FAIR VALUE MEASUREMENTS, Fair value of assets and liabilities measured on a recurring basis (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Millions, unless otherwise specified	Oct. 31, 2013	Oct. 31, 2012
Assets, Short-term [Abstract]
Cash equivalents (money market funds)	$ 1,968	$ 1,834
Derivative instruments (foreign exchange and interest rate swap contracts)	7	7
Assets, Long-term [Abstract]
Trading securities	51	50
Available-for-sale investments	25
Total assets measured at fair value	2,051	1,891
Liabilities, Short-term [Abstract]
Derivative instruments (foreign exchange contracts)	6	6
Liabilities, Long-term [Abstract]
Deferred compensation liability	51	48
Total liabilities measured at fair value	57	54
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets, Short-term [Abstract]
Cash equivalents (money market funds)	1,968	1,834
Derivative instruments (foreign exchange and interest rate swap contracts)	0	0
Assets, Long-term [Abstract]
Trading securities	51	50
Available-for-sale investments	25
Total assets measured at fair value	2,044	1,884
Liabilities, Short-term [Abstract]
Derivative instruments (foreign exchange contracts)	0	0
Liabilities, Long-term [Abstract]
Deferred compensation liability	0	0
Total liabilities measured at fair value	0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets, Short-term [Abstract]
Cash equivalents (money market funds)	0	0
Derivative instruments (foreign exchange and interest rate swap contracts)	7	7
Assets, Long-term [Abstract]
Trading securities	0	0
Available-for-sale investments	0
Total assets measured at fair value	7	7
Liabilities, Short-term [Abstract]
Derivative instruments (foreign exchange contracts)	6	6
Liabilities, Long-term [Abstract]
Deferred compensation liability	51	48
Total liabilities measured at fair value	57	54
Significant Unobservable Inputs (Level 3) [Member]
Assets, Short-term [Abstract]
Cash equivalents (money market funds)	0	0
Derivative instruments (foreign exchange and interest rate swap contracts)	0	0
Assets, Long-term [Abstract]
Trading securities	0	0
Available-for-sale investments	0
Total assets measured at fair value	0	0
Liabilities, Short-term [Abstract]
Derivative instruments (foreign exchange contracts)	0	0
Liabilities, Long-term [Abstract]
Deferred compensation liability	0	0
Total liabilities measured at fair value	$ 0	$ 0