v3.26.1
Shareholder Report, Average Annual Return (Details)
12 Months Ended 58 Months Ended
May 31, 2026
May 31, 2026
Without Sales Load [Member] | C000222692    
Average Annual Return [Line Items]    
Average Annual Return, Percent 13.97% 4.99%
Without Sales Load [Member] | C000222693    
Average Annual Return [Line Items]    
Average Annual Return, Percent 14.14% 5.16%
Bloomberg U.S. Aggregate Bond Index    
Average Annual Return [Line Items]    
Average Annual Return, Percent 5.13% (0.13%)
Bloomberg U.S. Aggregate Bond Index    
Average Annual Return [Line Items]    
Average Annual Return, Percent 5.13% (0.13%)
S&P Target Date Retirement Income Index    
Average Annual Return [Line Items]    
Average Annual Return, Percent 12.59% 4.43%
S&P Target Date Retirement Income Index    
Average Annual Return [Line Items]    
Average Annual Return, Percent 12.59% 4.43%