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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Millions, unless otherwise specified | Total USD ($) | Additional Paid-in Capital USD ($) | Accumulated Income USD ($) | Accumulated Other Comprehensive Income (Loss) USD ($) | Class A common stock Common Stock | Class B common stock Common Stock | Class C common stock Common Stock
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Sep. 30, 2014 |  | $ 27,413 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |  | $ 18,299 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ 9,131 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ (17)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |  |  |
Beginning Balance (in shares) at Sep. 30, 2014 |  |  |  |  |  |  | 495 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 245 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 22 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassCMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Net income |  | 1,569 us-gaap_NetIncomeLoss | [1],[2] |  | 1,569 us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |  |  |  |
Other comprehensive income, net of tax |  | 27 us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  | 27 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |  |  |
Comprehensive income |  | 1,596 us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest |  |  |  |  |  |  |
Issuance of restricted stock awards | [3] | 0 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross |  |  |  |  |  |  |
Conversion of class C common stock upon sale into public market (in shares) |  |  |  |  |  |  | 2 us-gaap_ConversionOfStockSharesConverted1 / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  | (2)us-gaap_ConversionOfStockSharesConverted1 / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassCMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Share-based compensation |  | 45 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |  | 45 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |  |  |
Excess tax benefit for share-based compensation |  | 58 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation |  | 58 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |  |  |
Cash proceeds from exercise of stock options (in shares) |  |  |  |  |  |  | 1 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |
Cash proceeds from exercise of stock options |  | 30 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised |  | 30 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |  |  |
Restricted stock and performance-based shares settled in cash for taxes | [3] | (100)v_RestrictedStockInstrumentSettledInCashForTaxes |  | (100)v_RestrictedStockInstrumentSettledInCashForTaxes / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |  |  |
Cash dividends declared and paid, at a quarterly amount of $0.48 per as-converted share (Note 7) |  | (297)us-gaap_DividendsCash |  |  | (297)us-gaap_DividendsCash / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |  |  |  |
Repurchase of class A common stock (Note 9) (in shares) |  | (3)us-gaap_StockRepurchasedAndRetiredDuringPeriodShares | [4] |  |  |  | (3)us-gaap_StockRepurchasedAndRetiredDuringPeriodShares / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |
Repurchase of class A common stock (Note 7) |  | (803)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue |  | (132)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (671)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |  |  |  |
Ending Balance at Dec. 31, 2014 |  | $ 27,942 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |  | $ 18,200 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ 9,732 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ 10 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |  |  |
Ending Balance (in shares) at Dec. 31, 2014 |  |  |  |  |  |  | 495 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 245 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 20 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassCMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
[1] | Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated based on unrounded numbers.
[2] | Net income is allocated based on proportional ownership on an as-converted basis. The weighted-average number of shares of as-converted class B common stock used in the income allocation was 101 million and 103 million for the three months ended December 31, 2014 and 2013, respectively.
[3] | Increase in class A common stock is less than 1 million shares.
[4] | All shares repurchased in the open market have been retired and constitute authorized but unissued shares.

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