XML 11 R3.htm IDEA: XBRL DOCUMENT v3.20.4
Label Element Value
Prospectus [Line Items] rr_ProspectusLineItems  
Document Type dei_DocumentType 497
Document Period End Date dei_DocumentPeriodEndDate Dec. 31, 2019
Entity Registrant Name dei_EntityRegistrantName Putnam Funds Trust
Entity Central Index Key dei_EntityCentralIndexKey 0001005942
Entity Inv Company Type dei_EntityInvCompanyType N-1A
Amendment Flag dei_AmendmentFlag false
Putnam Short Duration Bond Fund | Class A  
Prospectus [Line Items] rr_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.25%
Maximum Deferred Sales Charge (as a percentage) rr_MaximumDeferredSalesChargeOverOther 1.00% [1],[2]
[1] Applies only to certain redemptions of shares bought with no initial sales charge.
[2] For purchases on or after January 1, 2021, this percentage will be 0.75%.