v3.25.4
S000024275 [Member] Annual Fund Operating Expenses - Putnam Core Bond Fund
Oct. 31, 2025
Class R  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.39%
Distribution and Service (12b-1) Fees 0.50%
Other Expenses (as a percentage of Assets): 0.00%
Expenses (as a percentage of Assets) 0.89%
Class R6  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.39%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.00%
Expenses (as a percentage of Assets) 0.39%
Class Y  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.39%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.00%
Expenses (as a percentage of Assets) 0.39%
Class A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.39%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.00%
Expenses (as a percentage of Assets) 0.64%
Class C  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.39%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.00%
Expenses (as a percentage of Assets) 1.39%