MARKETABLE SECURITIES (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
Oct. 31, 2012	Oct. 31, 2011
Contractual Maturities of Debt Securities, Amortized Cost
Amortized cost, due in one year or less	$ 813
Amortized cost, due after one through five years	366
Amortized cost, due after five through 10 years	85
Amortized cost, due after 10 years	64
Amortized cost, mortgage-backed securities	117
Amortized cost, Debt securities	1,445	770
Contractual Maturities of Debt Securities, Fair Value
Fair value, due in one year or less	813
Fair value, due after one through five years	370
Fair value, due after five through 10 years	93
Fair value, due after 10 years	72
Fair value, mortgage-backed securities	122
Fair value, Debt Securities	1,470.4	787.3
Proceeds from the sales of available-for-sale securities	$ 7	$ 2

Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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