v3.26.1
Label Element Value
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk/Return [Heading] oef_RiskReturnHeading Fund Summary
Objective [Heading] oef_ObjectiveHeading Investment Objective(s)
Objective, Primary [Text Block] oef_ObjectivePrimaryTextBlock
The Fund’s investment objective is to provide protection from the negative effects of unanticipated inflation.
Expense Heading [Optional Text] oef_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] oef_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund.
The table and Examples below do not reflect any transaction fees that may be charged by financial intermediaries or commissions that a shareholder may be required to pay directly to its financial intermediary when buying or selling Class Y or Class R6 shares. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information – Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI).
Shareholder Fees Caption [Optional Text] oef_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Optional Text] oef_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination Jun. 30, 2026
Expenses Deferred Charges [Text Block] oef_ExpensesDeferredChargesTextBlock A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”
Expense Breakpoint Discounts [Text] oef_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Invesco Funds.
Expense Breakpoint, Minimum Investment Required [Amount] oef_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 100,000
Expense Example [Heading] oef_ExpenseExampleHeading Example.
Expense Example Narrative [Text Block] oef_ExpenseExampleNarrativeTextBlock
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.
The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. This Example does not include commissions and/or other forms of compensation that investors may pay on transactions in Class Y and Class R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain equal to the Total
Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in the first year and the Total Annual Fund Operating Expenses thereafter.
Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Portfolio Turnover [Heading] oef_PortfolioTurnoverHeading Portfolio Turnover.
Portfolio Turnover [Text Block] oef_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 41% of the average value of its portfolio.
Portfolio Turnover, Rate oef_PortfolioTurnoverRate 41.00%
Strategy [Heading] oef_StrategyHeading Principal Investment Strategies of the Fund
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock
The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in the component securities of the ICE BofA 1-5 Year US Inflation-Linked Treasury Index (the Index) and in derivatives and other instruments that have economic characteristics similar to such securities. For purposes of the Fund’s 80% investment policy, the Fund considers the components of the index to be short duration inflation-protected securities. The Index is comprised of U.S. Treasury Inflation-Protected Securities (TIPS) with at least $1 billion in outstanding face value, at least 18 months to maturity at point of issuance, and a remaining term to final maturity of at least 1 year and less than 5 years at the time of index rebalancing. The Fund can also invest the remainder of its assets in fixed income securities that are not included in the Index, but which the Fund’s investment adviser, Invesco Advisers, Inc. (Invesco or the Adviser), believes will help the Fund track the Index. The Fund generally expects that its duration, yield and maturity will be substantially similar to those of the Index.
The Fund normally seeks to maintain an average portfolio effective duration that is within +/- 1 year of the duration of the Index, which was 1.78 years as of February 28, 2026.
TIPS are publicly issued, U.S dollar denominated, U.S. government debt securities issued by the U.S. Treasury that have principal and interest payments linked to official inflation (as measured by the Consumer Price Index or CPI) and their payments are supported by the full faith and credit of the United States. As of February 28, 2026, there were 20 TIPS in the Index.
The Fund can invest in derivative instruments, such as swap contracts, options and futures contracts, to seek exposure to certain securities or groups of securities included in the Index.
Derivatives and other instruments that provide investment exposure to the investments that are the subject of the 80% investment policy stated above and derivatives that provide investment exposure to one or more market risk factors associated with such investments may be included in the Fund's 80% investment policy.
The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis, which means that the Fund buys or sells a security with payment and delivery taking place in the future.
The portfolio manager primarily uses a replication strategy to track, as closely as possible, the securities in the Index and their respective weightings, by investing directly in securities that make up the Index. The
portfolio manager adjusts the composition of the Fund to reflect changes in the composition of the Index generally at each rebalance of the Index. The Fund may also use a representative sampling methodology to track the performance of the Index. Representative sampling means that the portfolio manager may use a quantitative analysis to select either a subset of the securities that make up the Index or a combination of some or all of the securities that make up the Index and other securities that are not part of the Index. In either case, the representative sampling of securities selected by the portfolio manager should have, in the aggregate, investment characteristics that are similar to the Index in terms of key risk factors, performance attributes and other characteristics, such as market capitalization, duration, maturity, credit quality, yield and coupon, as applicable. It is expected that the portfolio manager will use this representative sampling methodology where it is difficult to acquire the necessary securities that make up the Index, where the asset levels of the Fund do not allow for the holding of all the securities that make up the Index or where it is otherwise beneficial to the Fund to do so.
