Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 27, 2013	Sep. 28, 2012	Dec. 31, 2012
Schedule Of Income Taxes [Line Items]
Effective tax rate	27.80%	32.30%
Tax benefit	$ 11		$ 17
Provision for income tax due to the expiration of the statue of limitations	10
Anticipated decrease in unrecognized tax benefits over the next 12 months	6
Accrued potential interest included within non-current income taxes payable	10		11
Accrued potential interest included within non-current income taxes payable, after income taxes	6		6
Potential penalties	7		7
U.S. Federal Research and Experimentation Tax Credit [Member]
Schedule Of Income Taxes [Line Items]
Tax benefit	$ 28