DERIVATIVES, Disclosures and derivative instrument aggregated notional amounts by currency and designations (Details) $ in Millions	Apr. 30, 2019 USD ($) contracts
Derivative [Line Items]
Derivative, Net Liability Position, Aggregate Fair Value	$ 3
Foreign Exchange Forward [Member] \| Cash Flow Hedging
Derivative [Line Items]
Number of Foreign Currency Derivatives Held \| contracts	198
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Number of Foreign Currency Derivatives Held \| contracts	63
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member] \| Sell \| British Pound
Derivative [Line Items]
Total notional amount	$ 55
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member] \| Sell \| Japanese Yen
Derivative [Line Items]
Total notional amount	38
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member] \| Buy
Derivative [Line Items]
Total notional amount	62
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member] \| Buy \| Euro
Derivative [Line Items]
Total notional amount	153
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member] \| Buy \| Singapore Dollar
Derivative [Line Items]
Total notional amount	0
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member] \| Buy \| Malaysian Ringgit
Derivative [Line Items]
Total notional amount	1
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member] \| Buy \| Other Currency [Member]
Derivative [Line Items]
Total notional amount	1
Foreign Exchange Forward [Member] \| Designated as Hedging Instruments \| Sell \| Japanese Yen \| Cash Flow Hedging
Derivative [Line Items]
Total notional amount	74
Foreign Exchange Forward [Member] \| Designated as Hedging Instruments \| Sell \| Other Currency [Member] \| Cash Flow Hedging
Derivative [Line Items]
Total notional amount	18
Foreign Exchange Forward [Member] \| Designated as Hedging Instruments \| Buy \| Cash Flow Hedging
Derivative [Line Items]
Total notional amount	21
Foreign Exchange Forward [Member] \| Designated as Hedging Instruments \| Buy \| Euro \| Cash Flow Hedging
Derivative [Line Items]
Total notional amount	14
Foreign Exchange Forward [Member] \| Designated as Hedging Instruments \| Buy \| British Pound \| Cash Flow Hedging
Derivative [Line Items]
Total notional amount	0
Foreign Exchange Forward [Member] \| Designated as Hedging Instruments \| Buy \| Singapore Dollar \| Cash Flow Hedging
Derivative [Line Items]
Total notional amount	15
Foreign Exchange Forward [Member] \| Designated as Hedging Instruments \| Buy \| Malaysian Ringgit \| Cash Flow Hedging
Derivative [Line Items]
Total notional amount	$ 84

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

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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+ References

No definition available.

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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 4H
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624258-113959

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

+ 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
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

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