nuveen Missouri Municipal Bond Fund

Nuveen Missouri Municipal Bond Fund

Investment Objective

The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Missouri state and, in some cases, Missouri local income taxes as is consistent with preservation of capital.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 of the Fund’s statement of additional information.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees Nuveen Missouri Municipal Bond Fund (USD $)		Class A	Class B	Class C	Class I
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)		4.20%	none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	[1]	none	5.00%	1.00%	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends		none	none	none	none
Exchange Fee		none	none	none	none
Annual Low Balance Account Fee (for accounts under $1,000)	[2]	15	15	15	15

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

Annual Fund Operating Expenses Nuveen Missouri Municipal Bond Fund		Class A	Class B	Class C	Class I
Management Fees		0.52%	0.52%	0.52%	0.52%
Distribution and/or Service (12b-1) Fees		0.20%	0.95%	0.75%	none
Other Expenses	[1]	0.10%	0.09%	0.10%	0.10%
Total Annual Fund Operating Expenses		0.82%	1.56%	1.37%	0.62%

Example

The following 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 either redeem or do not redeem your shares at the end of a 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:

Redemption

Expense Example Nuveen Missouri Municipal Bond Fund (USD $)	Class A	Class B	Class C	Class I
1 Year	500	559	139	63
3 Years	671	793	434	199
5 Years	856	950	750	346
10 Years	1,391	1,657	1,646	774

No Redemption

Expense Example, No Redemption Nuveen Missouri Municipal Bond Fund (USD $)	Class A	Class B	Class C	Class I
1 Year	500	159	139	63
3 Years	671	493	434	199
5 Years	856	850	750	346
10 Years	1,391	1,657	1,646	774

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 8% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Missouri personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years.

Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds.

The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature.

The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished.

The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.

Principal Risks

The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include:

Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted.

Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk.

High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities.

Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise.

Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments.

Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment.

Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably.

Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body.

Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Missouri, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state.

Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer.

Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.

The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.

Class A Annual Total Return

During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 8.87% and
-4.83%, respectively, for the quarters ended September 30, 2009 and December 31, 2008.

The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here.

Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.

Average Annual Total Returns
for the Periods Ended
December 31, 2011

Average Annual Total Returns Nuveen Missouri Municipal Bond Fund	1 Year	5 Years	10 Years
Class A	6.73%	3.70%	4.54%
Class A (return after taxes on distributions)	6.73%	3.68%	4.53%
Class A (return after taxes on distributions and sale of Fund shares)	5.90%	3.75%	4.51%
Class B	6.58%	3.65%	4.37%
Class C	10.82%	4.02%	4.42%
Class I	11.61%	4.80%	5.21%
S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	10.62%	4.86%	5.35%
Lipper Other States Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)	9.87%	3.91%	4.43%

[1] The contingent deferred sales charge ("CDSC") on Class B shares declines over a six-year period from purchase. The CDSC on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[1] Other Expenses have been restated to reflect current contractual fees.

