Conservative Allocation Portfolio 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 |
|
| Portfolio [Member] | Conservative Allocation Portfolio | Conservative Allocation Portfolio | ||||||||
| Prospectus [Line Items] | ||||||||
| Annual Return [Percent] | 12.73% | 7.49% | 12.51% | (14.90%) | 5.99% | 11.73% | 15.83% | (2.98%) |