DERIVATIVES, Disclosures and derivative instrument aggregated notional amounts by currency and designations (Details) - Forward Contracts Buy/(Sell) [Member]
$ in Millions
Oct. 31, 2017
USD ($)
Designated as Hedging Instrument | Cash Flow Hedges | Buy | Australian Dollars  
Derivative [Line Items]  
Derivative, Notional Amount $ 4
Designated as Hedging Instrument | Cash Flow Hedges | Buy | Singapore, Dollars  
Derivative [Line Items]  
Derivative, Notional Amount 11
Designated as Hedging Instrument | Cash Flow Hedges | Sell  
Derivative [Line Items]  
Derivative, Notional Amount 221
Designated as Hedging Instrument | Cash Flow Hedges | Sell | Euro  
Derivative [Line Items]  
Derivative, Notional Amount 73
Designated as Hedging Instrument | Cash Flow Hedges | Sell | British Pounds  
Derivative [Line Items]  
Derivative, Notional Amount 42
Designated as Hedging Instrument | Cash Flow Hedges | Sell | Canadian Dollars  
Derivative [Line Items]  
Derivative, Notional Amount 28
Designated as Hedging Instrument | Cash Flow Hedges | Sell | Japanese Yen  
Derivative [Line Items]  
Derivative, Notional Amount 55
Designated as Hedging Instrument | Cash Flow Hedges | Sell | Korean Won  
Derivative [Line Items]  
Derivative, Notional Amount 38
Derivatives Not Designated as Hedging Instruments | Buy  
Derivative [Line Items]  
Derivative, Notional Amount 150
Derivatives Not Designated as Hedging Instruments | Buy | Euro  
Derivative [Line Items]  
Derivative, Notional Amount 85
Derivatives Not Designated as Hedging Instruments | Buy | British Pounds  
Derivative [Line Items]  
Derivative, Notional Amount 12
Derivatives Not Designated as Hedging Instruments | Buy | Canadian Dollars  
Derivative [Line Items]  
Derivative, Notional Amount 4
Derivatives Not Designated as Hedging Instruments | Buy | Australian Dollars  
Derivative [Line Items]  
Derivative, Notional Amount 16
Derivatives Not Designated as Hedging Instruments | Buy | Japanese Yen  
Derivative [Line Items]  
Derivative, Notional Amount 5
Derivatives Not Designated as Hedging Instruments | Buy | Danish Krone  
Derivative [Line Items]  
Derivative, Notional Amount 17
Derivatives Not Designated as Hedging Instruments | Buy | Swiss Franc  
Derivative [Line Items]  
Derivative, Notional Amount 34
Derivatives Not Designated as Hedging Instruments | Sell | Malaysian Ringgit  
Derivative [Line Items]  
Derivative, Notional Amount 3
Derivatives Not Designated as Hedging Instruments | Sell | Other Currency  
Derivative [Line Items]  
Derivative, Notional Amount $ 20