Goodwill And Other Acquired Intangible Assets - Acquired Intangible Assets and Related Amortization (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, net	$ 2,058	$ 2,210
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	2,021	2,024
Accumulated amortization	(520)	(453)
Acquired intangible assets, net	1,501	1,571
Software/product technology
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	659	661
Accumulated amortization	(338)	(283)
Acquired intangible assets, net	321	378
Database
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	178	178
Accumulated amortization	(78)	(64)
Acquired intangible assets, net	100	114
Trade names
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	196	197
Accumulated amortization	(68)	(58)
Acquired intangible assets, net	128	139
Other
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	52	52
Accumulated amortization	(44)	(44)
Acquired intangible assets, net	$ 8	$ 8