CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
Statement of Comprehensive Income [Abstract]
Net earnings	$ 83,666	$ 76,770	$ 155,179	$ 416,242
Other comprehensive income/(loss), net of income taxes:
Foreign currency translation	(21,938)	7,570	21,289	41,322
Pension liability adjustment	(71)	3,375	(665)	4,563
Unrealized investment gains/(losses)	(292)	(344)	(374)	63
Unrealized gains/(losses) on derivatives	3,126	(1,825)	5,581	(3,777)
Total other comprehensive income/(loss), net of income taxes	(19,175)	8,776	25,831	42,171
Comprehensive income	$ 64,491	$ 85,546	$ 181,010	$ 458,413