v3.25.4
S000001586 [Member] Annual Fund Operating Expenses - U.S. Small Cap Equity Fund
Oct. 31, 2025
Prospectus [Line Items]  
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027
Class M  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70% [1]
Distribution and Service (12b-1) Fees 0.00% [1]
Other Expenses (as a percentage of Assets): 0.41% [1]
Expenses (as a percentage of Assets) 1.11% [1]
Fee Waiver or Reimbursement (0.14%) [1]
Net Expenses (as a percentage of Assets) 0.97% [1]
Class Y  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70% [1]
Distribution and Service (12b-1) Fees 0.00% [1]
Other Expenses (as a percentage of Assets): 0.21% [1]
Expenses (as a percentage of Assets) 0.91% [1]
Fee Waiver or Reimbursement 0.00% [1]
Net Expenses (as a percentage of Assets) 0.91% [1]
Class A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70% [1]
Distribution and Service (12b-1) Fees 0.25% [1]
Other Expenses (as a percentage of Assets): 0.41% [1]
Expenses (as a percentage of Assets) 1.36% [1]
Fee Waiver or Reimbursement 0.00% [1]
Net Expenses (as a percentage of Assets) 1.36% [1]
Class C  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70% [1]
Distribution and Service (12b-1) Fees 0.75% [1]
Other Expenses (as a percentage of Assets): 0.66% [1]
Expenses (as a percentage of Assets) 2.11% [1]
Fee Waiver or Reimbursement 0.00% [1]
Net Expenses (as a percentage of Assets) 2.11% [1]
Class S  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70% [1]
Distribution and Service (12b-1) Fees 0.00% [1]
Other Expenses (as a percentage of Assets): 0.41% [1]
Expenses (as a percentage of Assets) 1.11% [1]
Fee Waiver or Reimbursement (0.04%) [1]
Net Expenses (as a percentage of Assets) 1.07% [1]
Class R6  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70% [1]
Distribution and Service (12b-1) Fees 0.00% [1]
Other Expenses (as a percentage of Assets): 0.26% [1]
Expenses (as a percentage of Assets) 0.96% [1]
Fee Waiver or Reimbursement (0.02%) [1]
Net Expenses (as a percentage of Assets) 0.94% [1]
[1] Until February 28, 2027, Russell Investments Fund Services, LLC has contractually agreed to waive 0.14% of its transfer agency fees for Class M Shares, 0.04% of its transfer agency fees for Class S Shares and 0.02% of its transfer agency fees for Class R6 Shares. These waivers may not be terminated during the relevant period except with Board approval.