v3.25.1
Shareholder Report
 6 Months Ended
Feb. 28, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Short-Term Investments Trust
Entity Central Index Key 0000205007
Entity Investment Company Type N-1A
Document Period End Date Feb. 28, 2025
C000000496 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Government & Agency Portfolio
Class Name Institutional Class
Trading Symbol AGPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Government & Agency Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Government & Agency Portfolio
(Institutional Class)		 $8 0.16%
*
Annualized.
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.16% [1]
Net Assets $ 77,915,095,731
Holdings Count | Holding 166
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $77,915,095,731
Total number of portfolio holdings 166
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 71.6%
8-30 0.6%
31-60 3.8%
61-90 2.7%
91-180 3.2%
181+ 18.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000498 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Government & Agency Portfolio
Class Name Private Investment Class
Trading Symbol GPVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Government & Agency Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Government & Agency Portfolio
(Private Investment Class)		 $23 0.46%
*
Annualized.
Expenses Paid, Amount $ 23
Expense Ratio, Percent 0.46% [2]
Net Assets $ 77,915,095,731
Holdings Count | Holding 166
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $77,915,095,731
Total number of portfolio holdings 166
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 71.6%
8-30 0.6%
31-60 3.8%
61-90 2.7%
91-180 3.2%
181+ 18.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000497 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Government & Agency Portfolio
Class Name Personal Investment Class
Trading Symbol AGSXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Government & Agency Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Government & Agency Portfolio
(Personal Investment Class)		 $36 0.71%
*
Annualized.
Expenses Paid, Amount $ 36
Expense Ratio, Percent 0.71% [3]
Net Assets $ 77,915,095,731
Holdings Count | Holding 166
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $77,915,095,731
Total number of portfolio holdings 166
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 71.6%
8-30 0.6%
31-60 3.8%
61-90 2.7%
91-180 3.2%
181+ 18.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000495 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Government & Agency Portfolio
Class Name Cash Management Class
Trading Symbol AGMXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Government & Agency Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Government & Agency Portfolio
(Cash Management Class)		 $12 0.24%
*
Annualized.
Expenses Paid, Amount $ 12
Expense Ratio, Percent 0.24% [4]
Net Assets $ 77,915,095,731
Holdings Count | Holding 166
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $77,915,095,731
Total number of portfolio holdings 166
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 71.6%
8-30 0.6%
31-60 3.8%
61-90 2.7%
91-180 3.2%
181+ 18.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000499 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Government & Agency Portfolio
Class Name Reserve Class
Trading Symbol AGVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Government & Agency Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Government & Agency Portfolio
(Reserve Class)		 $52 1.03%
*
Annualized.
Expenses Paid, Amount $ 52
Expense Ratio, Percent 1.03% [5]
Net Assets $ 77,915,095,731
Holdings Count | Holding 166
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $77,915,095,731
Total number of portfolio holdings 166
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 71.6%
8-30 0.6%
31-60 3.8%
61-90 2.7%
91-180 3.2%
181+ 18.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000500 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Government & Agency Portfolio
Class Name Resource Class
Trading Symbol AGOXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Government & Agency Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Government & Agency Portfolio
(Resource Class)		 $16 0.32%
*
Annualized.
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.32% [6]
Net Assets $ 77,915,095,731
Holdings Count | Holding 166
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $77,915,095,731
Total number of portfolio holdings 166
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 71.6%
8-30 0.6%
31-60 3.8%
61-90 2.7%
91-180 3.2%
181+ 18.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000029703 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Government & Agency Portfolio
Class Name Corporate Class
Trading Symbol AGCXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Government & Agency Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Government & Agency Portfolio
(Corporate Class)		 $10 0.19%
*
Annualized.
Expenses Paid, Amount $ 10
Expense Ratio, Percent 0.19% [7]
Net Assets $ 77,915,095,731
Holdings Count | Holding 166
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $77,915,095,731
Total number of portfolio holdings 166
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 71.6%
8-30 0.6%
31-60 3.8%
61-90 2.7%
91-180 3.2%
181+ 18.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000224183 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Government & Agency Portfolio
Class Name CAVU Securities Class
Trading Symbol CVGXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Government & Agency Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Government & Agency Portfolio
(CAVU Securities Class)		 $8 0.16%
*
Annualized.
