v3.26.1
Shareholder Report
 6 Months Ended
Jun. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Voya Government Money Market Portfolio
Entity Central Index Key 0000002663
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2026
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
C000023718  
Shareholder Report [Line Items]  
Fund Name Voya Government Money Market Portfolio
Class Name Class I
Trading Symbol IVMXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Voya Government Money Market Portfolio for the period of January 1, 2026 to June 30, 2026.
Additional Information Phone Number 1-800-992-0180
Expenses [Text Block]

What were the Fund’s costs for the last six months?  (based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of $10K investment
Costs paid as % of $10K investment (Annualized)
Class I
$20
0.41%
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.41%
AssetsNet $ 739,449,291
Holdings Count | Holding 17
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Total Net Assets$739,449,291
  • # of Portfolio Holdings17
Holdings [Text Block]

Investment Type Allocation

A graphical representation of Investments made.
Table Summary
Value
Value
Assets in Excess of Other Liabilities
0.5%
U.S. Treasury Repurchase Agreements
18.6%
U.S. Government Agency Debt
39.2%
U.S. Treasury Debt
41.7%