[1] Class A year-to-date total return as of June 30, 2012 was 4.62%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	NUVEEN MULTISTATE TRUST IV
Prospectus Date	rr_ProspectusDate	Sep. 28, 2012
Nuveen Wisconsin Municipal Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Nuveen Wisconsin Municipal Bond Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Wisconsin state and, in some cases, Wisconsin local income taxes as is consistent with preservation of capital.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 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% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	19.00%
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	50,000
Expenses Restated to Reflect Current [Text]	rr_ExpensesRestatedToReflectCurrent	Other Expenses have been restated to reflect current contractual fees.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following 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 either redeem or do not redeem your shares at the end of a 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 by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	Redemption
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	No Redemption
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, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Wisconsin personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years. Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds. The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature. The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished. The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include: Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax. Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted. Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk. High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities. Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise. Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments. Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment. Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably. Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body. Non-Diversification Risk—As a non-diversified fund, the Fund may invest a larger portion of its assets in the securities of a limited number of issuers and may be more sensitive to any single economic, political or regulatory occurrence than a diversified fund. Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Wisconsin, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state. Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer. Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.
Risk Lose Money [Text]	rr_RiskLoseMoney	The price and yield of this Fund will change daily, which means you could lose money.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Non-Diversification Risk—As a non-diversified fund, the Fund may invest a larger portion of its assets in the securities of a limited number of issuers and may be more sensitive to any single economic, political or regulatory occurrence than a diversified fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Fund Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	(800) 257-8787
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx
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 Return
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 7.86% and -5.23%, respectively, for the quarters ended September 30, 2009 and September 30, 2008.
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns for the Periods Ended December 31, 2011
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here. Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.
Nuveen Wisconsin Municipal Bond Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.20%
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.53%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.20%
Other Expenses	rr_OtherExpensesOverAssets	0.13%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.86%
1 Year	rr_ExpenseExampleYear01	504
3 Years	rr_ExpenseExampleYear03	683
5 Years	rr_ExpenseExampleYear05	877
10 Years	rr_ExpenseExampleYear10	1,436
1 Year	rr_ExpenseExampleNoRedemptionYear01	504
3 Years	rr_ExpenseExampleNoRedemptionYear03	683
5 Years	rr_ExpenseExampleNoRedemptionYear05	877
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,436
2002	rr_AnnualReturn2002	9.04%	[4]
2003	rr_AnnualReturn2003	4.65%	[4]
2004	rr_AnnualReturn2004	4.42%	[4]
2005	rr_AnnualReturn2005	3.23%	[4]
2006	rr_AnnualReturn2006	4.29%	[4]
2007	rr_AnnualReturn2007	1.93%	[4]
2008	rr_AnnualReturn2008	(6.35%)	[4]
2009	rr_AnnualReturn2009	16.06%	[4]
2010	rr_AnnualReturn2010	1.74%	[4]
2011	rr_AnnualReturn2011	11.63%	[4]
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	4.39%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	7.86%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(5.23%)
1 Year	rr_AverageAnnualReturnYear01	6.94%
5 Years	rr_AverageAnnualReturnYear05	3.81%
10 Years	rr_AverageAnnualReturnYear10	4.45%
Nuveen Wisconsin Municipal Bond Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	1.00%	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.53%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other Expenses	rr_OtherExpensesOverAssets	0.12%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.40%
1 Year	rr_ExpenseExampleYear01	143
3 Years	rr_ExpenseExampleYear03	443
5 Years	rr_ExpenseExampleYear05	766
10 Years	rr_ExpenseExampleYear10	1,680
1 Year	rr_ExpenseExampleNoRedemptionYear01	143
3 Years	rr_ExpenseExampleNoRedemptionYear03	443
5 Years	rr_ExpenseExampleNoRedemptionYear05	766
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,680
1 Year	rr_AverageAnnualReturnYear01	11.04%
5 Years	rr_AverageAnnualReturnYear05	4.12%
10 Years	rr_AverageAnnualReturnYear10	4.33%
Nuveen Wisconsin Municipal Bond Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.53%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.12%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.65%
1 Year	rr_ExpenseExampleYear01	66
3 Years	rr_ExpenseExampleYear03	208
5 Years	rr_ExpenseExampleYear05	362
10 Years	rr_ExpenseExampleYear10	810
1 Year	rr_ExpenseExampleNoRedemptionYear01	66
3 Years	rr_ExpenseExampleNoRedemptionYear03	208
5 Years	rr_ExpenseExampleNoRedemptionYear05	362
10 Years	rr_ExpenseExampleNoRedemptionYear10	810
1 Year	rr_AverageAnnualReturnYear01	11.82%
5 Years	rr_AverageAnnualReturnYear05	4.94%
10 Years	rr_AverageAnnualReturnYear10	5.11%
Nuveen Wisconsin Municipal Bond Fund | (return after taxes on distributions) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	6.94%
5 Years	rr_AverageAnnualReturnYear05	3.81%
10 Years	rr_AverageAnnualReturnYear10	4.44%
Nuveen Wisconsin Municipal Bond Fund | (return after taxes on distributions and sale of Fund shares) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.84%
5 Years	rr_AverageAnnualReturnYear05	3.78%
10 Years	rr_AverageAnnualReturnYear10	4.37%
Nuveen Wisconsin Municipal Bond Fund | S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	10.62%
5 Years	rr_AverageAnnualReturnYear05	4.86%
10 Years	rr_AverageAnnualReturnYear10	5.35%
Nuveen Wisconsin Municipal Bond Fund | Lipper Other States Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	9.87%
5 Years	rr_AverageAnnualReturnYear05	3.91%
10 Years	rr_AverageAnnualReturnYear10	4.43%

[1] The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[3] Other Expenses have been restated to reflect current contractual fees.

