Employee Benefit Plans (Changes In Fair Value Of Assets Held By International Pension Plans' Level 3 Assets) (Details) (USD $)	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	$ 105,800,000	$ 87,300,000	$ 66,600,000
Purchases	3,100,000	20,800,000	32,700,000
Sales	(15,700,000)	(2,800,000)	(20,000,000)
Ending balance	102,300,000	105,800,000	87,300,000
International Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Ending balance	135,500,000	113,300,000	108,200,000
International Assets [Member] | Equity/Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Ending balance	43,200,000	35,100,000	41,700,000
International Assets [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Ending balance	26,300,000	21,800,000	26,300,000
International Assets [Member] | Significant Unobservable Inputs (Level 3) [Member] | Equity/Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	21,800,000	26,300,000	21,700,000
Unrealized gains	1,100,000	1,400,000	900,000
Foreign currency exchange	1,700,000	(3,800,000)	2,500,000
Purchases	2,600,000	2,600,000	6,200,000
Sales	(900,000)	(4,600,000)	(5,000,000)
Net transfers into (out of) level 3		(100,000)
Ending balance	$ 26,300,000	$ 21,800,000	$ 26,300,000