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INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
Income Tax Disclosure
Provision (benefit) for income taxes	$ 63	$ 20	$ 144	$ 62
Effective income tax rate	19.30%	9.10%	15.80%	11.10%
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	$ 8	$ 16	$ 24	$ 16
Excess tax benefit from stock based compensation			$ (24)	$ (15)

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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