FAIR VALUE MEASUREMENTS, Fair value of assets and liabilities measured on a recurring basis (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Apr. 30, 2014
|
Apr. 30, 2013
|
Apr. 30, 2014
|
Apr. 30, 2013
|
Apr. 30, 2014
Fair Value, Measurements, Recurring [Member]
|
Oct. 31, 2013
Fair Value, Measurements, Recurring [Member]
|
Apr. 30, 2014
Fair Value, Measurements, Recurring [Member]
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
|
Oct. 31, 2013
Fair Value, Measurements, Recurring [Member]
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
|
Apr. 30, 2014
Fair Value, Measurements, Recurring [Member]
Significant Other Observable Inputs (Level 2) [Member]
|
Oct. 31, 2013
Fair Value, Measurements, Recurring [Member]
Significant Other Observable Inputs (Level 2) [Member]
|
Apr. 30, 2014
Fair Value, Measurements, Recurring [Member]
Significant Unobservable Inputs (Level 3) [Member]
|
Oct. 31, 2013
Fair Value, Measurements, Recurring [Member]
Significant Unobservable Inputs (Level 3) [Member]
|
|
Assets Short - term [Abstract] | ||||||||||||
Cash equivalents (money market funds) | $ 2,231 | $ 1,968 | $ 2,231 | $ 1,968 | $ 0 | $ 0 | $ 0 | $ 0 | ||||
Derivative instruments (foreign exchange contracts) | 4 | 7 | 0 | 0 | 4 | 7 | 0 | 0 | ||||
Assets, Long-term [Abstract] | ||||||||||||
Trading securities | 47 | 51 | 47 | 51 | 0 | 0 | 0 | 0 | ||||
Available-for-sale investments | 25 | 25 | 25 | 25 | 0 | 0 | 0 | 0 | ||||
Total assets measured at fair value | 2,307 | 2,051 | 2,303 | 2,044 | 4 | 7 | 0 | 0 | ||||
Liabilities, Short-term [Abstract] | ||||||||||||
Derivative instruments (foreign exchange contracts) | 4 | 6 | 0 | 0 | 4 | 6 | 0 | 0 | ||||
Liabilities Long-term [Abstract] | ||||||||||||
Deferred compensation liability | 47 | 51 | 0 | 0 | 47 | 51 | 0 | 0 | ||||
Total liabilities measured at fair value | 51 | 57 | 0 | 0 | 51 | 57 | 0 | 0 | ||||
Impairment of Investments | ||||||||||||
Impairment of Investments | $ 0 | $ 0 | $ 0 | $ 0 |