Objective, Primary [Text Block]

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Risk/Return [Heading]

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Nuveen Short Term Municipal Bond Fund

Objective [Heading]

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Investment Objective

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The investment objective of the Fund is to provide current income that is exempt from federal income tax to the extent consistent with preservation of capital.

Expense [Heading]

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Fees and Expenses of the Fund

Expense Narrative [Text Block]

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The following tables describe the fees and expenses that you may pay if you buy, hold and sell 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 “How You Can Buy and Sell Shares” on page 42 of the Fund’s prospectus and “Purchase and Redemption of Fund Shares” on page S-60 of the Fund’s statement of additional information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

The tables and examples below do not reflect any commissions that shareholders may be required to pay directly to their financial intermediaries when buying or selling Class I shares.

Shareholder Fees Caption [Text]

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Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

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

Portfolio Turnover [Heading]

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Portfolio Turnover

Portfolio Turnover [Text Block]

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The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example,

affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 37% of the average value of its portfolio.

Portfolio Turnover, Rate

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37.00%

Expenses Deferred Charges [Text Block]

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

Expense Breakpoint Discounts [Text]

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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

Expense Example [Heading]

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Example

Expense Example Narrative [Text Block]

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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:

Strategy [Heading]

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Principal Investment Strategies

Strategy Narrative [Text Block]

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Under normal market conditions, the Fund invests at least 80% of the sum of its net assets and the amount of any borrowings for investment purposes in municipal bonds that pay interest that is exempt from regular federal personal income tax. These municipal bonds include obligations issued by U.S. states and their subdivisions, authorities, instrumentalities and corporations, as well as obligations issued by U.S. territories (such as Puerto Rico, the U.S. Virgin Islands and Guam) that pay interest that is exempt from regular federal personal income tax. The Fund may invest without limit in securities that generate income subject to the alternative minimum tax. The Fund normally may invest up to 20% of its net assets in taxable obligations. The Fund will attempt to maintain the weighted average maturity of its portfolio securities at three years or less under normal market conditions.

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 may utilize the following derivatives: futures contracts; options on futures contracts; swap agreements, including interest rate swaps, and options on swap agreements. The Fund may use these derivatives in an attempt to manage market risk, credit risk and yield curve risk, and to manage the effective maturity or duration of securities in the Fund’s portfolio. The Fund may not use such instruments to gain exposure to a security or type of security that it would be prohibited by its investment restrictions from purchasing directly.

The Fund’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued 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]

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Principal Risks

Risk Narrative [Text Block]

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The price and yield of this Fund will change daily. You could lose money by investing in the Fund. 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 listed below are presented alphabetically to facilitate your ability to find particular risks and compare them with the risks of other funds. Each risk summarized below is considered a "principal risk" of investing in the Fund, regardless of the order in which it appears.

Active Management Risk—The Fund’s sub-adviser actively manages the Fund’s investments. Consequently, the Fund is subject to the risk that the investment techniques and risk analyses employed by the Fund’s sub-adviser may not produce the desired results. This could cause the Fund to lose value or its investment results to lag relevant benchmarks or other funds with similar objectives.

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, during periods of falling interest rates, an issuer calls higher-yielding municipal bonds held by the Fund, the Fund may have to reinvest in securities with lower yields or higher risk of default, which may adversely impact the Fund’s performance.

Credit Risk—Credit risk is the risk that an issuer or other obligated party of a municipal bond may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a municipal bond may decline

because of concerns about the issuer’s ability or willingness to make such payments. The Fund's investments in inverse floaters will increase the Fund's credit risk.

Credit Spread Risk—Credit spread risk is the risk that credit spreads (i.e., the difference in yield between securities that is due to differences in their credit quality) may increase when the market believes that bonds generally have a greater risk of default. Increasing credit spreads may reduce the market values of the Fund’s municipal bonds. Credit spreads often increase more for lower rated and unrated securities than for investment grade securities. In addition, when credit spreads increase, reductions in market value will generally be greater for longer-maturity securities.

Cybersecurity Risk—Cybersecurity risk is the risk of an unauthorized breach and access to Fund assets, customer data (including private shareholder information), or proprietary information, or the risk of an incident occurring that causes the Fund, its investment adviser or sub-adviser, custodian, transfer agent, distributor or other service provider or a financial intermediary to suffer a data breach, data corruption or lose operational functionality. Successful cyber-attacks or other cyber-failures or events affecting the Fund or its service providers may adversely impact the Fund or its shareholders. Additionally, a cybersecurity breach could affect the issuers in which the Fund invests, which may cause the Fund’s investments to lose value.

