Goodwill And Other Acquired Intangible Assets - Acquired Intangible Assets and Related Amortization (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, net	$ 2,422	$ 2,467
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	2,085	2,101
Accumulated amortization	(400)	(381)
Acquired intangible assets, net	1,685	1,720
Software/product technology
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	679	663
Accumulated amortization	(233)	(219)
Acquired intangible assets, net	446	444
Database
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	179	179
Accumulated amortization	(51)	(46)
Acquired intangible assets, net	128	133
Trade names
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	205	207
Accumulated amortization	(51)	(47)
Acquired intangible assets, net	154	160
Other
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	54	54
Accumulated amortization	(45)	(44)
Acquired intangible assets, net	$ 9	$ 10