Unlike many investment companies, the Fund does not utilize an investment strategy that attempts to outperform the Index. Rather, the Fund utilizes an indexing approach, which may eliminate the chance that the Fund will substantially outperform the Index, but it may also reduce some of the risk of active management. Indexing generally achieves lower costs by keeping portfolio turnover low in comparison to actively managed investment companies.
Bar Chart and Performance Table [Heading] oef_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] oef_PerformanceNarrativeTextBlock
The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund’s performance to that of a broad measure of market performance and one or more additional indices with characteristics relevant to the Fund. The Fund's past performance (before and after taxes) is not necessarily an indication of its future performance.
Fund performance reflects any applicable fee waivers and expense reimbursements. Performance returns would be lower without applicable fee waivers and expense reimbursements.
All Fund performance shown assumes the reinvestment of dividends and capital gains and the effect of the Fund’s expenses.
Updated performance information is available on the Fund's website at www.invesco.com/us.
Performance Information Illustrates Variability of Returns [Text] oef_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and performance table provide an indication of the risks of investing in the Fund.
Performance Availability Website Address [Text] oef_PerformanceAvailabilityWebSiteAddress www.invesco.com/us
Performance Past Does Not Indicate Future [Text] oef_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading] oef_BarChartHeading Annual Total Returns
Bar Chart Narrative [Text Block] oef_BarChartNarrativeTextBlock
The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower.
Bar Chart Does Not Reflect Sales Loads [Text] oef_BarChartDoesNotReflectSalesLoads The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower.
Bar Chart Closing [Text Block] oef_BarChartClosingTextBlock
Class A2
Period Ended
Returns
Year-to-date
March 31, 2026
0.85%
Best Quarter
March 31, 2025
3.29%
Worst Quarter
September 30, 2022
-3.28%
Year to Date Return, Label [Optional Text] oef_YearToDateReturnLabel Year-to-date
Bar Chart, Year to Date Return, Date oef_BarChartYearToDateReturnDate Mar. 31, 2026
Bar Chart, Year to Date Return oef_BarChartYearToDateReturn 0.85%
Highest Quarterly Return, Label [Optional Text] oef_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date oef_BarChartHighestQuarterlyReturnDate Mar. 31, 2025
Highest Quarterly Return oef_BarChartHighestQuarterlyReturn 3.29%
Lowest Quarterly Return, Label [Optional Text] oef_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date oef_BarChartLowestQuarterlyReturnDate Sep. 30, 2022
Lowest Quarterly Return oef_BarChartLowestQuarterlyReturn (3.28%)
Performance Table Heading oef_PerformanceTableHeading Average Annual Total Returns (for the periods ended December 31, 2025) 
Index No Deduction for Fees, Expenses, or Taxes [Text] oef_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
Performance Table Uses Highest Federal Rate oef_PerformanceTableUsesHighestFederalRate 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 Not Relevant to Tax Deferred oef_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans, 529 college savings plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] oef_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown for Class A2 shares only and after-tax returns for other classes will vary.
