v3.25.2
Voya Investment Grade Credit Fund Average Annual Total Returns - Class A I R6 W Shares [Member]
 12 Months Ended 60 Months Ended 120 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Class A        
Prospectus [Line Items]        
Average Annual Return, Percent   0.15% (0.19%) 2.24%
Performance Inception Date Aug. 03, 2016      
Class A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent   (1.61%) (1.88%) 0.45%
Class A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent   0.08% (0.78%) 0.97%
Class A | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   1.25% (0.33%) 1.35%
Class A | Bloomberg U.S. Corporate Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   2.13% 0.30% 2.43%
Class I        
Prospectus [Line Items]        
Average Annual Return, Percent   3.01% 0.60% 2.76%
Performance Inception Date Aug. 03, 2016      
Class I | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   1.25% (0.33%) 1.35%
Class I | Bloomberg U.S. Corporate Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   2.13% 0.30% 2.43%
Class R6        
Prospectus [Line Items]        
Average Annual Return, Percent   2.92% 0.60% 2.77%
Performance Inception Date Aug. 03, 2016      
Class R6 | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   1.25% (0.33%) 1.35%
Class R6 | Bloomberg U.S. Corporate Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   2.13% 0.30% 2.43%
Class W        
Prospectus [Line Items]        
Average Annual Return, Percent   3.01% 0.56% 2.72%
Performance Inception Date Aug. 01, 2017      
Class W | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   1.25% (0.33%) 1.35%
Class W | Bloomberg U.S. Corporate Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   2.13% 0.30% 2.43%
[1] The index returns do not reflect deductions for fees, expenses, or taxes.