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STOCKHOLDER"S EQUITY - Dividends (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
Dividends Paid
Cash dividends paid per common share	$ 0.194	$ 0.180	$ 0.582	$ 0.540
Aggregate amount of cash dividends paid	$ 59	$ 56	$ 177	$ 167
Dividends Declared
Dividends Declared per share	$ 0.194	$ 0.18	$ 0.582	$ 0.54

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

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