Employee Benefit Plans (Changes In Fair Value Of U.S. Pension Plans' Level 3 Assets) (Details) - Pension Plan - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016
Change in fair value of plan assets:
Fair value of plan assets, beginning of year	$ 465.1	$ 455.5
Unrealized gains	(130.8)	(147.7)
Foreign currency exchange	(0.5)	(2.5)
Fair value of plan assets, end of year	486.3	465.1	$ 455.5
Non - U.S. Plan
Change in fair value of plan assets:
Fair value of plan assets, beginning of year	161.1
Fair value of plan assets, end of year	155.4	161.1
Non - U.S. Plan | Level 3
Change in fair value of plan assets:
Fair value of plan assets, beginning of year	34.3	31.8	28.2
Unrealized gains	(4.0)	1.2	2.7
Foreign currency exchange	0.2	1.7	0.3
Purchases	0.5	1.0	2.7
Sales	(2.4)	(1.4)	(2.1)
Fair value of plan assets, end of year	$ 28.6	$ 34.3	$ 31.8