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DERIVATIVES- Foreign Exchange Forward Contracts(Details) $ in Millions	Jul. 31, 2017 USD ($) contracts
Foreign Exchange Forward | Derivatives Designated as Hedging Instrument | Cash Flow Hedging
Derivative
Number of foreign exchange forward contracts (in units) | contracts	57
Foreign Exchange Forward | Derivatives Not Designated as Hedging Instruments
Derivative
Number of foreign exchange forward contracts (in units) | contracts	149
Sell | Forward Contracts USD | Cash Flow Hedging
Derivative
Total notional amount	$ 172
Sell | Forward Contracts USD | Cash Flow Hedging | Euro
Derivative
Total notional amount	30
Sell | Forward Contracts USD | Cash Flow Hedging | British Pound
Derivative
Total notional amount	34
Sell | Forward Contracts USD | Cash Flow Hedging | Canadian Dollar
Derivative
Total notional amount	30
Sell | Forward Contracts USD | Cash Flow Hedging | Japanese Yen
Derivative
Total notional amount	66
Sell | Forward Contracts USD | Cash Flow Hedging | Other
Derivative
Total notional amount	16
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Malaysian Ringgit
Derivative
Total notional amount	2
Buy | Forward Contracts USD | Cash Flow Hedging | Australian Dollars
Derivative
Total notional amount	4
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments
Derivative
Total notional amount	177
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Euro
Derivative
Total notional amount	101
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | British Pound
Derivative
Total notional amount	9
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Canadian Dollar
Derivative
Total notional amount	5
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Australian Dollars
Derivative
Total notional amount	15
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Japanese Yen
Derivative
Total notional amount	26
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Other
Derivative
Total notional amount	$ 23

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Number of foreign currency exchange rate derivatives held by the entity at the reporting date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

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