[4] Class A year-to-date total return as of June 30, 2012 was 4.39%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	NUVEEN MULTISTATE TRUST IV
Prospectus Date	rr_ProspectusDate	Sep. 28, 2012
Nuveen Ohio Municipal Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Nuveen Ohio Municipal Bond Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Ohio state and, in some cases, Ohio local income taxes as is consistent with preservation of capital.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 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 13% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	13.00%
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	The contingent deferred sales charge (“CDSC”) on Class B shares declines over a six-year period from purchase. The CDSC on Class C shares applies only to redemptions within 12 months of purchase.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	50,000
Expenses Restated to Reflect Current [Text]	rr_ExpensesRestatedToReflectCurrent	Other Expenses have been restated to reflect current contractual fees.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following 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 either redeem or do not redeem your shares at the end of a 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 by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	Redemption
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	No Redemption
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, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Ohio personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years. Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds. The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature. The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished. The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include: Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax. Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted. Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk. High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities. Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise. Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments. Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment. Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably. Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body. Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Ohio, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state. Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer. Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.
Risk Lose Money [Text]	rr_RiskLoseMoney	The price and yield of this Fund will change daily, which means you could lose money.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Fund Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	(800) 257-8787
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx
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 Return
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 8.00% and -4.22%, respectively, for the quarters ended September 30, 2009 and December 31, 2010.
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns for the Periods Ended December 31, 2011
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here. Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.
Nuveen Ohio Municipal Bond Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.20%
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.20%
Other Expenses	rr_OtherExpensesOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.81%
1 Year	rr_ExpenseExampleYear01	499
3 Years	rr_ExpenseExampleYear03	668
5 Years	rr_ExpenseExampleYear05	851
10 Years	rr_ExpenseExampleYear10	1,380
1 Year	rr_ExpenseExampleNoRedemptionYear01	499
3 Years	rr_ExpenseExampleNoRedemptionYear03	668
5 Years	rr_ExpenseExampleNoRedemptionYear05	851
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,380
2002	rr_AnnualReturn2002	8.78%	[4]
2003	rr_AnnualReturn2003	5.64%	[4]
2004	rr_AnnualReturn2004	4.86%	[4]
2005	rr_AnnualReturn2005	3.40%	[4]
2006	rr_AnnualReturn2006	4.23%	[4]
2007	rr_AnnualReturn2007	2.30%	[4]
2008	rr_AnnualReturn2008	(4.26%)	[4]
2009	rr_AnnualReturn2009	14.06%	[4]
2010	rr_AnnualReturn2010	1.14%	[4]
2011	rr_AnnualReturn2011	10.27%	[4]
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	4.53%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	8.00%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2010
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(4.22%)
1 Year	rr_AverageAnnualReturnYear01	5.66%
5 Years	rr_AverageAnnualReturnYear05	3.60%
10 Years	rr_AverageAnnualReturnYear10	4.49%
Nuveen Ohio Municipal Bond Fund | Class B
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	5.00%	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.95%
Other Expenses	rr_OtherExpensesOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.56%
1 Year	rr_ExpenseExampleYear01	559
3 Years	rr_ExpenseExampleYear03	793
5 Years	rr_ExpenseExampleYear05	950
10 Years	rr_ExpenseExampleYear10	1,655
1 Year	rr_ExpenseExampleNoRedemptionYear01	159
3 Years	rr_ExpenseExampleNoRedemptionYear03	493
5 Years	rr_ExpenseExampleNoRedemptionYear05	850
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,655
1 Year	rr_AverageAnnualReturnYear01	5.39%
5 Years	rr_AverageAnnualReturnYear05	3.54%
10 Years	rr_AverageAnnualReturnYear10	4.31%
Nuveen Ohio Municipal Bond Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	1.00%	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other Expenses	rr_OtherExpensesOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.36%
1 Year	rr_ExpenseExampleYear01	138
3 Years	rr_ExpenseExampleYear03	431
5 Years	rr_ExpenseExampleYear05	745
10 Years	rr_ExpenseExampleYear10	1,635
1 Year	rr_ExpenseExampleNoRedemptionYear01	138
3 Years	rr_ExpenseExampleNoRedemptionYear03	431
5 Years	rr_ExpenseExampleNoRedemptionYear05	745
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,635
1 Year	rr_AverageAnnualReturnYear01	9.71%
5 Years	rr_AverageAnnualReturnYear05	3.93%
10 Years	rr_AverageAnnualReturnYear10	4.36%
Nuveen Ohio Municipal Bond Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Annual Low Balance Account Fee (for accounts under $1,000)	rr_MaximumAccountFee	15	[2]
Management Fees	rr_ManagementFeesOverAssets	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.61%
1 Year	rr_ExpenseExampleYear01	62
3 Years	rr_ExpenseExampleYear03	195
5 Years	rr_ExpenseExampleYear05	340
10 Years	rr_ExpenseExampleYear10	762
1 Year	rr_ExpenseExampleNoRedemptionYear01	62
3 Years	rr_ExpenseExampleNoRedemptionYear03	195
5 Years	rr_ExpenseExampleNoRedemptionYear05	340
10 Years	rr_ExpenseExampleNoRedemptionYear10	762
1 Year	rr_AverageAnnualReturnYear01	10.54%
5 Years	rr_AverageAnnualReturnYear05	4.72%
10 Years	rr_AverageAnnualReturnYear10	5.15%
Nuveen Ohio Municipal Bond Fund | (return after taxes on distributions) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.65%
5 Years	rr_AverageAnnualReturnYear05	3.56%
10 Years	rr_AverageAnnualReturnYear10	4.45%
Nuveen Ohio Municipal Bond Fund | (return after taxes on distributions and sale of Fund shares) | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	5.16%
5 Years	rr_AverageAnnualReturnYear05	3.65%
10 Years	rr_AverageAnnualReturnYear10	4.46%
Nuveen Ohio Municipal Bond Fund | S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	10.62%
5 Years	rr_AverageAnnualReturnYear05	4.86%
10 Years	rr_AverageAnnualReturnYear10	5.35%
Nuveen Ohio Municipal Bond Fund | Lipper Ohio Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	9.52%
5 Years	rr_AverageAnnualReturnYear05	3.52%
10 Years	rr_AverageAnnualReturnYear10	4.29%