Derivatives Risk—The use of derivatives involves additional risks and transaction costs which could leave the Fund in a worse position than if it had not used these instruments. Derivative instruments can be used to acquire or to transfer the risk and returns of a security or other asset without buying or selling the security or asset. These instruments may entail investment exposures that are greater than their cost would suggest. As a result, a small investment in derivatives can result in losses that greatly exceed the original investment. Derivatives can be highly volatile, illiquid and difficult to value. An over-the-counter derivative transaction between the Fund and a counterparty that is not cleared through a central counterparty also involves the risk that a loss may be sustained as a result of the failure of the counterparty to the contract to make required payments. The payment obligation for a cleared derivative transaction is guaranteed by a central counterparty, which exposes the Fund to the creditworthiness of the central counterparty.

High Yield Securities Risk—High yield securities, which are rated below investment grade and commonly referred to as “junk” bonds, and unrated securities of comparable quality are high risk investments that may cause income and principal losses for the Fund. They generally are considered to be speculative with respect to the ability to pay interest and repay principal, 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 or when the Fund experiences defaults on municipal bonds it holds. Income risk is generally higher for limited-term bonds so investors may experience a fluctuation in the monthly income from the Fund. 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 municipal bonds will decline because of rising interest rates. Very low or negative interest rates may magnify interest rate risk. Changing interest rates, including rates that fall below zero, may have unpredictable effects on markets, result in heightened market volatility and detract from the Fund’s performance to the extent that it is exposed to such interest rates. Municipal bonds may be subject to a greater risk of rising interest rates than would normally be the case due to the current period of historically low rates and the effect of potential government fiscal policy initiatives and resulting market reaction to those initiatives. When interest rates change, the values of longer-duration municipal bonds usually change more than the values of shorter-duration municipal bonds. Conversely, municipal bonds with shorter durations or maturities will be less volatile but may provide lower returns than municipal bonds with longer durations or maturities. Rising interest rates also may lengthen the duration of municipal bonds with call features, since exercise of the call becomes less likely as interest rates rise, which in turn will make the securities more sensitive to changes in interest rates and result in even steeper price declines in the event of further interest rate increases. In especially low interest rate environments, the income generated by the Fund’s investments may be less than the expenses of the Fund or a particular share class of the Fund, especially for share classes with higher ongoing expenses, in which case the Fund or a particular share class of the Fund would not generate sufficient net income to pay a dividend.

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 bond interest rates rise and will increase when short-term municipal bond 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 value of the Fund’s investments may go up or down, sometimes rapidly or unpredictably and for short or extended periods of time, due to the particular circumstances of individual issuers or due to general conditions impacting issuers more broadly. Global economies and financial markets have become highly interconnected, and thus economic, market or political conditions or events in one country or region might adversely impact the value of the Fund’s investments whether or not the Fund invests in such country or region. Events such as war, terrorism, natural and environmental disasters and the spread of infectious illnesses or other public health emergencies may have a severe negative impact on the global economy, could cause financial markets to experience extreme volatility and losses, and could result in the disruption of trading and the reduction of liquidity in many instruments.

Municipal Bond Market Liquidity Risk—Inventories of municipal bonds held by brokers and dealers have decreased in recent years, lessening their ability to make a market in these securities. This reduction in market making capacity has the potential to decrease the Fund’s ability to buy or sell bonds, and increase bond price volatility and trading costs, particularly during periods of economic or market stress. In addition, recent federal banking regulations may cause certain dealers to reduce their inventories of municipal bonds, which may further decrease the Fund’s ability to buy or sell bonds. As a result, the Fund may be forced to accept a lower price to sell a security, to sell other securities to raise cash, or to give up an investment opportunity, any of which could have a negative effect on performance. If the Fund needed to sell large blocks of bonds to raise cash (such as to meet heavy shareholder redemptions), those sales could further reduce the bonds’ prices and hurt performance.

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.

