Visa Europe (Details) - Visa Europe	Nov. 02, 2015 EUR (€) quarter shares	Nov. 02, 2015 $ / shares	Nov. 02, 2015 EUR (€)	Oct. 19, 2015 day $ / shares
Class of Stock [Line Items]
Share capital of Visa Europe acquired (percent)			100.00%
Total purchase price	€ 21,200,000,000
Up-front cash consideration	11,500,000,000
Consideration, preferred stock of the Company	€ 5,000,000,000
Number of fiscal quarters included in contingent consideration period | quarter	16
Contingent consideration			€ 4,000,000,000
Accrued interest on contingent consideration			700,000,000
Euro-dollar exchange rate				1.12750
Consecutive trading days used in calculation of average stock price and Euro-dollar exchange rate | day				30
Initial conversion rate of UK&I and Europe preferred stock into Class A equivalent preferred stock	13.952
Class A equivalent preferred stock
Class of Stock [Line Items]
Preferred stock, par value | $ / shares		$ 0.0001
U.K.&I. preferred stock
Class of Stock [Line Items]
Preferred stock, par value | $ / shares		0.0001
Shares issued at closing (shares) | shares	2,480,500
Value of shares issued at closing			2,200,000,000
Europe preferred stock
Class of Stock [Line Items]
Preferred stock, par value | $ / shares		$ 0.0001
Shares issued at closing (shares) | shares	3,157,000
Value of shares issued at closing			2,800,000,000
Class A common stock
Class of Stock [Line Items]
Average price of common stock (in USD per share) | $ / shares				$ 71.68
Loss Sharing Agreement
Class of Stock [Line Items]
Loss sharing agreement			€ 1,000,000,000
Conversion rate of U.K.&I. preferred stock	0