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NET INCOME PER SHARE (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Numerator:
Net income	$ 191	$ 236	$ 877	$ 121
Denominators:
Basic weighted-average shares (in shares)	312	320	316	322
Potential common shares - stock options and other employee stock plans (in shares)	4	4	4	4
Diluted weighted average shares (in shares)	316	324	320	326

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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