v3.26.1
DWS S&P 500 Index Fund Annual Fund Operating Expenses - DWS S&P 500 Index Fund
Apr. 28, 2026
Class A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.05%
Distribution and Service (12b-1) Fees 0.24%
Other Expenses (as a percentage of Assets): 0.25%
Expenses (as a percentage of Assets) 0.54% [1]
Class C  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.05%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.21%
Expenses (as a percentage of Assets) 1.26% [1]
Class R6  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.05%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.17%
Expenses (as a percentage of Assets) 0.22% [1]
Class S  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.05%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.24%
Expenses (as a percentage of Assets) 0.29% [1]
[1] The table and Example below reflect the expenses of both the fund and the Portfolio.