State Street SP 500 Index VIS Fund Expense Example - State Street SP 500 Index VIS Fund - Class 1 |
Dec. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 32 |
| Expense Example, with Redemption, 3 Years | 100 |
| Expense Example, with Redemption, 5 Years | 174 |
| Expense Example, with Redemption, 10 Years | $ 393 |