Goodwill And Other Acquired Intangible Assets - Acquired Intangible Assets and Related Amortization (Detail) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, net	$ 1,866	$ 1,890
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	2,165	2,035
Accumulated amortization	(724)	(631)
Acquired intangible assets, net	1,441	1,404
Software/product technology
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	774	695
Accumulated amortization	(526)	(419)
Acquired intangible assets, net	248	276
Database
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	164	166
Accumulated amortization	(103)	(89)
Acquired intangible assets, net	61	77
Trade names
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	201	199
Accumulated amortization	(96)	(83)
Acquired intangible assets, net	105	116
Other
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	64	67
Accumulated amortization	(53)	(50)
Acquired intangible assets, net	$ 11	$ 17