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Settlement and Other Risk Management - Estimated Settlement Exposure (Details) - Guarantee Obligations - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
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Risks Inherent in Servicing Assets and Servicing Liabilities |  |
Gross settlement exposure | $ 86,585 | $ 78,385
Risk mitigation arrangements applied to settlement exposure | (15,733) | (13,466)
Net settlement exposure | $ 70,852 | $ 64,919

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- Definition Collateral held for estimated settlement exposure from guarantees issued + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Estimated settlement exposure from guarantees issued + References No definition available. + Details
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Namespace Prefix: | ma_
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Balance Type: | credit
Period Type: | instant

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- Definition Net Uncollateralized estimated settlement exposure from guarantees issued + References No definition available. + Details
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Namespace Prefix: | ma_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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