Segment Information (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Summary of segment information

The following table sets forth financial information by business segment (in millions):

	Net Sales				Operating Income				Operating Income as a % of Net Sales
	2017		2016		2017		2016		2017		2016
Three Months Ended June 30,
Electrical	$	656.4	$	641.4	$	71.0	$	77.1	10.8	%	12.0	%
Power	291.9		267.4		59.6		55.0		20.4	%	20.6	%
TOTAL	$	948.3	$	908.8	$	130.6	$	132.1	13.8	%	14.5	%
Six Months Ended June 30,
Electrical	$	1,243.9	$	1,224.1	$	121.0	$	132.5	9.7	%	10.8	%
Power	556.7		519.5		113.7		101.5		20.4	%	19.5	%
TOTAL	$	1,800.6	$	1,743.6	$	234.7	$	234.0	13.0	%	13.4	%