Accounting For Stock-Based Compensation (Tables)

6 Months Ended

Jan. 31, 2012

Accounting For Stock-Based Compensation [Abstract]

Summary Of Stock Option Activity

	Options Outstanding			Weighted Average Exercise Price
Outstanding at July 31, 2011		4,193,997		$	35.44
Granted		530,164			69.48
Exercised		(525,497	)		22.36
Canceled		(8,078	)		50.40
Outstanding at January 31, 2012		4,190,586			41.36

Summary Of Information Concerning Outstanding And Exercisable Options

Range of Exercise Prices		Number Outstanding		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
$	17 to $25		274,150		0.86	$	17.84		274,150	$	17.84
$	25 to $33		1,288,309		2.73		30.65		1,288,309		30.65
$	33 to $41		807,027		5.68		35.53		801,294		35.54
$	41 to $49		797,904		7.11		43.55		711,208		43.70
$	49 and above		1,023,196		9.17		64.04		204,501		59.46
			4,190,586		5.58		41.36		3,279,462		35.40