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NET INCOME PER SHARE (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
Numerator:
Net income	$ 264	$ 199	$ 768	$ 497
Denominators:
Basic weighted-average shares	303	309	305	309
Potential common shares - stock options and other employee stock plans	3	3	2	3
Diluted weighted average shares	306	312	307	312
Anti-dilutive shares excluded from computation of dilutive earnings per share (in shares)	0	0	0	0

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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