ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jan. 31, 2014		Jan. 31, 2013	Jan. 31, 2014		Jan. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	$ 108,616		$ 102,139	$ 201,004		$ 206,976
Realized investment gain/(losses)	(196,299)		(206,009)	(391,183)		(401,974)
Tax benefit	(24,950)		(21,820)	(45,825)		(37,492)
Net of tax	83,666		76,770	155,179		416,242
Foreign exchange forward contracts	676,969		662,455	1,306,748		1,290,055
Foreign exchange forward contracts	(332,710)		(320,492)	(636,775)		(621,009)
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	(385)	[1]		(769)	[1]
Recognized actuarial gain/(loss)	(2,770)	[1]		(5,500)	[1]
Total before tax	(3,155)			(6,269)
Tax benefit	974			1,939
Net of tax	(2,181)			(4,330)
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/(losses)	(62)			(119)
Tax benefit	23			43
Net of tax	(39)			(76)
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	67			(754)
Tax benefit	(24)			(10)
Net of tax	43			(764)
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	113			112
Foreign exchange forward contracts	$ (46)			$ (866)

[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).