Segment Information - Additional Information (Detail) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment	Sep. 30, 2016 USD ($)
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	$ 251	$ 190	$ 731	$ 555
Foreign Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 622	$ 587	$ 1,813	$ 1,799
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%