CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Operating Revenues
Service revenues	$ 1,538v_ServiceFees	$ 1,419v_ServiceFees
Data processing revenues	1,383v_DataProcessingFees	1,264v_DataProcessingFees
International transaction revenues	970v_InternationalTransactionRevenues	891v_InternationalTransactionRevenues
Other revenues	204us-gaap_OtherSalesRevenueNet	180us-gaap_OtherSalesRevenueNet
Client incentives	(713)v_ClientIncentives	(599)v_ClientIncentives
Total operating revenues	3,382us-gaap_Revenues	3,155us-gaap_Revenues
Operating Expenses
Personnel	509us-gaap_LaborAndRelatedExpense	470us-gaap_LaborAndRelatedExpense
Marketing	205us-gaap_MarketingAndAdvertisingExpense	186us-gaap_MarketingAndAdvertisingExpense
Network and processing	114	132
Professional fees	70us-gaap_ProfessionalFees	75us-gaap_ProfessionalFees
Depreciation and amortization	120us-gaap_DepreciationAndAmortization	107us-gaap_DepreciationAndAmortization
General and administrative	126us-gaap_GeneralAndAdministrativeExpense	108us-gaap_GeneralAndAdministrativeExpense
Total operating expenses	1,144us-gaap_CostsAndExpenses	1,078us-gaap_CostsAndExpenses
Operating income	2,238us-gaap_OperatingIncomeLoss	2,077us-gaap_OperatingIncomeLoss
Non-operating income	24us-gaap_NonoperatingIncomeExpense	6us-gaap_NonoperatingIncomeExpense
Income before income taxes	2,262	2,083
Income tax provision (Note 10)	693us-gaap_IncomeTaxExpenseBenefit	676us-gaap_IncomeTaxExpenseBenefit
Net income	$ 1,569us-gaap_ProfitLoss	$ 1,407us-gaap_ProfitLoss
Class A common stock
Earnings Per Share
Basic earnings per share (Note 8) (in dollars per share)	$ 2.54	$ 2.21
Basic weighted-average shares outstanding (Note 8) (in shares)	494	505
Diluted earnings per share (Note 8) (in dollars per share)	$ 2.53	$ 2.20
Diluted weighted-average shares outstanding (Note 8) (in shares)	619	639
Class B common stock
Earnings Per Share
Basic earnings per share (Note 8) (in dollars per share)	$ 1.05	$ 0.93
Basic weighted-average shares outstanding (Note 8) (in shares)	245	245
Diluted earnings per share (Note 8) (in dollars per share)	$ 1.04	$ 0.93
Diluted weighted-average shares outstanding (Note 8) (in shares)	245	245
Class C common stock
Earnings Per Share
Basic earnings per share (Note 8) (in dollars per share)	$ 2.54	$ 2.21
Basic weighted-average shares outstanding (Note 8) (in shares)	22	27
Diluted earnings per share (Note 8) (in dollars per share)	$ 2.53	$ 2.20
Diluted weighted-average shares outstanding (Note 8) (in shares)	22	27

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Data processing revenues consist of fees charged to customers for providing transaction processing and other payment services, including processing services provided under our bilateral services agreement with Visa Europe. Data processing revenues are based on information we accumulate from VisaNet, our secure, centralized, global processing platform, which provides transaction processing services linking issuers and acquirers. Data processing revenues are recognized as revenues in the same period the related transaction occurs or services are rendered.

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International transaction revenues are assessed to customers on transactions where an issuer is domiciled in one country and a merchant's acquirer is located in another country. International transaction revenues are generally driven by cross-border payments volume, which includes single currency transactions, and currency conversion activities for transactions involving more than one currency. International transaction revenues are influenced in large part by levels of travel and the extent to which Visa-branded products are utilized for travel purposes. These revenues are recognized in the same period the related transactions occur or services are performed.

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