Other Intangible Assets, Net (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Intangible Asset Excluding Goodwill [Line Items]
Gross other intangible assets	$ 2,784	$ 2,609
Accumulated amortization	(1,277)	(1,235)
Other intangible assets, net	1,507	1,374
Developed technology, including patents
Intangible Asset Excluding Goodwill [Line Items]
Gross other intangible assets	2,177	2,002
Accumulated amortization	(1,041)	(1,010)
Other intangible assets, net	1,136	992
Other amortized intangible assets
Intangible Asset Excluding Goodwill [Line Items]
Gross other intangible assets	435	435
Accumulated amortization	(236)	(225)
Other intangible assets, net	199	210
Indefinite-lived intangible assets
Intangible Asset Excluding Goodwill [Line Items]
Other intangible assets	$ 172	$ 172