Income Taxes (Components of The Provision for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Current
Federal	$ 9.7	$ 21.3	$ 100.0
State	3.1	4.0	5.3
Foreign	62.7	72.5	71.0
Income tax provision (benefit), current	75.5	97.8	176.3
Deferred
Federal	4.1	7.4	6.5
State	0.2	1.4	0.2
Foreign	(1.6)	1.4	0.3
Income tax provision (benefit), deferred	2.7	10.2	7.0
Total	$ 78.2	$ 108.0	$ 183.3