v3.26.1
Shareholder Report, Line Graph (Details) 74200166500_Putnam Core Equity Fund_Class R6_TSR Annual {Class R6} - USD ($)
12 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2023
Apr. 30, 2022
Apr. 30, 2021
Apr. 30, 2020
Apr. 30, 2019
Apr. 30, 2018
Apr. 30, 2017
Apr. 30, 2016
Apr. 30, 2026
Class R6                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Class R6
Accumulated Value $ 34,401 $ 30,972 $ 24,608 $ 23,935 $ 24,146 $ 15,246 $ 15,436 $ 14,163 $ 12,258 $ 10,000 $ 44,666
Russell 3000 Index [Member]                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Russell 3000 Index
Accumulated Value $ 30,227 $ 27,133 $ 22,186 $ 21,857 $ 22,560 $ 14,948 $ 15,106 $ 13,406 $ 11,858 $ 10,000 $ 39,601