Stock Repurchase Programs - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 28, 2013	Jun. 29, 2012	Jun. 28, 2013 $600 Million Repurchase Plan	Jun. 28, 2013 $600 Million Repurchase Plan	Jun. 28, 2013 Other Stock Repurchases	Jun. 28, 2013 Other Stock Repurchases
Equity, Class of Treasury Stock [Line Items]
Number of stock repurchase programs authorized by the Board of Directors	2
Cumulative Repurchase of common stock - shares				70.4
Authorization to repurchase outstanding common stock				$ 600
Cumulative Repurchase of outstanding common stock				405.7
Stock available to be purchased under stock repurchase program				194.3
Purchase of treasury stock, shares			2.3	13.8	0.1	0.7
Repurchase of outstanding common stock	$ 31.8	$ 3.0	$ 4.6	$ 30.3	$ 0.2	$ 1.5