Segment Information - Additional Information (Detail) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) segment	Jun. 30, 2016 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of segments | segment			2
US
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 244	$ 185	$ 449	$ 365
Foreign Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 599	$ 608	$ 1,222	$ 1,212
Sales | Foreign Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Maximum percentage of total consolidated net sales attributed to any non-U.S. country			10.00%