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 |
|
| Elfun Trusts | Elfun Trusts | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.68% | 27.04% | 34.49% | (19.87%) | 24.28% | 25.07% | 35.57% | (3.39%) | 25.61% | 6.08% |