Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Accruals for Probable Losses

Although we deny liability in all currently threatened or pending litigation proceedings in which we are or may be a party and believe that we have valid bases to contest all claims threatened or made against us, we have recorded a litigation contingency accrual for our reasonable estimate of probable loss for pending and threatened litigation proceedings, in aggregate, in millions, as follows:

	Year Ended December 31
	2018			2017			2016
Litigation contingency accrual - Beginning of period	$	.4		$	3.2		$	8.1
Adjustment to accruals - expense - Continuing operations	1.8			.6			7.1
Adjustment to accruals - expense - Discontinued operations	—			1.6			2.0
Cash payments	(.3		)	(5.0		)	(14.0		)
Litigation contingency accrual - End of period	$	1.9		$	.4		$	3.2