Goodwill and Other Intangible Assets, Net - Other Intangible Assets, Net (Detail) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Intangible Asset Excluding Goodwill [Line Items]
Gross other intangible assets	$ 2,822	$ 2,780
Accumulated amortization	(1,457)	(1,370)
Other intangible assets	173	188
Other intangible assets, net	1,365	1,410
Developed technology, including patents
Intangible Asset Excluding Goodwill [Line Items]
Gross other intangible assets	2,202	2,135
Accumulated amortization	(1,188)	(1,117)
Other intangible assets, net	1,014	1,018
Other amortized intangible assets
Intangible Asset Excluding Goodwill [Line Items]
Gross other intangible assets	447	457
Accumulated amortization	(269)	(253)
Other intangible assets, net	$ 178	$ 204