Goodwill and Intangible (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Goodwill Roll Forward
Goodwill, Beginning Balance	$ 800.4
Goodwill Acquired	80.7
Translation adjustments	(1.8)
Goodwill, Ending Balance	879.3
Goodwill, Acquired During Period	80.7
Other Intangible Assets [Line Items]
Gross Amount Finite Intangible	388.7		333.4
Gross Amount Indefinite Lived Intangible	55.5		55.9
Total Gross Other Intangible Assets	444.2		389.3
Accumulated Amortization Intangible	(117.4)		(102.7)
Finite-Lived Intangible Assets, Future Amortization Expense, Current and Five Succeeding Fiscal Years [Abstract]
Year to date amortization expense	18.0	14.6
Future Amortization Expense, Remainder of Fiscal Year	5.4
Future Amort Yr1	21.9
Future Amort Yr2	21.0
Future Amort Yr3	19.7
Future Amort Yr4	18.0
Future Amort Yr5	16.6
Goodwill Annual Impairment Test [Abstract]
Excess Of Goodwill Implied Fair Value Over Carrying Value Beginning Range	100.00%
Excess Of Goodwill Implied Fair Value Over Carrying Value End Of Range	400.00%
Disclosure Of Date Of Annual Goodwill Impairment Test	Apr. 01, 2014
Tradenames Other [Member]
Other Intangible Assets [Line Items]
Gross Amount Indefinite Lived Intangible	55.5		55.9
Patents Tradenames Trademarks [Member]
Other Intangible Assets [Line Items]
Gross Amount Finite Intangible	124.9		111.2
Accumulated Amortization Intangible	(31.5)		(27.7)
Customer Relationships [Member]
Other Intangible Assets [Line Items]
Gross Amount Finite Intangible	263.8		222.2
Accumulated Amortization Intangible	(85.9)		(75.0)
Electrical [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	520.9
Goodwill Acquired	61.2
Translation adjustments	(1.6)
Goodwill, Ending Balance	580.5
Power [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	279.5
Goodwill Acquired	19.5
Translation adjustments	(0.2)
Goodwill, Ending Balance	$ 298.8