Cover Page
| Cover Page | Oct. 23, 2020 | Jul. 28, 2020 |
| Cover [Abstract] | ||
| Document Type | 8-K | |
| Document Period End Date | Oct. 23, 2020 | |
| Entity Registrant Name | VISA INC. | |
| Entity Incorporation, State or Country Code | DE | |
| Entity File Number | 001-33977 | |
| 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 | |
| Written Communications | false | |
| Soliciting Material | false | |
| Pre-commencement Tender Offer | false | |
| Pre-commencement Issuer Tender Offer | false | |
| Title of 12(b) Security | Class A common stock, par value $0.0001 per share | |
| Trading Symbol | V | |
| Security Exchange Name | NYSE | |
| Entity Emerging Growth Company | false | |
| Entity Central Index Key | 0001403161 | |
| Amendment Flag | false |