Acquisitions - Schedule of Purchase Price Allocation (Detail) - Series of Individually Immaterial Business Acquisitions $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($)
Business Acquisition [Line Items]
Purchase price including contingent consideration	$ 431
Less: cash acquired	(29)
Net purchase price	402
Fair value of net assets acquired:
Current assets other than cash	145
Property, plant and equipment	50
Intangible assets	84
Current liabilities	(69)
Deferred tax liabilities, net	(28)
Other non-current liability	(1)
Total fair value of net assets acquired	181
Goodwill (1)	221
Trade Names [Member]
Fair value of net assets acquired:
Intangible assets	22
Customer Relationships [Member]
Fair value of net assets acquired:
Intangible assets	$ 62