XML 41 R86.htm IDEA: XBRL DOCUMENT

Actuarial Assumptions (Detail)	12 Months Ended
Actuarial Assumptions (Detail)	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2010
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	4.20%	4.90%	5.50%
Expected return on assets	6.00%	6.25%	6.25%
Salary increase	3.50%	3.75%	4.00%

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References+ Details