Performance Table Closing [Text Block] oef_PerformanceTableClosingTextBlock
After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans, 529 college savings plans or individual retirement accounts. After-tax returns are shown for Class A2 shares only and after-tax returns for other classes will vary.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Risk Lose Money [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock As with any mutual fund investment, loss of money is a risk of investing.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Risk Not Insured [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Market Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Market Risk. The market values of the Fund’s investments, and therefore the value of the Fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. The value of the Fund’s investments may go up or down due to general market conditions that are not specifically related to the particular issuer. These market conditions may include real or perceived adverse economic conditions, changes in trade regulation or economic sanctions, changes in the general outlook for revenues or corporate earnings, changes in interest or currency rates, regional or global instability and uncertainty, natural or environmental disasters, widespread disease or other public health issues, war, military conflict, acts of terrorism, economic crisis or adverse investor sentiment generally, among others. Certain changes in the U.S. economy in particular, such as when the U.S. economy weakens or when its financial markets decline, may have a material adverse effect on global financial markets as a whole, and on the securities to which the Fund has exposure. Increasingly strained relations between the U.S. and foreign countries, including as a result of economic sanctions and tariffs, may also adversely affect U.S. issuers, as well as non-U.S. issuers.
During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Fund will rise in value.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Index Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Index Risk. Unlike many investment companies, the Fund does not utilize an investing strategy that seeks returns in excess of its Index. Therefore, the Fund would not necessarily buy or sell a security unless that security is added to or removed from, respectively, the Index, even if that security generally is underperforming. Additionally, the Fund generally rebalances its portfolio in accordance with the Index, and, therefore, any changes to the Index’s rebalance schedule will typically result in corresponding changes to the Fund’s rebalance schedule.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Debt Securities Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Debt Securities Risk. The prices of debt securities held by the Fund will be affected by changes in interest rates, the creditworthiness of the
issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause the Fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates. Falling interest rates may also reduce the Fund’s distributable income because interest payments on floating rate debt instruments held by the Fund will decline. The Fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. The credit analysis applied to the Fund’s debt securities may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Inflation-Indexed Securities Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Inflation-Indexed Securities Risk. The values of inflation-indexed securities generally fluctuate in response to changes in real interest rates. Such changes may be difficult to predict and it is possible that an investment in inflation-indexed securities will have an effect different from that anticipated. Because of the inflation-adjustment feature, these securities typically have lower yields than traditional fixed-rate securities with similar maturities. Normally inflation-indexed securities will decline in price when real interest rates rise which could cause losses for the Fund. As a result, the Fund’s income from its investments in these securities is likely to fluctuate considerably more than the income distributions of its investments in more traditional fixed-income securities.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Inflation-Indexed Securities Tax Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Inflation-Indexed Securities Tax Risk. Any increase in the principal amount of an inflation-indexed security may be included for tax purposes in the Fund’s gross income, even though no cash attributable to such gross income has been received by the Fund. In such event, the Fund may be required to make annual distributions to shareholders that exceed the cash it has otherwise received. In order to pay such distributions, the Fund may be required to raise cash by selling portfolio investments. The sale of such investments could result in capital gains to the Fund and additional capital gain distributions to shareholders. In addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by the Fund may cause amounts previously distributed to shareholders in the taxable year as income to be characterized as a return of capital.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Changing Fixed Income Market Conditions Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Changing Fixed Income Market Conditions Risk. Increases in the federal funds and equivalent foreign rates or other changes to monetary policy or regulatory actions may expose fixed income markets to heightened volatility, perhaps suddenly and to a significant degree, and to reduced liquidity for certain fixed income investments, particularly those with longer maturities. Such changes and resulting increased volatility may adversely impact the Fund, including its operations, universe of potential investment options, and return potential. It is difficult to predict the impact of interest rate changes on various markets. In addition, decreases in fixed income dealer market-making capacity may also potentially lead to heightened volatility and reduced liquidity in the fixed income markets. As a result, the value of the Fund’s investments and share price may decline. Changes in central bank policies and other governmental actions and political events within the U.S. and abroad may also, among other things, affect investor and consumer expectations and confidence in the financial markets, which could result in higher than normal redemptions by shareholders, which could potentially increase the Fund’s portfolio turnover rate and transaction costs.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | U.S. Government Obligations Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
