Supplemental Disclosure of Cash Flow Information (Non-Cash Financing Activities And Cash Payments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 03, 2015	Mar. 28, 2014
Supplemental Cash Flow Elements [Abstract]
Capital expenditures in accounts payable	$ 98.6	$ 54.8
Capital Lease Obligations Incurred	0.6	0.4
Interest income	(0.3)	(0.2)
Interest expense	5.7	2.8
Income taxes	$ 5.4	$ 5.3