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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of paid and unpaid common stock dividends declared with the form of settlement in stock.

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Date the dividend to be paid was declared, 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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 230
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-Section 45
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STOCKHOLDER"S EQUITY - Dividends (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	May 16, 2018	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Dividends Paid
Cash dividends paid per common share		$ 0.149	$ 0.132	$ 0.298	$ 0.264
Aggregate amount of cash dividends paid		$ 48	$ 43	$ 96	$ 85
Subsequent Event [Member]
Dividends Declared
Dividends - Date Declared	May 16, 2018
Dividends declared per share	$ 0.149
Aggregate dividends declared	$ 48
Date dividends to be paid	Jul. 25, 2018
Date of Record	Jul. 03, 2018