v3.24.4
Label Element Value
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk/Return [Heading] oef_RiskReturnHeading Invesco Treasury Obligations Portfolio
Objective [Heading] oef_ObjectiveHeading Investment Objective(s)
Objective, Primary [Text Block] oef_ObjectivePrimaryTextBlock
The Fund’s investment objective is to provide current income consistent with preservation of capital and liquidity.
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.
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 Dec. 31, 2025
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. 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:
Strategy [Heading] oef_StrategyHeading Principal Investment Strategies of the Fund
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock
The Fund primarily invests its assets in U.S. Treasury Obligations backed by full faith and credit of the U.S. government maturing within 397 calendar days of the date of purchase, with certain exceptions permitted by applicable regulations.
The Fund also seeks to distribute dividends that are exempt from state and local taxation in many states.
The Fund is a Government Money Market Fund, as defined by Rule 2a-7 under the Investment Company Act of 1940, as amended (Rule 2a-7), that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests at least 99.5% of its total assets in cash and Government Securities. Government Security generally means any securities issued or guaranteed as to principal or interest by the United States, or by a person controlled or supervised by and acting as an instrumentality of the government of the United States.
The Fund invests in conformity with U.S. Securities and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar denominated securities maturing within 397 calendar days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 calendar days, and a dollar-weighted average life to maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 of no more than 120 calendar days. The Fund will limit investments to those securities that are Eligible Securities as defined by applicable regulations at the time of purchase. Eligible Securities are (i) Government Securities, (ii) shares of other money market funds, and (iii) securities determined to present minimal credit risks by Invesco Advisers, Inc. (Invesco or the Adviser) pursuant to guidelines approved by the Fund's Board of Trustees (the Board).
The Fund has adopted a policy to invest under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in direct obligations of the U.S. Treasury, which include Treasury bills, notes and bonds. In contrast to the Fund’s 99.5% policy, the Fund’s 80% policy does not include cash. The Fund anticipates meeting its 80% investment policy because it already invests, under normal circumstances, all, or substantially all, of its net assets in such securities.
In selecting securities for the Fund’s portfolio, the portfolio managers focus on securities that offer safety, liquidity, and a competitive yield.
The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.
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 Fund's past performance 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. Updated performance information is available on the Fund's website at www.invesco.com/us.
All Fund performance shown assumes the reinvestment of dividends and capital gains and the effect of the Fund’s expenses.
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 is not necessarily an indication of its future performance.
Bar Chart [Heading] oef_BarChartHeading Annual Total Returns
Bar Chart Closing [Text Block] oef_BarChartClosingTextBlock
Corporate
Period Ended
Returns
Year-to-date
September 30, 2024
3.90%
Best Quarter
December 31, 2023
1.32%
Worst Quarter
December 31, 2021
0.00%
Year to Date Return, Label [Optional Text] oef_YearToDateReturnLabel Year-to-date
Bar Chart, Year to Date Return, Date oef_BarChartYearToDateReturnDate Sep. 30, 2024
Bar Chart, Year to Date Return oef_BarChartYearToDateReturn 3.90%
Highest Quarterly Return, Label [Optional Text] oef_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date oef_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return oef_BarChartHighestQuarterlyReturn 1.32%
Lowest Quarterly Return, Label [Optional Text] oef_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date oef_BarChartLowestQuarterlyReturnDate Dec. 31, 2021
Lowest Quarterly Return oef_BarChartLowestQuarterlyReturn none
Performance Table Heading oef_PerformanceTableHeading Average Annual Total Returns (for the periods ended December 31, 2023) 
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | Risk Not Insured [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock An investment in the Fund is not a bank account and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | 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 Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | Money Market Fund Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock Money Market Fund Risk. You could lose money investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The share price of money market funds can fall below the $1.00 share price. The Fund’s sponsor is not required to reimburse the Fund for losses, and you should not rely on or expect that the sponsor will enter into support agreements or take other actions to provide financial support to the Fund or maintain the Fund’s $1.00 share price at any time, including during periods of market stress. The credit quality of the Fund’s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund’s share price. The Fund’s share price can also be negatively affected during periods of high redemption pressures, illiquid markets, and/or significant market volatility.
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | 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 Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | 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 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 transaction costs.
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | U.S. Government Obligations Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock U.S. Government Obligations Risk. Obligations of U.S. government agencies and authorities receive varying levels of support and may not be backed by the full faith and credit of the U.S. government, which could affect the Fund’s ability to recover should they default. No assurance can be given that the U.S. government will provide financial support to its agencies and authorities if it is not obligated by law to do so.
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | 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, such as real or perceived adverse economic conditions, changes in the general outlook for revenues or corporate earnings, changes in interest or currency rates, regional or global instability, natural or environmental disasters, widespread disease or other public health issues, war, military conflict, acts of terrorism, economic crisis or adverse investor sentiment generally. 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 Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | Yield Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock Yield Risk. The Fund’s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. When interest rates are very low or negative, the Fund may not be able to maintain a positive yield or pay Fund expenses out of current income without impairing the Fund’s ability to maintain a stable net asset value. Additionally, inflation may outpace and diminish investment returns over time. Recent and potential future changes in monetary policy made by central banks and/or their governments may affect interest rates.
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | Management Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock Management Risk. The Fund is actively managed and depends heavily on the Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. There can be no guarantee that the Adviser’s investment techniques or investment decisions will produce the desired results. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective.
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | Risk Money Market Fund May Not Preserve Dollar [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | Risk Money Market Fund Sponsor May Not Provide Support [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock The Fund’s sponsor is not required to reimburse the Fund for losses, and you should not rely on or expect that the sponsor will enter into support agreements or take other actions to provide financial support to the Fund or maintain the Fund’s $1.00 share price at any time, including during periods of market stress.
Invesco Treasury Obligations Portfolio | Invesco Treasury Obligations Portfolio - Corporate Class | Corporate Class  
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 0.12%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.03%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.09%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.24%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.03%) [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.21%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 22
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 74
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 132
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 303
Invesco Treasury Obligations Portfolio - Corporate Class | Corporate Class  
Prospectus [Line Items] oef_ProspectusLineItems  
Annual Return [Percent] oef_AnnlRtrPct 0.03%
Annual Return [Percent] oef_AnnlRtrPct 0.10%
Annual Return [Percent] oef_AnnlRtrPct 0.15%
Annual Return [Percent] oef_AnnlRtrPct 0.67%
Annual Return [Percent] oef_AnnlRtrPct 1.68%
Annual Return [Percent] oef_AnnlRtrPct 2.01%
Annual Return [Percent] oef_AnnlRtrPct 0.37%
Annual Return [Percent] oef_AnnlRtrPct 0.01%
Annual Return [Percent] oef_AnnlRtrPct 1.49%
Annual Return [Percent] oef_AnnlRtrPct 4.92%
Average Annual Return, Percent oef_AvgAnnlRtrPct 4.92%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.75%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.14%
Performance Inception Date oef_PerfInceptionDate Feb. 23, 2006
[1] Invesco Advisers, Inc. (Invesco or 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 Corporate Class shares to 0.21% , of the Fund's average daily net assets (the “expense limit”). Unless Invesco continues the fee waiver agreement, it will terminate on December 31, 2025. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limit without approval of the Board of Trustees.