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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Date the declared dividend will be paid, in CCYY-MM-DD format.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Date the dividend to be paid was declared, in CCYY-MM-DD format.

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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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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STOCKHOLDER"S EQUITY - Dividends (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	May 20, 2020	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Dividends Paid
Cash dividends paid per common share		$ 0.18	$ 0.164	$ 0.360	$ 0.328
Aggregate amount of cash dividends paid		$ 55	$ 52	$ 111	$ 104
Dividends Declared
Dividends Declared per share		$ 0.180	$ 0.164	$ 0.360	$ 0.328
Aggregate Dividends declared (Cash)		$ 55	$ 52	$ 111	$ 104
Subsequent Event [Member]
Dividends Declared
Date Dividends Declared	May 20, 2020
Dividends Declared per share	$ 0.18
Aggregate Dividends declared (Cash)	$ 56
Payment Date of Declared Dividends	Jul. 22, 2020
Dividends Declared Date of Record	Jun. 30, 2020