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Settlement and Other Risk Management - Narrative (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
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Settlement and Other Risk Management [Abstract] |  |
Travelers cheques outstanding, notional value | $ 337 | $ 340
Travelers cheques covered by collateral arrangements | $ 272 | $ 272

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- Definition Settlement and Travelers Cheque Risk Management [Abstract] + References No definition available. + Details
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Namespace Prefix: | ma_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Travelers Cheques Covered by Collateral Arrangements + References No definition available. + Details
Name: | ma_TravelersChequesCoveredByCollateralArrangements
Namespace Prefix: | ma_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Represents the notional value of outstanding Travelers cheques issued by others, for which the company has guaranteed the payment in the event of issuer default. + References No definition available. + Details
Name: | ma_TravelersChequesOutstandingNotionalValue
Namespace Prefix: | ma_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant