Industry Segment Information (Schedule Of Financial Information Attributable To Geographic Regions) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Segment Reporting Information [Line Items]
Net Sales	$ 775.6	$ 829.8	$ 850.4	$ 801.2	$ 727.2	$ 768.2	$ 822.0	$ 778.2	$ 3,257.1	$ 3,095.7	$ 3,166.9
Long-Lived Assets	531.5				573.4				531.5	573.4
United States [Member]
Segment Reporting Information [Line Items]
Net Sales									2,359.3	2,017.6	2,127.2
Long-Lived Assets	293.5				244.5				293.5	244.5
MEXICO
Segment Reporting Information [Line Items]
Long-Lived Assets	33.5				111.4				33.5	111.4
Rest Of The World [Member]
Segment Reporting Information [Line Items]
Net Sales									897.8	1,078.1	1,039.7
Long-Lived Assets	96.6				106.1				96.6	106.1
China [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	$ 107.9				$ 111.4				$ 107.9	$ 111.4