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U.S. and Europe Retrospective Responsibility Plan - Additional Details (Details) € in Millions, $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Dec. 27, 2019 USD ($) | Mar. 31, 2020 EUR (€) | Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($)
Retrospective Responsibility Plan [Abstract] |  |  |  |
Return of takedown payment to the litigation escrow account | $ | $ 467 |  | $ 467 | $ 0
VE covered loss, maximum amount of loss to allow adjustment of conversion rate during six-month period | € |  | € 20 |  |

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- Definition Deposits To Litigation Escrow Account + References No definition available. + Details
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- Definition Retrospective Responsibility Plan [Abstract] + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition VE Covered Loss, Protection from the Plan Relating to Liabilities where the Claim Relates to Inter-regional Multilateral Interchange Fee Rates + References No definition available. + Details
Name: | v_VECoveredLossMaximumAmountofLosstoAllowAdjustmentofConversionRateduringSixmonthPeriod
Namespace Prefix: | v_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration