S000001243 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| S&P 500® Index (reflects no deduction for fees, expenses, or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 17.88% | 14.42% | 14.82% |
| LARGE CAP CORE FUND | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 21.75% | 16.52% | 14.29% |
| LARGE CAP CORE FUND | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 19.41% | 13.96% | 12.64% |
| LARGE CAP CORE FUND | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 14.49% | 12.64% | 11.47% |