Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 391.6	$ 155.4	$ 316.0
State	78.3	56.2	29.8
Foreign	79.8	105.1	89.9
Deferred:
Federal	(43.1)	(24.2)	(358.3)
State	2.6	(25.8)	(3.7)
Foreign	(49.7)	(12.7)	(10.8)
Total	$ 459.5	$ 254.0	$ 62.9