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Shareholder Report
 6 Months Ended
Jun. 30, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name TIFF Investment Program
Entity Central Index Key 0000916622
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
C000017543  
Shareholder Report [Line Items]  
Fund Name TIFF Multi-Asset Fund
No Trading Symbol [Flag] true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about  TIFF Multi-Asset Fund (the Fund) for the period of January 1, 2025 to June 30, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund at www.tipfunds.org. You can also request this information by contacting us at 800-984-0084.
Additional Information Phone Number 800-984-0084
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.tipfunds.org</span>
Expenses [Text Block]

What were the Fund costs for last year?

(based on a hypothetical $10,000 investment) 

Fund Name
Cost of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
TIFF Multi-Asset Fund
$61
1.17%Footnote Reference*
FootnoteDescription
Footnote*
Annualized
Expenses Paid, Amount $ 61
Expense Ratio, Percent 1.17% [1]
AssetsNet $ 1,413,154,405
Holdings Count | Holding 1,420
InvestmentCompanyPortfolioTurnover 136.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics (as of June 30, 2025)

  • Total Net Assets$1,413,154,405
  • # of Portfolio Holdings1,420
  • Portfolio Turnover Rate136%
Holdings [Text Block]

 Country Allocation (% of Net Assets)

Group By Country Chart
Value
Value
United States
87.5%
Canada
5.9%
South Korea
1.7%
France
1.4%
United Kingdom
1.2%
South Africa
0.8%
Taiwan
0.7%
Denmark
0.7%
Germany
0.5%
Others
5.1%
Largest Holdings [Text Block]

Top Ten Holdings (% of Net Assets)

Group By Industry Chart
Value
Value
FIXED INC CLEARING CORP.REPO, 1.360%, due 07/01/25
8.1%
Financial Select Sector SPDR Fund
4.2%
NVIDIA Corp.
3.8%
Helikon Long Short Equity Fund ICAV
2.4%
Microsoft Corp.
2.3%
Voloridge Trading Aggressive Fund
2.3%
Apple, Inc.
2.2%
Meta Platforms, Inc., A
2.2%
Amazon.com, Inc.
2.1%
Vanguard Financials ETF
1.9%
[1] Annualized