XML 45 R24.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock-Based Compensation (Tables)
6 Months Ended
Jan. 31, 2013
Text Block [Abstract]  
Stock Option Assumptions
The weighted-average assumptions used in the Black-Scholes valuation model are reflected in the following table:
 
 
Six Months Ended
January 31, 2013
 
Six Months Ended
January 31, 2012
 
Service-Based
 
Performance-
Based Option
 
Service-Based
 
Performance-
Based Option
Black-Scholes Option Valuation Assumptions
Option Awards
 
Awards
 
Option Awards
 
Awards
Expected term (in years)
5.95

 

 
5.89

 
6.57

Expected volatility
38.68
%
 

 
39.40
%
 
39.21
%
Expected dividend yield
2.20
%
 

 
2.07
%
 
1.99
%
Risk-free interest rate
0.90
%
 

 
1.16
%
 
2.05
%
Weighted-average market value of underlying stock at grant date
$
30.36

 
$

 
$
27.00

 
$
29.55

Weighted-average exercise price
$
30.36

 
$

 
$
27.00

 
$
29.55

Weighted-average fair value of options granted during the period
$
9.01

 
$

 
$
8.37

 
$
10.01

Summary of Stock Option Activity under Company's Share-Based Compensation Plans
A summary of stock option activity under the Company’s share-based compensation plans for the six months ended January 31, 2013 is presented below:
Options
Shares
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Term
 
Aggregate
Intrinsic
Value
Outstanding at July 31, 2012
6,253,751
 
$
29.24

 
 
 
 
New grants
790,450
 
$
30.36

 
 
 
 
Exercised
(330,338)
 
$
18.57

 
 
 
 
Forfeited or expired
(497,273)
 
$
30.53

 
 
 
 
Outstanding at January 31, 2013
6,216,590
 
$
29.84

 
6.3
 
$
35,476

Exercisable at January 31, 2013
4,049,293
 
$
30.19

 
5.1
 
$
22,891