XML 11 R1.htm IDEA: XBRL DOCUMENT v3.23.1
Document and Entity Information - shares
6 Months Ended
Mar. 31, 2023
Apr. 24, 2023
Document And Entity Information [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2023  
Document Transition Report false  
Entity File Number 001-09318  
Entity Registrant Name FRANKLIN RESOURCES, INC.  
Entity Central Index Key 0000038777  
Current Fiscal Year End Date --09-30  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 13-2670991  
Entity Address, Address Line One One Franklin Parkway  
Entity Address, City or Town San Mateo  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94403  
City Area Code 650  
Local Phone Number 312-2000  
Title of 12(b) Security Common Stock, par value $0.10 per share  
Trading Symbol BEN  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   500,863,407