ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior service cost	$ 1,543
Recognized actuarial gain/(loss)	11,100
Settlement/curtailment	(32)
Total before tax	451,415	411,626	366,910
Tax (expense)/benefit	(87,459)	(81,664)	(85,963)
Net of tax	363,956	574,935	319,309
Realized investment gain/(losses)	(814,461)	(810,358)	(843,221)
Foreign exchange forward contracts	2,789,147	2,648,063	2,671,656
Foreign exchange forward contracts	(1,362,984)	(1,276,060)	(1,291,558)
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	(1,543)
Recognized actuarial gain/(loss)	(11,100)
Total before tax	(12,675)
Tax (expense)/benefit	3,786
Net of tax	(8,889)
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 (expense)/benefit	181
Net of tax	(322)
Realized investment gain/(losses)	(503)
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	1,300
Tax (expense)/benefit	(112)
Net of tax	1,188
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	1,176
Foreign exchange forward contracts	$ 124