Restructuring (Tables)

12 Months Ended

Dec. 31, 2018

Restructuring and Related Activities [Abstract]

Restructuring Related Costs

Restructuring related costs included in Selling, general and administrative expenses in the Consolidated Statements of Operations and Comprehensive Income included costs for severance and other restructuring costs as follows:

	Years ended December 31
In millions	2018		2017		2016
Severance and related costs	$	13.2	$	27.3	$	12.2
Other	27.4		0.9		—
Total restructuring costs	$	40.6	$	28.2	$	12.2

Restructuring Costs By Segment [Table Text Block]

Restructuring costs by reportable segment were as follows:

	Years ended December 31
In millions	2018		2017		2016
Aquatic Systems	$	15.3	$	3.6	$	1.8
Filtration Solutions	14.6		13.0		7.4
Flow Technologies	9.3		7.0		1.3
Other	1.4		4.6		1.7
Consolidated	$	40.6	$	28.2	$	12.2

Restructuring Accrual Activity Recorded on Consolidated Balance Sheets

Activity related to accrued severance and related costs recorded in Other current liabilities in the Consolidated Balance Sheets is summarized as follows:

	Years ended December 31
In millions	2018			2017
Beginning balance	$	34.5		$	15.1
Costs incurred	13.2			27.3
Cash payments and other	(20.6		)	(7.9		)
Ending balance	$	27.1		$	34.5