Segment Information Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting [Abstract]
Total segment income for reportable segments	$ 402.9	$ 200.2
Corporate and other	(75.4)	(445.0)
Other interest expense	(21.2)	(23.5)
Other income (loss), net	11.0	(2.9)
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	$ 317.3	$ (271.2)