Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of stock -based compensation expense in operations

Stock-based compensation expense related to continuing operations is included in Selling, general and administrative expenses in the accompanying Consolidated Statements of Operations as follows (in millions):

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2018		2017		2018		2017
Stock-based compensation expense (1)	$	8.8	$	7.6	$	13.6	$	12.5

⁽¹⁾ All expense was recorded in our Corporate and Other business segment.