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.16% [8]
Net Assets $ 77,915,095,731
Holdings Count | Holding 166
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $77,915,095,731
Total number of portfolio holdings 166
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 71.6%
8-30 0.6%
31-60 3.8%
61-90 2.7%
91-180 3.2%
181+ 18.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000250407 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Government & Agency Portfolio
Class Name Premier Class
Trading Symbol AGIXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Government & Agency Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Government & Agency Portfolio
(Premier Class)		 $6 0.12%
*
Annualized.
Expenses Paid, Amount $ 6
Expense Ratio, Percent 0.12% [9]
Net Assets $ 77,915,095,731
Holdings Count | Holding 166
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $77,915,095,731
Total number of portfolio holdings 166
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 71.6%
8-30 0.6%
31-60 3.8%
61-90 2.7%
91-180 3.2%
181+ 18.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000503 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Obligations Portfolio
Class Name Institutional Class
Trading Symbol TSPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Obligations Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Obligations Portfolio
(Institutional Class)		 $9 0.18%
*
Annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.18% [10]
Net Assets $ 1,310,344,209
Holdings Count | Holding 34
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $1,310,344,209
Total number of portfolio holdings 34
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 7.4%
8-30 30.7%
31-60 38.0%
61-90 9.3%
91-180 2.6%
181+ 12.0%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000505 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Obligations Portfolio
Class Name Private Investment Class
Trading Symbol TXPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Obligations Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Obligations Portfolio
(Private Investment Class)		 $22 0.43%
*
Annualized.
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.43% [11]
Net Assets $ 1,310,344,209
Holdings Count | Holding 34
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $1,310,344,209
Total number of portfolio holdings 34
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 7.4%
8-30 30.7%
31-60 38.0%
61-90 9.3%
91-180 2.6%
181+ 12.0%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000504 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Obligations Portfolio
Class Name Personal Investment Class
Trading Symbol TSSXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Obligations Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Obligations Portfolio
(Personal Investment Class)		 $37 0.73%
*
Annualized.
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.73% [12]
Net Assets $ 1,310,344,209
Holdings Count | Holding 34
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $1,310,344,209
Total number of portfolio holdings 34
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 7.4%
8-30 30.7%
31-60 38.0%
61-90 9.3%
91-180 2.6%
181+ 12.0%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000502 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Obligations Portfolio
Class Name Cash Management Class
Trading Symbol TSMXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Obligations Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Obligations Portfolio
(Cash Management Class)		 $13 0.26%
*
Annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.26% [13]
Net Assets $ 1,310,344,209
Holdings Count | Holding 34
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $1,310,344,209
Total number of portfolio holdings 34
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 7.4%
8-30 30.7%
31-60 38.0%
61-90 9.3%
91-180 2.6%
181+ 12.0%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000506 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Obligations Portfolio
Class Name Reserve Class
Trading Symbol TSVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Obligations Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Obligations Portfolio
(Reserve Class)		 $53 1.05%
*
Annualized.
Expenses Paid, Amount $ 53
Expense Ratio, Percent 1.05% [14]
Net Assets $ 1,310,344,209
Holdings Count | Holding 34
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $1,310,344,209
Total number of portfolio holdings 34
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 7.4%
8-30 30.7%
31-60 38.0%
61-90 9.3%
91-180 2.6%
181+ 12.0%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000507 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Obligations Portfolio
Class Name Resource Class
Trading Symbol TSRXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Obligations Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Obligations Portfolio
(Resource Class)		 $17 0.34%
*
Annualized.
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.34% [15]
Net Assets $ 1,310,344,209
Holdings Count | Holding 34
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $1,310,344,209
Total number of portfolio holdings 34
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 7.4%
8-30 30.7%
31-60 38.0%
61-90 9.3%
91-180 2.6%
181+ 12.0%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000029704 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Obligations Portfolio
Class Name Corporate Class
Trading Symbol TACXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Obligations Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Obligations Portfolio
(Corporate Class)		 $11 0.21%
*
Annualized.
