Segment Information Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting [Abstract]
Total segment income for reportable segments	$ 379.3	$ 246.2	$ 839.1	$ 701.9
Corporate and other	(118.7)	(85.7)	(638.2)	(223.5)
Other interest expense	(23.6)	(26.1)	(70.3)	(81.6)
Interest income	0.1	0.1	0.3	0.4
Other income, net	6.4	2.6	217.9	4.2
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	$ 243.5	$ 137.1	$ 348.8	$ 401.4