v3.26.1
Shareholder Report, Average Annual Return (Details) 74200166500_Putnam Core Equity Fund_Class R_TSR Annual {Class R}
12 Months Ended 60 Months Ended 120 Months Ended
Apr. 30, 2026
Apr. 30, 2026
Apr. 30, 2026
Class R      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Class R    
Average Annual Return, Percent 29.12% 12.43% 15.48%
Russell 3000 Index [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Russell 3000 Index    
Average Annual Return, Percent 31.01% 11.91% 14.75%