v3.26.1
Voya Intermediate Bond Fund Average Annual Total Returns
 12 Months Ended 60 Months Ended 120 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Class A        
Prospectus [Line Items]        
Average Annual Return, Percent   4.51% (0.74%) 2.06%
Performance Inception Date Dec. 15, 1998      
Class A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent   2.74% (2.13%) 0.64%
Class A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent   2.64% (1.16%) 0.96%
Class A | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   7.30% (0.36%) 2.01%
Class C        
Prospectus [Line Items]        
Average Annual Return, Percent   5.51% (0.99%) 1.69%
Performance Inception Date Dec. 15, 1998      
Class C | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   7.30% (0.36%) 2.01%
Class I        
Prospectus [Line Items]        
Average Annual Return, Percent   7.56% 0.11% 2.66%
Performance Inception Date Jan. 08, 2002      
Class I | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   7.30% (0.36%) 2.01%
Class R        
Prospectus [Line Items]        
Average Annual Return, Percent   6.91% (0.50%) 2.05%
Performance Inception Date Mar. 16, 2004      
Class R | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   7.30% (0.36%) 2.01%
Class R6        
Prospectus [Line Items]        
Average Annual Return, Percent   7.62% 0.16% 2.71%
Performance Inception Date May 31, 2013      
Class R6 | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   7.30% (0.36%) 2.01%
Class W        
Prospectus [Line Items]        
Average Annual Return, Percent   7.45% (0.01%) 2.57%
Performance Inception Date Dec. 17, 2007      
Class W | Bloomberg U.S. Aggregate Bond Index[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent [1]   7.30% (0.36%) 2.01%
[1] The index returns do not reflect deductions for fees, expenses, or taxes.