S000001243 [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| LARGE CAP CORE FUND | LARGE CAP CORE FUND | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 21.75% | 26.34% | 24.22% | (15.52%) | 33.03% | 11.89% | 25.64% | (5.89%) | 20.31% | 11.23% |