[1] The contingent deferred sales charge ("CDSC") on Class B shares declines over a six-year period from purchase. The CDSC on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[3] Other Expenses have been restated to reflect current contractual fees.

[4] Class A year-to-date total return as of June 30, 2012 was 4.53%.

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Nuveen Kentucky Municipal Bond Fund

Nuveen Kentucky Municipal Bond Fund

Investment Objective

The investment objective of the Fund is to provide you with as high a level of current interest income exempt from regular federal, Kentucky state and, in some cases, Kentucky local income taxes as is consistent with preservation of capital.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 41 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 43 of the prospectus and “Purchase and Redemption of Fund Shares” on page S-63 of the Fund’s statement of additional information.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees Nuveen Kentucky Municipal Bond Fund (USD $)		Class A	Class B	Class C	Class I
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)		4.20%	none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	[1]	none	5.00%	1.00%	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends		none	none	none	none
Exchange Fee		none	none	none	none
Annual Low Balance Account Fee (for accounts under $1,000)	[2]	15	15	15	15

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

Annual Fund Operating Expenses Nuveen Kentucky Municipal Bond Fund		Class A	Class B	Class C	Class I
Management Fees		0.51%	0.51%	0.51%	0.51%
Distribution and/or Service (12b-1) Fees		0.20%	0.95%	0.75%	none
Other Expenses	[1]	0.08%	0.08%	0.08%	0.08%
Total Annual Fund Operating Expenses		0.79%	1.54%	1.34%	0.59%

Example

The following 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 either redeem or do not redeem your shares at the end of a 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:

