Equity Based Compensation (Summary Of Stock Option Activity) (Details) - $ / shares	12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options Outstanding, Beginning Balance (in shares)	7,191,442	7,197,882	7,329,820
Granted (in shares)	969,450	1,023,836	900,073
Exercised (in shares)	(916,789)	(916,566)	(1,008,848)
Canceled (in shares)	(421,713)	(113,710)	(23,163)
Options Outstanding, Ending Balance (in shares)	6,822,390	7,191,442	7,197,882
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Price, Beginning Balance (in dollars per share)	$ 29.38	$ 26.84	$ 23.88
Granted (in dollars per share)	28.19	38.58	42.17
Exercised (in dollars per share)	19.39	18.54	18.80
Canceled (in dollars per share)	36.95	38.67	34.02
Weighted Average Exercise Price, Ending Balance (in dollars per share)	$ 30.09	$ 29.38	$ 26.84