Segment Information - Additional Information (Detail) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) segment	Jun. 30, 2014 USD ($)
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	$ 167	$ 175	$ 330	$ 336
Foreign Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 601	$ 613	$ 1,212	$ 1,223
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			7.00%