Investment Objectives and Goals - State Street SP 500 Index Fund |
Jun. 30, 2026 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | State Street® S&P 500® Index Fund - Institutional Shares |
| Objective [Heading] | <span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">Investment Objective</span> |
| Objective, Primary [Text Block] | The State Street SPDR Portfolio S&P 500 ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of large capitalization exchange traded U.S. equity securities. |