Expenses Paid, Amount $ 11
Expense Ratio, Percent 0.21% [16]
Net Assets $ 1,310,344,209
Holdings Count | Holding 34
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $1,310,344,209
Total number of portfolio holdings 34
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 7.4%
8-30 30.7%
31-60 38.0%
61-90 9.3%
91-180 2.6%
181+ 12.0%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000524 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Portfolio
Class Name Institutional Class
Trading Symbol TRPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Portfolio
(Institutional Class)		 $9 0.18%
*
Annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.18% [17]
Net Assets $ 41,662,682,980
Holdings Count | Holding 62
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $41,662,682,980
Total number of portfolio holdings 62
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 64.0%
8-30 6.6%
31-60 3.4%
61-90 0.8%
91-180 4.3%
181+ 20.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000526 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Portfolio
Class Name Private Investment Class
Trading Symbol TPFXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Portfolio
(Private Investment Class)		 $24 0.48%
*
Annualized.
Expenses Paid, Amount $ 24
Expense Ratio, Percent 0.48% [18]
Net Assets $ 41,662,682,980
Holdings Count | Holding 62
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $41,662,682,980
Total number of portfolio holdings 62
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 64.0%
8-30 6.6%
31-60 3.4%
61-90 0.8%
91-180 4.3%
181+ 20.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000525 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Portfolio
Class Name Personal Investment Class
Trading Symbol TRSXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Portfolio
(Personal Investment Class)		 $37 0.73%
*
Annualized.
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.73% [19]
Net Assets $ 41,662,682,980
Holdings Count | Holding 62
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $41,662,682,980
Total number of portfolio holdings 62
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 64.0%
8-30 6.6%
31-60 3.4%
61-90 0.8%
91-180 4.3%
181+ 20.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000523 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Portfolio
Class Name Cash Management Class
Trading Symbol TRMXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Portfolio
(Cash Management Class)		 $13 0.26%
*
Annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.26% [20]
Net Assets $ 41,662,682,980
Holdings Count | Holding 62
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $41,662,682,980
Total number of portfolio holdings 62
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 64.0%
8-30 6.6%
31-60 3.4%
61-90 0.8%
91-180 4.3%
181+ 20.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000527 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Portfolio
Class Name Reserve Class
Trading Symbol TREXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Portfolio
(Reserve Class)		 $53 1.05%
*
Annualized.
Expenses Paid, Amount $ 53
Expense Ratio, Percent 1.05% [21]
Net Assets $ 41,662,682,980
Holdings Count | Holding 62
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $41,662,682,980
Total number of portfolio holdings 62
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 64.0%
8-30 6.6%
31-60 3.4%
61-90 0.8%
91-180 4.3%
181+ 20.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000528 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Portfolio
Class Name Resource Class
Trading Symbol TRRXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Portfolio
(Resource Class)		 $17 0.34%
*
Annualized.
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.34% [22]
Net Assets $ 41,662,682,980
Holdings Count | Holding 62
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $41,662,682,980
Total number of portfolio holdings 62
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 64.0%
8-30 6.6%
31-60 3.4%
61-90 0.8%
91-180 4.3%
181+ 20.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000029707 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Portfolio
Class Name Corporate Class
Trading Symbol TYCXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Portfolio
(Corporate Class)		 $11 0.21%
*
Annualized.
Expenses Paid, Amount $ 11
Expense Ratio, Percent 0.21% [23]
Net Assets $ 41,662,682,980
Holdings Count | Holding 62
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $41,662,682,980
Total number of portfolio holdings 62
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 64.0%
8-30 6.6%
31-60 3.4%
61-90 0.8%
91-180 4.3%
181+ 20.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000224185 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Treasury Portfolio
Class Name CAVU Securities Class
Trading Symbol CVTXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Treasury Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Treasury Portfolio
(CAVU Securities Class)		 $9 0.18%
*
Annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.18% [24]
Net Assets $ 41,662,682,980
Holdings Count | Holding 62
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $41,662,682,980
Total number of portfolio holdings 62
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 64.0%
8-30 6.6%
31-60 3.4%
61-90 0.8%
91-180 4.3%
181+ 20.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
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