Product Warranty And Safety Recall Campaigns (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Jul. 01, 2012	Jun. 26, 2011	Dec. 31, 2011
Net Amount at Risk by Product and Guarantee [Line Items]
Liability for safety recall campaigns	$ 6.7	$ 2.9	$ 10.7