Cover Page
| Cover Page | Apr. 30, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Apr. 30, 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 |