Restructuring Costs (Tables)

12 Months Ended

Dec. 31, 2019

Restructuring and Related Activities [Abstract]

Summary of Restructuring Costs

Pre-tax restructuring costs incurred in each of our segments and the location of the costs in the Consolidated Statement of Income for the years ended December 31, 2019, 2018 and 2017 are as follows (in millions):

	Twelve Months Ended December 31, 2019						Twelve Months Ended December 31, 2018						Twelve Months Ended December 31, 2017
	Electrical		Power		Total		Electrical		Power		Total		Electrical		Power		Total
Restructuring costs
Cost of goods sold	$	12.5	$	9.8	$	22.3	$	4.9	$	3.3	$	8.2	$	11.5	$	2.2	$	13.7
S&A expense	8.0		1.7		9.7		3.4		0.4		3.8		5.4		1.2		6.6
Total restructuring costs	$	20.5	$	11.5	$	32.0	$	8.3	$	3.7	$	12.0	$	16.9	$	3.4	$	20.3

Schedule of Restructuring Reserve by Type of Cost

The actual and expected pre-tax costs for our restructuring actions are as follows (in millions):

	Expected Costs		Costs incurred in 2017		Costs incurred in 2018			Costs incurred in 2019		Remaining costs at 12/31/19
2019 Restructuring Actions
Electrical Segment	$	21.2	$	—	$	—		$	18.3	$	2.9
Power Segment	21.0		—		—			10.8		10.2
Total 2019 Restructuring Actions	$	42.2	$	—	$	—		$	29.1	$	13.1
2018 Restructuring Actions
Electrical Segment	$	12.5	$	—	$	8.6		$	2.2	$	1.7
Power Segment	4.8		—		4.1			0.7		—
Total 2018 Restructuring Actions	$	17.3	$	—	$	12.7		$	2.9	$	1.7
2017 and Prior Restructuring Actions
Electrical Segment	$	16.6	$	16.9	$	(0.3	)	$	—	$	—
Power Segment	3.0		3.4		(0.4		)	—		—
Total 2017 and Prior Restructuring Actions	$	19.6	$	20.3	$	(0.7	)	$	—	$	—
Total Restructuring Actions	$	79.1	$	20.3	$	12.0		$	32.0	$	14.8

The following table summarizes the accrued liabilities for our restructuring actions (in millions):

	Beginning Accrued  Restructuring Balance 1/1/19		Pre-tax Restructuring Costs		Utilization and Foreign Exchange			Ending Accrued  Restructuring Balance 12/31/19
2019 Restructuring Actions
Severance	$	—	$	16.6	$	(8.3	)	$	8.3
Asset write-downs	—		4.8		(4.8		)	—
Facility closure and other costs	—		7.7		(7.6		)	0.1
Total 2019 Restructuring Actions	$	—	$	29.1	$	(20.7	)	$	8.4
2018 and Prior Restructuring Actions
Severance	$	7.7	$	0.3	$	(5.0	)	$	3.0
Asset write-downs	—		0.3		(0.3		)	—
Facility closure and other costs	13.3		2.3		(9.6		)	6.0
Total 2018 and Prior Restructuring Actions	$	21.0	$	2.9	$	(14.9	)	$	9.0
Total Restructuring Actions	$	21.0	$	32.0	$	(35.6	)	$	17.4