Municipal Securities Risk—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. The Fund may make significant investments in a particular segment of the municipal bond market or in the debt of issuers located in the same state or territory. Adverse conditions in such industry or location could have a correspondingly adverse effect on the financial condition of issuers. These conditions may cause the value of the Fund’s shares to fluctuate more than the values of shares of funds that invest in a greater variety of investments. The amount of public information available about municipal bonds is generally less than for certain corporate equities or bonds, meaning that the investment performance of the Fund may be more dependent on the analytical abilities of the Fund’s sub-adviser than funds that invest in stock or other corporate investments.

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 or other obligated party. Investments in taxable municipal bonds and certain derivatives utilized by the Fund may cause the Fund to have taxable investment income.

Unrated Bond Risk—Unrated municipal bonds determined by the Fund’s sub-adviser to be of comparable quality to rated municipal bonds which the Fund may purchase may pay a higher interest rate than such rated municipal bonds and be subject to a greater risk of illiquidity or price changes. Less public information is typically available about unrated municipal bonds or issuers than rated bonds or issuers.

Valuation Risk—The municipal bonds in which the Fund invests typically are valued by a pricing service utilizing a range of market-based inputs and assumptions, including price quotations obtained from broker-dealers making markets in such instruments, cash flows and transactions for comparable instruments. There is no assurance that the Fund will be able to buy or sell a portfolio security at the price established by the pricing service, which could result in a gain or loss to the Fund. Pricing services generally price municipal bonds assuming orderly transactions of an institutional “round lot” size, but some trades may occur in smaller, “odd lot” sizes, often at lower prices than institutional round lot trades. Over certain time periods, such differences could materially impact the performance of the Fund, which may not be sustainable. Alternative pricing services may incorporate different assumptions and inputs into their valuation methodologies, potentially resulting in different values for the same securities. As a result, if the Fund were to change pricing services, or if the Fund’s pricing service were to change its valuation methodology, there could be a material impact, either positive or negative, on the Fund’s net asset value.

Zero Coupon Bonds Risk—Because interest on zero coupon bonds is not paid on a current basis, the values of zero coupon bonds will be more volatile in response to interest rate changes than the values of bonds that distribute income

regularly. Although zero coupon bonds generate income for accounting purposes, they do not produce cash flow, and thus the Fund could be forced to liquidate securities at an inopportune time in order to generate cash to distribute to shareholders as required by tax laws.

Risk Lose Money [Text]

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The price and yield of this Fund will change daily. You could lose money by investing in the Fund.

Risk Not Insured Depository Institution [Text]

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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]

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Fund Performance

Performance Narrative [Text Block]

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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/performance or by calling (800) 257-8787.

Performance Information Illustrates Variability of Returns [Text]

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The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares.

Performance Availability Phone [Text]

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(800) 257-8787

Performance Availability Website Address [Text]

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www.nuveen.com/performance

Performance Past Does Not Indicate Future [Text]

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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]

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Class A Annual Total Return*

Bar Chart Narrative [Text Block]

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The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. 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]

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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]

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During the ten-year period ended December 31, 2021, the Fund’s highest and lowest quarterly returns were 1.80%
and -0.98%, respectively, for the quarters ended June 30, 2020 and March 31, 2020.

Performance Table Heading

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Average Annual Total Returnsfor the Periods EndedDecember 31, 2021

Performance Table Uses Highest Federal Rate

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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]

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After-tax returns are shown for Class A shares only; after-tax returns for other share classes will vary.

Performance Table Narrative

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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 had not been in place, returns would have been reduced.

Nuveen Short Term Municipal Bond Fund | Class A

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

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2.50%

Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)

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none

^[1]

Maximum Sales Charge (Load) Imposed on Reinvested Dividends

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none

Exchange Fee

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none

Annual Low Balance Account Fee (for accounts under $1,000)

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$ 15

^[2]

Management Fees

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0.39%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.20%

Other Expenses

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0.08%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.67%

rr_ExpenseExampleYear01

$ 317

rr_ExpenseExampleYear03

459

rr_ExpenseExampleYear05

614

rr_ExpenseExampleYear10

1,064

rr_ExpenseExampleNoRedemptionYear01

317

rr_ExpenseExampleNoRedemptionYear03

459

rr_ExpenseExampleNoRedemptionYear05

614

Year to Date Return, Label

rr_ExpenseExampleNoRedemptionYear10

$ 1,064

2012

rr_AnnualReturn2012

2.34%

^[3]

2013

rr_AnnualReturn2013

0.95%

^[3]

2014

rr_AnnualReturn2014

0.87%

^[3]

2015

rr_AnnualReturn2015

0.60%

^[3]

