Employee Benefit Plans (Changes In Fair Value Of U.S. Pension Plans' Level 3 Assets) (Details) - Fair Value Inputs Level3 [Member] - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	$ 93.3	$ 102.3	$ 105.8
Unrealized gains	(3.3)	(0.3)	6.7
Realized gains	8.5	12.1	2.4
Purchases	2.6	24.7	3.1
Sales	(13.9)	(45.5)	(15.7)
Ending balance	87.2	93.3	102.3
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	58.7	60.8	55.0
Unrealized gains	(3.7)	(2.0)	6.4
Realized gains	5.1	8.9	0.7
Purchases		20.0
Sales	(5.4)	(29.0)	(1.3)
Ending balance	54.7	58.7	60.8
Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	13.5	22.1	31.4
Unrealized gains	0.7		1.1
Realized gains	0.6	0.8
Purchases	0.8	2.7	1.0
Sales	(2.6)	(12.1)	(11.4)
Ending balance	13.0	13.5	22.1
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	21.1	19.4	19.4
Unrealized gains	(0.3)	1.7	(0.8)
Realized gains	2.8	2.4	1.7
Purchases	1.8	2.0	2.1
Sales	(5.9)	(4.4)	(3.0)
Ending balance	$ 19.5	$ 21.1	$ 19.4