State Street SPDR Portfolio Aggregate Bond Index ETF Investment Objectives and Goals - State Street SPDR Portfolio Aggregate Bond Index ETF |
Jun. 30, 2026 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:18pt;font-weight:bold;">State Street</span><span style="color:#000000;font-family:Arial;font-size:11.5pt;font-weight:bold;position:relative;top:-5pt;">®</span><span style="color:#000000;font-family:Arial;font-size:18pt;font-weight:bold;"> SPDR</span><span style="color:#000000;font-family:Arial;font-size:11.5pt;font-weight:bold;position:relative;top:-5pt;">®</span><span style="color:#000000;font-family:Arial;font-size:18pt;font-weight:bold;"> Portfolio Aggregate Bond Index ETF</span><span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">(formerly, State Street</span><span style="color:#000000;font-family:Arial;font-size:6.5pt;font-weight:bold;position:relative;top:-2.75pt;">®</span><span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"> SPDR</span><span style="color:#000000;font-family:Arial;font-size:6.5pt;font-weight:bold;position:relative;top:-2.75pt;">®</span><span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"> Portfolio Aggregate Bond ETF)</span> |
| Objective [Heading] | <span style="color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;margin-left:10.5pt;text-transform:uppercase;">Investment Objective</span> |
| Objective, Primary [Text Block] | The State Street SPDR Portfolio Aggregate Bond Index ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the U.S. dollar denominated investment grade bond market. |