Goodwill And Other Intangibles (Schedule Of Changes To Goodwill) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 29, 2013	Dec. 29, 2012	Sep. 28, 2013
Goodwill [Line Items]
Beginning balance	$ 1,151.0	$ 1,117.6	$ 1,143.9
Goodwill, Acquired During Period		25.9
Foreign Currency Translation Adjustments	(7.1)	7.5
Ending balance		1,151.0	1,143.9
Electrical Segment [Member]
Goodwill [Line Items]
Beginning balance	1,111.7	1,105.0	1,104.8
Goodwill, Acquired During Period		2.7
Foreign Currency Translation Adjustments	(6.9)	4.0
Ending balance		1,111.7	1,104.8
Mechanical Segment [Member]
Goodwill [Line Items]
Beginning balance	39.3	12.6	39.1
Goodwill, Acquired During Period		23.2
Foreign Currency Translation Adjustments	(0.2)	3.5
Ending balance		$ 39.3	$ 39.1