v3.26.3
Label Element Value
Class C | U.S. Investment-Grade Bonds [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 40.90%
Class C | U.S. Large Cap Equity [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 22.50%
Class C | Global High-Yield Bonds [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 14.00%
Class C | International Bonds [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 11.00%
Class C | International Equity [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 5.20%
Class C | Emerging Market Bonds [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 3.70%
Class C | Emerging Market Equity [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 1.80%
Class C | U.S. Small- and Mid-Cap Equity [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 1.00%