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Investments - Carrying Value of Measurement Alternative Investments (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Investments, Debt and Equity Securities [Abstract] |  |
Alternative Investment, Initial Cost Basis | $ 719 |
Alternative Investment, Upward Price Adjustment, Cumulative Amount | 625 |
Alternative Investment, Downward Price Adjustment Including Impairment, Cumulative Amount | (189) |
Measurement alternative | $ 1,155 | $ 1,140

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- Definition Alternative Investment, Carrying Value + References No definition available. + Details
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- Definition Alternative Investment, Downward Price Adjustment Including Impairment, Cumulative Amount + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Alternative Investment, Initial Cost Basis + References No definition available. + Details
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- Definition Alternative Investment, Upward Price Adjustment, Cumulative Amount + References No definition available. + Details
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Namespace Prefix: | ma_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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