v3.26.1
DWS Health and Wellness Fund Expense Example, No Redemption - Class ACIS [Member] - DWS Health and Wellness Fund
Jun. 15, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 703
Expense Example, No Redemption, 3 Years 976
Expense Example, No Redemption, 5 Years 1,270
Expense Example, No Redemption, 10 Years 2,104
Class C  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 211
Expense Example, No Redemption, 3 Years 670
Expense Example, No Redemption, 5 Years 1,156
Expense Example, No Redemption, 10 Years 2,288
INST Class  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 106
Expense Example, No Redemption, 3 Years 342
Expense Example, No Redemption, 5 Years 596
Expense Example, No Redemption, 10 Years 1,324
Class S  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 109
Expense Example, No Redemption, 3 Years 340
Expense Example, No Redemption, 5 Years 590
Expense Example, No Redemption, 10 Years $ 1,306