EQUITY INDEX FUND S000001157 [Member] GROWTH EQUITY FUND S000001159 [Member] SMALL CAP EQUITY FUND S000001160 [Member] Emerging Markets Equity Fund S000041653 [Member] International Equity Index Fund S000049460 [Member] Value Equity Index Fund S000077389 [Member] Growth Equity Index Fund S000077390 [Member] Investor C000003092 [Member] Institutional C000237792 [Member] C000003104 [Member] C000003100 [Member] C000129314 [Member] C000237794 [Member] GS6 C000003105 [Member] C000003101 [Member] C000003093 [Member] GS8 C000003106 [Member] C000003103 [Member] C000003094 [Member] C000003102 [Member] C000237793 [Member] C000003091 [Member] C000237791 [Member] C000003099 [Member] C000156358 [Member] C000129313 [Member] C000236040 [Member]