v3.26.3
Annual Fund Operating Expenses - American Funds U.S. Small & Mid Cap Equity Fund
Oct. 30, 2026
Prospectus [Line Items]  
Fee Waiver or Reimbursement over Assets, Date of Termination Nov. 01, 2027
Class A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.30%
Other Expenses (as a percentage of Assets): 0.22% [1]
Expenses (as a percentage of Assets) 0.97%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.91%
Class 529-A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.30%
Other Expenses (as a percentage of Assets): 0.27% [1]
Expenses (as a percentage of Assets) 1.02%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.96%
Class C  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.22% [1]
Expenses (as a percentage of Assets) 1.67%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 1.61%
Class 529-C  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.27% [1]
Expenses (as a percentage of Assets) 1.72%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 1.66%
Class 529-E  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.50%
Other Expenses (as a percentage of Assets): 0.22% [1]
Expenses (as a percentage of Assets) 1.17%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 1.11%
Class F-3  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.12% [1]
Expenses (as a percentage of Assets) 0.57%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.51%
Class F-2  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.22% [1]
Expenses (as a percentage of Assets) 0.67%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.61%
Class F-1  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.25% [1]
Expenses (as a percentage of Assets) 0.95%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.89%
Class 529-F-3  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.17% [1]
Expenses (as a percentage of Assets) 0.62%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.56%
Class 529-F-2  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.23% [1]
Expenses (as a percentage of Assets) 0.68%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.62%
Class R-5E  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.27% [1]
Expenses (as a percentage of Assets) 0.72%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.66%
Class R-5  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.17% [1]
Expenses (as a percentage of Assets) 0.62%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.56%
Class R-4  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.22% [1]
Expenses (as a percentage of Assets) 0.92%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.86%
Class R-3  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.50%
Other Expenses (as a percentage of Assets): 0.27% [1]
Expenses (as a percentage of Assets) 1.22%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 1.16%
Class R-2E  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.60%
Other Expenses (as a percentage of Assets): 0.32% [1]
Expenses (as a percentage of Assets) 1.37%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 1.31%
Class R-2  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.75%
Other Expenses (as a percentage of Assets): 0.47% [1]
Expenses (as a percentage of Assets) 1.67%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 1.61%
Class R-1  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.22% [1]
Expenses (as a percentage of Assets) 1.67%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 1.61%
Class R-6  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.12% [1]
Expenses (as a percentage of Assets) 0.57%
Fee Waiver or Reimbursement (0.06%) [2]
Net Expenses (as a percentage of Assets) 0.51%
[1] Restated to reflect current fees.
[2] The investment adviser is currently reimbursing a portion of the other expenses. This reimbursement will be in effect through at least November 1, 2027. The adviser may elect at its discretion to extend, modify or terminate the reimbursement at that time.