ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2013		Oct. 31, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	$ 92,388		$ 104,837
Tax benefit	(20,875)		(15,672)
Net of tax	71,513		339,472
Realized investment gain/(losses)	(194,884)		(195,965)
Foreign exchange forward contracts	629,779		627,600
Foreign exchange forward contracts	(304,065)		(300,517)
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	(384)	[1]
Recognized actuarial gain/(loss)	(2,730)	[1]
Total before tax	(3,114)
Tax benefit	965
Net of tax	(2,149)
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]
Tax benefit	20
Net of tax	(37)
Realized investment gain/(losses)	(57)
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	(821)
Tax benefit	14
Net of tax	(807)
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	(1)
Foreign exchange forward contracts	$ (820)

[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).