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Revenues - Revenue Recognition Timing (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue recognized	$ 1,813	$ 1,472	$ 5,416	$ 4,436
At Point in Time
Disaggregation of Revenue [Line Items]
Revenue recognized	689	413	2,097	1,336
Over Time
Disaggregation of Revenue [Line Items]
Revenue recognized	1,124	1,059	3,319	3,100
MA
Disaggregation of Revenue [Line Items]
Revenue recognized	831	776	2,432	2,260
MA | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue recognized	834	779	2,442	2,270
MA | At Point in Time | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue recognized	26	24	65	73
MA | Over Time | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue recognized	805	752	2,367	2,187
MIS
Disaggregation of Revenue [Line Items]
Revenue recognized	982	696	2,984	2,176
MIS | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue recognized	1,030	743	3,128	2,314
MIS | At Point in Time | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue recognized	663	389	2,032	1,263
MIS | Over Time | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue recognized	$ 319	$ 307	$ 952	$ 913

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