Goodwill And Other Acquired Intangible Assets - Acquired Intangible Assets and Related Amortization (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, net	$ 1,709	$ 1,498
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	1,460	1,325
Accumulated amortization	(244)	(235)
Acquired intangible assets, net	1,216	1,090
Trade secrets
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	30	30
Accumulated amortization	(28)	(29)
Acquired intangible assets, net	2	1
Software/product technology
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	361	372
Accumulated amortization	(133)	(131)
Acquired intangible assets, net	228	241
Trade names
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	149	150
Accumulated amortization	(31)	(30)
Acquired intangible assets, net	118	120
Other
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	177	80
Accumulated amortization	(32)	(34)
Acquired intangible assets, net	$ 145	$ 46