Segment Information Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting [Abstract]
Total segment income for reportable segments	$ 213.1	$ 220.8
Corporate and other	(61.3)	(63.3)
Other interest expense	(27.8)	(32.3)
Interest income	0.2	0.2
Other income, net	1.9	0.8
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	$ 126.1	$ 126.2