ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Apr. 30, 2015		Apr. 30, 2014		Apr. 30, 2015		Apr. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	$ 118,289		$ 104,096		$ 343,276		$ 305,100
Realized investment gain/(loss)	(197,683)		(201,045)		(592,173)		(592,228)
Tax (expense)/benefit	(22,112)		(15,405)		(74,427)		(61,230)
Net of tax	96,177		88,691		268,849		243,870
Foreign exchange forward contracts	681,145		682,445		2,051,431		1,989,193
Foreign exchange forward contracts	(325,747)		(334,371)		(993,607)		(971,146)
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior service cost	(365)	[1]	(385)	[1]	(1,096)	[1]	(1,154)	[1]
Recognized actuarial gain/(loss)	(2,251)	[1]	(2,794)	[1]	(6,962)	[1]	(8,294)	[1]
Total before tax	(2,616)		(3,179)		(8,058)		(9,448)
Tax (expense)/benefit	785		958		2,405		2,897
Net of tax	(1,831)		(2,221)		(5,653)		(6,551)
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized investment gain/(loss)	104		(217)		579		(336)
Tax (expense)/benefit	(35)		78		(198)		121
Net of tax	69		(139)		381		(215)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	1,765		611		4,823		(143)
Tax (expense)/benefit	(205)		(102)		(460)		(112)
Net of tax	1,560		509		4,363		(255)
Foreign Exchange Contract [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign exchange forward contracts	951		440		2,071		552
Foreign exchange forward contracts	$ 814		$ 171		$ 2,752		$ (695)

[1] These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 8, Components of Net Periodic Pension Cost, for additional details).