Redemption

Expense Example Nuveen Kentucky Municipal Bond Fund (USD $)	Class A	Class B	Class C	Class I
1 Year	497	557	136	60
3 Years	662	786	425	189
5 Years	840	939	734	329
10 Years	1,357	1,632	1,613	738

No Redemption

Expense Example, No Redemption Nuveen Kentucky Municipal Bond Fund (USD $)	Class A	Class B	Class C	Class I
1 Year	497	157	136	60
3 Years	662	486	425	189
5 Years	840	839	734	329
10 Years	1,357	1,632	1,613	738

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 16% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest that is exempt from regular federal and Kentucky personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity in excess of 10 years.

Under normal market conditions, the Fund invests at least 80% of its net assets in investment grade municipal bonds rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Fund’s sub-adviser to be of comparable quality. The Fund may invest up to 20% of its net assets in below investment grade municipal bonds, commonly referred to as “high yield” or “junk” bonds.

The Fund may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Fund may invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature.

The Fund may invest up to 15% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Fund’s investments in inverse floaters are designed to increase the Fund’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished.

The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued long-term municipal bonds that offer above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.

Principal Risks

The price and yield of this Fund will change daily, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include:

Alternative Minimum Tax Risk—The Fund has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted.

Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments. In addition, parties to other financial contracts with the Fund could default on their obligations. Also, the Fund’s investments in inverse floaters will increase the Fund’s credit risk.

High Yield Securities Risk—High yield securities are high risk investments that may cause income and principal losses for the Fund. They generally have greater credit risk, are less liquid, and have more volatile prices than investment grade securities.

Income Risk—The Fund’s income could decline during periods of falling interest rates. Also, if the Fund invests in inverse floaters, the Fund’s income may decrease if short-term interest rates rise.

Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities. Interest rate risk may be increased by the Fund’s investment in inverse floaters because of the leveraged nature of these investments.

Inverse Floaters Risk—The use of inverse floaters by the Fund creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Fund could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Fund on its inverse floaters will be reduced or even eliminated as short-term municipal interest rates rise and will increase when short-term municipal interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment.

Market Risk—The market values of the Fund’s investments may decline, at times sharply and unpredictably.

Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body.

Political and Economic Risks—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers. Because the Fund primarily purchases municipal bonds from Kentucky, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state.

Tax Risk—Income from municipal bonds held by the Fund could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer.

Zero Coupon Bonds Risk—Zero coupon bonds do not pay interest on a current basis and may be highly volatile as interest rates rise or fall. In addition, while such bonds generate income for purposes of generally accepted accounting standards, they do not generate cash flow and thus could cause the Fund to be forced to liquidate securities at an inopportune time in order to distribute cash, as required by tax laws.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/MutualFunds/PricingPerformance/Performance.aspx or by calling (800) 257-8787.

The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The performance of the other share classes will differ due to their different expense structures. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.

Class A Annual Total Return

During the ten-year period ended December 31, 2011, the Fund’s highest and lowest quarterly returns were 6.84% and -3.82%, respectively, for the quarters ended September 30, 2009 and December 31, 2010.

The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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. After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here.

Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers were not in place, returns would be reduced.

Average Annual Total Returns
for the Periods Ended
December 31, 2011

Average Annual Total Returns Nuveen Kentucky Municipal Bond Fund	1 Year	5 Years	10 Years
Class A	5.27%	3.50%	4.44%
Class A (return after taxes on distributions)	5.27%	3.46%	4.40%
Class A (return after taxes on distributions and sale of Fund shares)	4.90%	3.55%	4.41%
Class B	4.97%	3.45%	4.26%
Class C	9.20%	3.83%	4.31%
Class I	10.11%	4.61%	5.09%
S&P Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	10.62%	4.86%	5.35%
Lipper Other States Municipal Debt Funds Classification Average (reflects no deduction for taxes or certain expenses)	9.87%	3.91%	4.43%

[1] The contingent deferred sales charge ("CDSC") on Class B shares declines over a six-year period from purchase. The CDSC on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[1] Other Expenses have been restated to reflect current contractual fees.

[1] Class A year-to-date total return as of June 30, 2012 was 4.30%.