CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Statement of Comprehensive Income [Abstract]
Net earnings	$ 363,956	$ 574,935	$ 319,309
Other comprehensive income/(loss), net of income taxes:
Foreign currency translation	14,091	(13,065)	(109,815)
Pension liability adjustment	3,931	39,233	(42,613)
Unrealized investment gains/(losses)	757	(1,481)	(5,896)
Unrealized gains/(losses) on derivatives	7,092	(2,572)	270
Total other comprehensive income/(loss), net of income taxes	25,871	22,115	(158,054)
Comprehensive income	$ 389,827	$ 597,050	$ 161,255