Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Operating Activities
Net earnings	$ 174,768	$ 193,320
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	48,527	46,214
Changes in operating assets and liabilities	(8,346)	(43,836)
Tax benefit of equity plans	(9,483)	(9,698)
Stock compensation plan expense	7,363	8,624
Deferred taxes	(4,037)	4,214
Other, net	8,597	(16,437)
Net cash provided by operating activities	217,389	182,401
Investing Activities
Net expenditures on property, plant, and equipment	(69,425)	(57,987)
Change in short-term investments	30,781	(119,930)
Net cash used in investing activities	(38,644)	(177,917)
Financing Activities
Purchase of treasury stock	(60,975)	(82,573)
Repayments of long-term debt	(1,093)	(46,084)
Change in short-term borrowings	(66,530)	70,519
Dividends paid	(41,184)	(34,277)
Tax benefit of equity plans	9,483	9,698
Exercise of stock options	12,131	12,345
Net cash used in financing activities	(148,168)	(70,372)
Effect of exchange rate changes on cash	7,622	(18,586)
Increase (Decrease) in cash and cash equivalents	38,199	(84,474)
Cash and cash equivalents, beginning of year	225,789	273,494
Cash and cash equivalents, end of period	$ 263,988	$ 189,020