State Street Total Return VIS Fund Investment Objectives and Goals - Class 1 [Member] - State Street Total Return VIS Fund |
Dec. 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | State Street Total ReturnV.I.S. Fund |
| Objective [Heading] | <span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">Investment Objective</span> |
| Objective, Primary [Text Block] | The investment objective of the State Street Total Return V.I.S. Fund (the “Fund”) is to seek the highest total return, composed of current income and capital appreciation, as is consistent with prudent investment risk. |