U.S. Government Obligations Risk. U.S. government securities include securities that are issued or guaranteed by the U.S. Treasury, by various agencies of the U.S. government, or by various instrumentalities which have been established or sponsored by the U.S. government. U.S. Treasury securities are backed by the “full faith and credit” of the United States, which may be negatively affected by an actual or threatened failure of the U.S. government to pay its obligations. Securities issued or
guaranteed by federal agencies and U.S. government-sponsored instrumentalities may or may not be backed by the full faith and credit of the United States. In the case of those U.S. government securities not backed by the full faith and credit of the United States, the investor must look principally to the agency or instrumentality issuing or guaranteeing the security for ultimate repayment, and may not be able to assert a claim against the United States itself in the event that the agency or instrumentality does not meet its commitment. The U.S. government, its agencies and instrumentalities do not guarantee the market value of their securities, and consequently, the value of such securities may fluctuate.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Derivatives Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Derivatives Risk. The value of a derivative instrument depends largely on (and is derived from) the value of an underlying security, currency, commodity, interest rate, index or other asset (each referred to as an underlying asset). In addition to risks relating to the underlying assets, the use of derivatives may include other, possibly greater, risks, including counterparty, leverage and liquidity risks. Counterparty risk is the risk that the counterparty to the derivative contract will default on its obligation to pay the Fund the amount owed or otherwise perform under the derivative contract. Derivatives create leverage risk because they do not require payment up front equal to the economic exposure created by holding a position in the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative or the anticipated value of the underlying asset, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may also be less liquid than more traditional investments and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. Derivatives strategies may not always be successful. For example, derivatives used for hedging or to gain or limit exposure to a particular market segment may not provide the expected benefits, particularly during adverse market conditions.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | When-Issued, Delayed Delivery and Forward Commitment Risks [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
When-Issued, Delayed Delivery and Forward Commitment Risks. When-issued and delayed delivery transactions subject the Fund to market risk because the value or yield of a security at delivery may be more or less than the purchase price or yield generally available when delivery occurs, and counterparty risk because the Fund relies on the buyer or seller, as the case may be, to consummate the transaction. These transactions also have a leveraging effect on the Fund because the Fund commits to purchase securities that it does not have to pay for until a later date, which increases the Fund’s overall investment exposure and, as a result, its volatility.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Non-Correlation Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Non-Correlation Risk. The return of the Fund’s assets managed pursuant to an indexing approach (Indexed Assets) may not match the return of the index the Fund seeks to track with respect to the corresponding index for a number of reasons. For example, the Fund incurs operating expenses not applicable to the corresponding index, and incurs costs in buying and selling securities, especially when rebalancing securities holdings to reflect changes in the corresponding index. In addition, the performance of the Indexed Assets and the corresponding index may vary due to asset valuation differences and differences between the Indexed Assets and the corresponding index resulting from legal restrictions, costs or liquidity constraints.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Sampling Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Sampling Risk. The Fund’s use of a representative sampling methodology will result in its holding a smaller number of securities than are in the Index and in the Fund holding securities not included in the Index. As a result, an adverse development respecting an issuer of securities held by the Fund could result in a greater decline in the Fund’s NAV than would be the case if all of the securities in the Index were held. The Fund’s use of a representative sampling approach may also include the risk that it may not
track the return of the Index as well as it would have if the Fund held all of the securities in the Index.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Valuation Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Valuation Risk. The price the Fund could receive upon the sale of a portfolio investment may differ from the Fund’s valuation of the investment, particularly for investments that trade in thin or volatile markets or that are valued using a fair valuation methodology. Fixed income securities are often valued assuming orderly transactions of institutional round lot size, but a Fund may hold or transact in the same securities in smaller, odd lot sizes. Odd lots often trade at lower prices than institutional round lots. Financial information related to securities of non-U.S. issuers may be less reliable than information related to securities of U.S. issuers, which may make it difficult to obtain a current price for a non-U.S. security held by the Fund. When market quotations are not readily available for Fund investments, those investments are fair valued by the Adviser. There are multiple methods that can be used to fair value a portfolio investment and such methods may involve more subjectivity than the use of market quotations. The value established for an investment through fair valuation may be different from what would be produced if the investment had been valued using market quotations. In addition, there is no assurance that the Fund could sell a portfolio investment at any time for the value ascribed to it for purposes of calculating the Fund’s net asset value, and it is possible that the Fund could incur a loss because an investment is sold at a discount to its ascribed value. The ability to value investments may also be impacted by technological issues and/or errors by pricing services or other third-party service providers.
