Revenues - Revenue Recognition Timing (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue recognized	$ 1,494	$ 1,381	$ 2,964	$ 2,903
At Point in Time
Disaggregation of Revenue [Line Items]
Revenue recognized	465	428	924	996
Over Time
Disaggregation of Revenue [Line Items]
Revenue recognized	1,029	953	2,040	1,907
MA
Disaggregation of Revenue [Line Items]
Revenue recognized	747	675	1,484	1,370
MA | At Point in Time
Disaggregation of Revenue [Line Items]
Revenue recognized	22	16	49	57
MA | Over Time
Disaggregation of Revenue [Line Items]
Revenue recognized	725	659	1,435	1,313
MIS
Disaggregation of Revenue [Line Items]
Revenue recognized	747	706	1,480	1,533
MIS | At Point in Time
Disaggregation of Revenue [Line Items]
Revenue recognized	443	412	875	939
MIS | Over Time
Disaggregation of Revenue [Line Items]
Revenue recognized	$ 304	$ 294	$ 605	$ 594