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Segment Information - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2025 USD ($) segment
Segment Reporting Information [Line Items]
Number of operating segments (segment) | segment	2
Number of reportable segments | segment	2
MA | Strategic and Operational Efficiency Restructuring Program | Minimum
Segment Reporting Information [Line Items]
Restructuring and related cost, expected cost	$ 125
MA | Strategic and Operational Efficiency Restructuring Program | Maximum
Segment Reporting Information [Line Items]
Restructuring and related cost, expected cost	155
MIS | Strategic and Operational Efficiency Restructuring Program | Minimum
Segment Reporting Information [Line Items]
Restructuring and related cost, expected cost	75
MIS | Strategic and Operational Efficiency Restructuring Program | Maximum
Segment Reporting Information [Line Items]
Restructuring and related cost, expected cost	$ 95

X

- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 49
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-49

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-18

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 47
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-Publisher FASB
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Amount expected to be recognized in earnings for the specified restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4.d)
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-Paragraph 1
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-URI https://asc.fasb.org/1943274/2147482017/420-10-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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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.

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