Employee Severance and Termination Costs - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 28, 2012 Employees	Sep. 30, 2011	Dec. 31, 2011 Employees
Restructuring Cost and Reserve [Line Items]
Employee severance and other related termination costs	$ 19	$ 10	$ 20
Number of employees terminated	1,200		1,200
Remaining balance of employee severance and other related termination costs to be paid	$ 10