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DERIVATIVES- Foreign Exchange Forward Contracts (Details) $ in Millions	Apr. 30, 2019 USD ($) contracts
Foreign Exchange Forward | Derivatives Designated as Hedging Instrument | Cash Flow Hedging
Derivative
Number of foreign exchange forward contracts (in units) | contracts	276
Foreign Exchange Forward | Derivatives Not Designated as Hedging Instruments
Derivative
Number of foreign exchange forward contracts (in units) | contracts	145
Sell | Forward Contracts USD | Cash Flow Hedging
Derivative
Total notional amount	$ 325
Sell | Forward Contracts USD | Cash Flow Hedging | Euro
Derivative
Total notional amount	57
Sell | Forward Contracts USD | Cash Flow Hedging | British Pound
Derivative
Total notional amount	56
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	97
Sell | Forward Contracts USD | Cash Flow Hedging | Korean Won
Derivative
Total notional amount	50
Sell | Forward Contracts USD | Cash Flow Hedging | Chinese Yuan Renminbi
Derivative
Total notional amount	57
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments
Derivative
Total notional amount	49
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Canadian Dollar
Derivative
Total notional amount	4
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Malaysian Ringgit
Derivative
Total notional amount	2
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Danish Krone
Derivative
Total notional amount	4
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Korean Won
Derivative
Total notional amount	31
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Singapore Dollar
Derivative
Total notional amount	5
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Swiss Franc
Derivative
Total notional amount	7
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Chinese Yuan Renminbi
Derivative
Total notional amount	33
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Polish Zloty
Derivative
Total notional amount	3
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Swedish Krona
Derivative
Total notional amount	9
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Other
Derivative
Total notional amount	9
Buy | Forward Contracts USD | Cash Flow Hedging | Australian Dollar
Derivative
Total notional amount	5
Buy | Forward Contracts USD | Cash Flow Hedging | Singapore Dollar
Derivative
Total notional amount	17
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Euro
Derivative
Total notional amount	33
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | British Pound
Derivative
Total notional amount	7
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Australian Dollar
Derivative
Total notional amount	4
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Japanese Yen
Derivative
Total notional amount	$ 14

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- 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
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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
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