v3.25.2
Cover - shares
 9 Months Ended
Jun. 30, 2025
Jul. 22, 2025
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-33977  
Entity Registrant Name VISA INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 26-0267673  
Entity Address, Address Line One P.O. Box 8999  
Entity Address, City or Town San Francisco,  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94128-8999  
City Area Code 650  
Local Phone Number 432-3200  
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 Central Index Key 0001403161  
Current Fiscal Year End Date --09-30  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q3  
Amendment Flag false  
Class A Common Stock    
Document Information [Line Items]    
Title of 12(b) Security Class A Common Stock, par value $0.0001 per share  
Trading Symbol V  
Security Exchange Name NYSE  
Entity Common Stock, Shares Outstanding   1,698,682,527
2026 Notes    
Document Information [Line Items]    
Title of 12(b) Security 1.500% Senior Notes due 2026  
Trading Symbol V26  
Security Exchange Name NYSE  
2028 Notes    
Document Information [Line Items]    
Title of 12(b) Security 2.250% Senior Notes due 2028  
Trading Symbol V28  
Security Exchange Name NYSE  
2029 Notes    
Document Information [Line Items]    
Title of 12(b) Security 2.000% Senior Notes due 2029  
Trading Symbol V29  
Security Exchange Name NYSE  
2033 Notes    
Document Information [Line Items]    
Title of 12(b) Security 3.125% Senior Notes due 2033  
Trading Symbol V33  
Security Exchange Name NYSE  
2034 Notes    
Document Information [Line Items]    
Title of 12(b) Security 2.375% Senior Notes due 2034  
Trading Symbol V34  
Security Exchange Name NYSE  
2037 Notes    
Document Information [Line Items]    
Title of 12(b) Security 3.500% Senior Notes due 2037  
Trading Symbol V37  
Security Exchange Name NYSE  
2044 Notes    
Document Information [Line Items]    
Title of 12(b) Security 3.875% Senior Notes due 2044  
Trading Symbol V44  
Security Exchange Name NYSE  
Class B-1 common stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   4,835,384
Class B-2 common stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   120,338,948
Class C common stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   8,936,701