Segment Information - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting [Abstract]
Number of segments			2
US
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 171	$ 171	$ 504	$ 506
Foreign Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 571	$ 538	$ 1,724	$ 1,635
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			8.00%