Investor A, Institutional [Member] Average Annual Total Returns - Investor A, Institutional |
12 Months Ended | 60 Months Ended | 120 Months Ended | ||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
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| Bloomberg U.S. Aggregate Bond Index (Reflects no deduction for fees, expenses or taxes) | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 7.30% | (0.36%) | 2.01% | ||
| LifePath Index Retirement Fund Custom Benchmark (Reflects no deduction for fees, expenses or taxes except as noted) | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | [1] | 12.55% | 4.11% | 6.08% | |
| Russell 1000® Index (Reflects no deduction for fees, expenses or taxes) | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 17.37% | 13.59% | 14.59% | ||
| Investor A | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 12.10% | 3.71% | 5.69% | ||
| Investor A | After Taxes on Distributions | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 10.70% | 2.72% | 4.76% | ||
| Investor A | After Taxes on Distributions and Sales | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 7.32% | 2.49% | 4.15% | ||
| Institutional Shares | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 12.41% | 3.97% | 5.96% | ||
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