Multi-Asset Diversified Income Index Fund 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 |
|
| Multi-Asset Diversified Income Index Fund | Multi-Asset Diversified Income Index Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 3.94% | 9.97% | 11.43% | (4.20%) | 16.21% | (14.35%) | 18.38% | (5.75%) | 5.46% | 11.18% |