Goodwill and Intangible Assets, net (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of changes in goodwill

Changes in the carrying values of goodwill for the three months ended March 31, 2018, were as follows (in millions):

	Segment
	Electrical		Power		Total
BALANCE DECEMBER 31, 2017	$	717.6	$	371.4	$	1,089.0
Current year acquisitions (Note 3 – Business Acquisitions)	—		669.0		669.0
Foreign currency translation and prior year acquisitions	1.9		0.2		2.1
BALANCE MARCH 31, 2018	$	719.5	$	1,040.6	$	1,760.1

Schedule of intangible assets

The carrying value of other intangible assets included in Intangible assets, net in the Condensed Consolidated Balance Sheet is as follows (in millions):

	March 31, 2018					December 31, 2017
	Gross Amount		Accumulated Amortization			Gross Amount		Accumulated Amortization
Definite-lived:
Patents, tradenames and trademarks	$	206.5	$	(52.2	)	$	151.4	$	(50.1	)
Customer/agent relationships and other	850.5		(169.2		)	462.0		(156.7		)
Total	$	1,057.0	$	(221.4	)	$	613.4	$	(206.8	)
Indefinite-lived:
Tradenames and other	53.9		—			53.8		—
TOTAL	$	1,110.9	$	(221.4	)	$	667.2	$	(206.8	)