DERIVATIVES- Foreign Exchange Forward Contracts (Details) $ in Millions	Jul. 31, 2020 USD ($) contracts
Foreign Exchange Forward | Derivatives Designated as Hedging Instrument | Cash Flow Hedging
Derivative
Number of foreign exchange forward contracts (in units) | contracts	261
Foreign Exchange Forward | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member]
Derivative
Number of foreign exchange forward contracts (in units) | contracts	3
Foreign Exchange Forward | Derivatives Not Designated as Hedging Instruments
Derivative
Number of foreign exchange forward contracts (in units) | contracts	191
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging
Derivative
Derivative, Notional Amount	$ 338
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Euro
Derivative
Derivative, Notional Amount	48
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | British Pound
Derivative
Derivative, Notional Amount	44
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Canadian Dollar
Derivative
Derivative, Notional Amount	40
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Japanese Yen
Derivative
Derivative, Notional Amount	88
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Korean Won
Derivative
Derivative, Notional Amount	60
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Chinese Yuan Renminbi
Derivative
Derivative, Notional Amount	77
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Swedish Krona
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Taiwan, New Dollars
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | India, Rupees
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member]
Derivative
Derivative, Notional Amount	90
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Euro
Derivative
Derivative, Notional Amount	90
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | British Pound
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Canadian Dollar
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Japanese Yen
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Korean Won
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Chinese Yuan Renminbi
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Swedish Krona
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Taiwan, New Dollars
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | India, Rupees
Derivative
Derivative, Notional Amount	0
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Korean Won
Derivative
Derivative, Notional Amount	37
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Chinese Yuan Renminbi
Derivative
Derivative, Notional Amount	64
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Swedish Krona
Derivative
Derivative, Notional Amount	9
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Taiwan, New Dollars
Derivative
Derivative, Notional Amount	10
Sell | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | India, Rupees
Derivative
Derivative, Notional Amount	9
Buy | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Singapore Dollar
Derivative
Derivative, Notional Amount	15
Buy | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Cash Flow Hedging | Other
Derivative
Derivative, Notional Amount	4
Buy | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Singapore Dollar
Derivative
Derivative, Notional Amount	0
Buy | Forward Contracts USD | Derivatives Designated as Hedging Instrument | Net Investment Hedging [Member] | Other
Derivative
Derivative, Notional Amount	0
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments
Derivative
Derivative, Notional Amount	50
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Euro
Derivative
Derivative, Notional Amount	107
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | British Pound
Derivative
Derivative, Notional Amount	6
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Canadian Dollar
Derivative
Derivative, Notional Amount	30
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Japanese Yen
Derivative
Derivative, Notional Amount	12
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Singapore Dollar
Derivative
Derivative, Notional Amount	20
Buy | Forward Contracts USD | Derivatives Not Designated as Hedging Instruments | Other
Derivative
Derivative, Notional Amount	$ 4