Segment Information - Additional Information (Detail) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) segment	Sep. 30, 2014 USD ($)
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	$ 182	$ 162	$ 520	$ 495
Foreign Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 583	$ 612	$ 1,788	$ 1,837
Sales [Member] | 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			9.00%