2016

rr_AnnualReturn2016

(0.15%)

^[3]

2017

rr_AnnualReturn2017

1.18%

^[3]

2018

rr_AnnualReturn2018

1.22%

^[3]

2019

rr_AnnualReturn2019

3.24%

^[3]

2020

rr_AnnualReturn2020

1.89%

^[3]

2021

rr_AnnualReturn2021

0.11%

^[3]

rr_YearToDateReturnLabel

year-to-date total return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2022

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(3.22%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2020

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

1.80%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2020

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(0.98%)

rr_AverageAnnualReturnYear01

(2.37%)

rr_AverageAnnualReturnYear05

1.00%

rr_AverageAnnualReturnYear10

0.97%

rr_AverageAnnualReturnSinceInception

Nuveen Short Term Municipal Bond Fund | Class C

rr_AverageAnnualReturnInceptionDate

Oct. 25, 2002

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

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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

0.39%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other Expenses

rr_OtherExpensesOverAssets

0.08%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.47%

rr_ExpenseExampleYear01

$ 150

rr_ExpenseExampleYear03

465

rr_ExpenseExampleYear05

803

rr_ExpenseExampleYear10

1,757

rr_ExpenseExampleNoRedemptionYear01

150

rr_ExpenseExampleNoRedemptionYear03

465

rr_ExpenseExampleNoRedemptionYear05

803

rr_ExpenseExampleNoRedemptionYear10

$ 1,757

rr_AverageAnnualReturnYear01

(0.75%)

rr_AverageAnnualReturnYear05

0.71%

rr_AverageAnnualReturnYear10

rr_AverageAnnualReturnSinceInception

0.37%

Nuveen Short Term Municipal Bond Fund | Class I

rr_AverageAnnualReturnInceptionDate

Feb. 10, 2014

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_RiskReturnAbstract

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

0.39%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.08%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.47%

rr_ExpenseExampleYear01

$ 48

rr_ExpenseExampleYear03

151

rr_ExpenseExampleYear05

263

rr_ExpenseExampleYear10

591

rr_ExpenseExampleNoRedemptionYear01

rr_ExpenseExampleNoRedemptionYear03

151

rr_ExpenseExampleNoRedemptionYear05

263

rr_ExpenseExampleNoRedemptionYear10

$ 591

rr_AverageAnnualReturnYear01

0.20%

rr_AverageAnnualReturnYear05

1.72%

rr_AverageAnnualReturnYear10

1.43%

rr_AverageAnnualReturnSinceInception

Nuveen Short Term Municipal Bond Fund | (return after taxes on distributions) | Class A

rr_AverageAnnualReturnInceptionDate

Oct. 25, 2002

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

(2.38%)

rr_AverageAnnualReturnYear05

1.00%

rr_AverageAnnualReturnYear10

0.96%

rr_AverageAnnualReturnSinceInception

Nuveen Short Term Municipal Bond Fund | (return after taxes on distributions and sale of Fund shares) | Class A

rr_AverageAnnualReturnInceptionDate

Oct. 25, 2002

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

(1.05%)

rr_AverageAnnualReturnYear05

1.05%

rr_AverageAnnualReturnYear10

1.02%

rr_AverageAnnualReturnSinceInception

Nuveen Short Term Municipal Bond Fund | S&P Municipal Bond Short Index (reflects no deduction for fees, expenses or taxes)

rr_AverageAnnualReturnInceptionDate

Oct. 25, 2002

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

0.41%

^[4]

rr_AverageAnnualReturnYear05

1.75%

^[4]

Nuveen Short Term Municipal Bond Fund | S&P Municipal Bond Short Index (reflects no deduction for fees, expenses or taxes) | Class C

rr_AverageAnnualReturnYear10

1.35%

^[4]

rr_RiskReturnAbstract

Nuveen Short Term Municipal Bond Fund | Lipper Short Municipal Debt Funds Category Average (reflects no deduction for taxes or sales loads)

rr_AverageAnnualReturnSinceInception

1.36%

^[4]

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

0.13%

^[5]

rr_AverageAnnualReturnYear05

1.43%

^[5]

Nuveen Short Term Municipal Bond Fund | Lipper Short Municipal Debt Funds Category Average (reflects no deduction for taxes or sales loads) | Class C

rr_AverageAnnualReturnYear10

1.02%

^[5]

rr_RiskReturnAbstract