Goodwill And Intangible Assets (Schedule Of Changes To Goodwill) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2010	Dec. 31, 2011
Goodwill [Line Items]
Acquired Indefinite-lived Intangible Asset, Amount	$ 12.5
Goodwill	1,081.9	1,151.0		1,117.6
Acquisitions	15.3	25.9
Goodwill, Impairment Loss	76.3
Translation Adjustments	(8.1)	7.5
Goodwill, Impaired, Accumulated Impairment Loss	76.3
Impairment of Intangible Assets, Finite-lived	17.0
Electrical Segment [Member]
Goodwill [Line Items]
Goodwill	1,055.0	1,111.7		1,105.0
Acquisitions	15.3	2.7
Goodwill, Impairment Loss	64.2
Translation Adjustments	(7.8)	4.0
Goodwill, Impaired, Accumulated Impairment Loss	64.2
Mechanical Segment [Member]
Goodwill [Line Items]
Goodwill	26.9	39.3		12.6
Acquisitions	0		23.2
Goodwill, Impairment Loss	12.1
Translation Adjustments	(0.3)	3.5
Goodwill, Impaired, Accumulated Impairment Loss	12.1
Technology [Member]
Goodwill [Line Items]
Acquired Indefinite-lived Intangible Asset, Amount	1.8
Impairment of Intangible Assets, Finite-lived	16.2
Technology [Member] | Electrical Segment [Member]
Goodwill [Line Items]
Impairment of Intangible Assets, Finite-lived	16.2
Technology [Member] | Mechanical Segment [Member]
Goodwill [Line Items]
Impairment of Intangible Assets, Finite-lived	$ 0