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Revenues - Unbilled Receivables (Detail) - Accounts Receivable - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
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MA |  |
Disaggregation of Revenue [Line Items] |  |
Unbilled Receivables | $ 139 | $ 119
MIS |  |
Disaggregation of Revenue [Line Items] |  |
Unbilled Receivables | $ 466 | $ 415

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