Acquisitions - Summary of Purchase Price Allocation (Detail) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
2016 Acquisition [Member]
Business Acquisition [Line Items]
Purchase price including contingent consideration		$ 175
Net purchase price		178
Fair value of net assets acquired:
Current assets other than cash		25
Property, plant and equipment		12
Intangible assets		45
Current liabilities		(20)
Deferred tax liabilities		(1)
Total fair value of net assets acquired		61
Goodwill		117
2016 Acquisition [Member] | Trade Names [Member]
Fair value of net assets acquired:
Intangible assets		20
2016 Acquisition [Member] | Customer Relationships [Member]
Fair value of net assets acquired:
Intangible assets		25
2016 Acquisition [Member] | As Initially Reported [Member]
Business Acquisition [Line Items]
Net purchase price	$ 176
Fair value of net assets acquired:
Current assets other than cash	26
Property, plant and equipment	12
Current liabilities	(19)
Deferred tax liabilities	(19)
Total fair value of net assets acquired	46
Goodwill	130
2016 Acquisition [Member] | As Initially Reported [Member] | Trade Names [Member]
Fair value of net assets acquired:
Intangible assets	21
2016 Acquisition [Member] | As Initially Reported [Member] | Customer Relationships [Member]
Fair value of net assets acquired:
Intangible assets	$ 25
2016 Acquisition [Member] | Measurement Period Adjustments [Member]
Business Acquisition [Line Items]
Net purchase price		2
Fair value of net assets acquired:
Current assets other than cash		(1)
Current liabilities		(1)
Deferred tax liabilities		18
Total fair value of net assets acquired		15
Goodwill		(13)
2016 Acquisition [Member] | Measurement Period Adjustments [Member] | Trade Names [Member]
Fair value of net assets acquired:
Intangible assets		$ (1)
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Purchase price including contingent consideration			$ 544
Less: cash acquired			(29)
Net purchase price			515
Fair value of net assets acquired:
Current assets other than cash			181
Property, plant and equipment			59
Intangible assets			103
Current liabilities			(72)
Deferred tax liabilities			(31)
Total fair value of net assets acquired			239
Goodwill			276
Other non-current liability			(1)
Series of Individually Immaterial Business Acquisitions | Trade Names [Member]
Fair value of net assets acquired:
Intangible assets			24
Series of Individually Immaterial Business Acquisitions | Customer Relationships [Member]
Fair value of net assets acquired:
Intangible assets			$ 79