Document and Entity Information	9 Months Ended
	Jun. 30, 2014	Jul. 21, 2014 Class A	Jul. 21, 2014 Class B	Jul. 21, 2014 Class C
Entity Registrant Name	VISA INC.
Entity Central Index Key	0001403161
Current Fiscal Year End Date	--09-30
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		494,786,783	245,513,385	25,090,128