DERIVATIVES, Effect of derivative instruments on Consolidated Statement of Operations (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended			6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Sep. 10, 2012	Apr. 30, 2013 Derivatives Designated as Hedging Instruments [Member] Cost of Sales [Member]	Apr. 30, 2013 Derivatives Designated as Hedging Instruments [Member] Fair Value Hedges [Member] Interest Expense [Member]	Apr. 30, 2012 Derivatives Designated as Hedging Instruments [Member] Fair Value Hedges [Member] Interest Expense [Member]	Apr. 30, 2013 Derivatives Designated as Hedging Instruments [Member] Fair Value Hedges [Member] Interest Expense [Member]	Apr. 30, 2012 Derivatives Designated as Hedging Instruments [Member] Fair Value Hedges [Member] Interest Expense [Member]	Apr. 30, 2013 Derivatives Designated as Hedging Instruments [Member] Fair Value Hedges [Member] Interest Rate Swap Contracts [Member]	Apr. 30, 2012 Derivatives Designated as Hedging Instruments [Member] Fair Value Hedges [Member] Interest Rate Swap Contracts [Member]	Apr. 30, 2013 Derivatives Designated as Hedging Instruments [Member] Fair Value Hedges [Member] Interest Rate Swap Contracts [Member]	Apr. 30, 2012 Derivatives Designated as Hedging Instruments [Member] Fair Value Hedges [Member] Interest Rate Swap Contracts [Member]	Apr. 30, 2013 Derivatives Designated as Hedging Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contracts [Member] Accumulated Other Comprehensive Income [Member]	Apr. 30, 2012 Derivatives Designated as Hedging Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contracts [Member] Accumulated Other Comprehensive Income [Member]	Apr. 30, 2013 Derivatives Designated as Hedging Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contracts [Member] Accumulated Other Comprehensive Income [Member]	Apr. 30, 2012 Derivatives Designated as Hedging Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contracts [Member] Accumulated Other Comprehensive Income [Member]	Apr. 30, 2013 Derivatives Designated as Hedging Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contracts [Member] Cost of Sales [Member]	Apr. 30, 2012 Derivatives Designated as Hedging Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contracts [Member] Cost of Sales [Member]	Apr. 30, 2013 Derivatives Designated as Hedging Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contracts [Member] Cost of Sales [Member]	Apr. 30, 2012 Derivatives Designated as Hedging Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contracts [Member] Cost of Sales [Member]	Apr. 30, 2013 Derivatives Not Designated as Hedging Instruments [Member] Other income (expense) [Member]	Apr. 30, 2012 Derivatives Not Designated as Hedging Instruments [Member] Other income (expense) [Member]	Apr. 30, 2013 Derivatives Not Designated as Hedging Instruments [Member] Other income (expense) [Member]	Apr. 30, 2012 Derivatives Not Designated as Hedging Instruments [Member] Other income (expense) [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net			$ 0	$ 1	$ 0	$ 2	$ 0	$ 0	$ 0	$ 0									$ (5)	$ 6	$ (2)	$ (10)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	3										8	0	16	6
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		$ 11													$ 6	$ 4	$ 7	$ 5