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NET INCOME PER SHARE (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Numerator:
Net income	$ 236	$ 175	$ 121	$ 507
Denominators:
Basic weighted-average shares (in shares)	320	321	322	322
Potential common shares - stock options and other employee stock plans (in shares)	4	5	4	3
Diluted weighted average shares (in shares)	324	326	326	325

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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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