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INCOME TAXES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Income Tax Disclosure [Abstract]
Effective income tax rate	16.20%	13.00%	12.30%	11.70%
Income tax expense - prior period adjustment	$ 12
Net Discrete Tax expense	14	10	3	14
Net Discrete Tax Benefit			$ (11)

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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