S000019579 [Member] Expense Example - World Selection Index Fund |
Mar. 31, 2026
USD ($)
|
|---|---|
| Class K | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 25 |
| Expense Example, with Redemption, 3 Years | 77 |
| Expense Example, with Redemption, 5 Years | 135 |
| Expense Example, with Redemption, 10 Years | 306 |
| Class I | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 30 |
| Expense Example, with Redemption, 3 Years | 93 |
| Expense Example, with Redemption, 5 Years | 163 |
| Expense Example, with Redemption, 10 Years | $ 368 |