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Class A2  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 1.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00%
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.20%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.15%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.21%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.56%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.06%) [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 151
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 272
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 404
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 789
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Class A  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.50%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00% [2]
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.20%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.21%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.66%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.06%) [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 310
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 450
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 603
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,046
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | CLASS R5  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00%
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.20%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.12%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.32%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.01%) [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.31%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 32
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 102
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 179
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 405
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Class Y  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00%
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.20%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.21%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.41%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.06%) [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.35%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 36
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 126
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 224
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 512
INVESCO Short Duration Inflation Protected Fund | INVESCO Short Duration Inflation Protected Fund | Class R6  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00%
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.20%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.11%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.31%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.05%) [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.26%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 27
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 95
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 169
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 388
INVESCO Short Duration Inflation Protected Fund | Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 7.30%
Average Annual Return, Percent oef_AvgAnnlRtrPct (0.36%)
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.01%
INVESCO Short Duration Inflation Protected Fund | ICE BofA 1-5 Year US Inflation-Linked Treasury Index (reflects no deduction for fees, expenses or taxes)  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 6.46%
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.30%
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.15%
INVESCO Short Duration Inflation Protected Fund | Class A2  
Prospectus [Line Items] oef_ProspectusLineItems  
Annual Return [Percent] oef_AnnlRtrPct 2.74%
Annual Return [Percent] oef_AnnlRtrPct 0.39%
Annual Return [Percent] oef_AnnlRtrPct (0.05%)
Annual Return [Percent] oef_AnnlRtrPct 4.63%
Annual Return [Percent] oef_AnnlRtrPct 5.19%
Annual Return [Percent] oef_AnnlRtrPct 5.05%
Annual Return [Percent] oef_AnnlRtrPct (4.49%)
Annual Return [Percent] oef_AnnlRtrPct 4.11%
Annual Return [Percent] oef_AnnlRtrPct 4.03%
Annual Return [Percent] oef_AnnlRtrPct 5.97%
Average Annual Return, Percent oef_AvgAnnlRtrPct 4.90%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.65%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.61%
Performance Inception Date oef_PerfInceptionDate Dec. 15, 1987
INVESCO Short Duration Inflation Protected Fund | Class A2 | After Taxes on Distributions  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.13%
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.96%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.40%
INVESCO Short Duration Inflation Protected Fund | Class A2 | After Taxes on Distributions and Sales  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.89%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.29%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.47%
INVESCO Short Duration Inflation Protected Fund | Class A  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.24%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.23%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.33%
Performance Inception Date oef_PerfInceptionDate Oct. 31, 2002
INVESCO Short Duration Inflation Protected Fund | CLASS R5  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 6.12%
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.02%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.87%
Performance Inception Date oef_PerfInceptionDate Jul. 13, 1987
INVESCO Short Duration Inflation Protected Fund | Class Y  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 6.12%
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.02%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.86%
Performance Inception Date oef_PerfInceptionDate Oct. 03, 2008
INVESCO Short Duration Inflation Protected Fund | Class R6  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 6.12%
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.02%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.87%
Performance Inception Date oef_PerfInceptionDate Dec. 31, 2015
[1] Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed, through June 30, 2026, to waive advisory fees and/or reimburse expenses to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding certain items discussed in the SAI) of Class A, Class A2, Class Y, Class R5 and Class R6 shares to 0.55%, 0.45%, 0.30%, 0.30% and 0.30%, respectively, of the Fund’s average daily net assets (the “expense limits”). Effective July 1, 2026, the Adviser has contractually agreed to waive advisory fees and/or reimburse expenses to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding certain items discussed in the SAI) of Class A, Class A2, Class Y, Class R5 and Class R6 shares to 0.60%, 0.50%, 0.35%, 0.31% and 0.26%, respectively, of the Fund’s average daily net assets. Unless Invesco continues the fee waiver agreement, it will terminate on June 30, 2027. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.
[2] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”