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STOCKHOLDER"S EQUITY - Dividends (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	May 17, 2017	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Dividends Paid
Cash dividends paid per common share		$ 0.132	$ 0.115	$ 0.264	$ 0.230
Aggregate amount of cash dividends paid		$ 43	$ 37	$ 85	$ 75
Dividends Declared
Dividends Declared
Date dividends declared	May 17, 2017
Declared dividends per share	$ 0.132
Aggregate dividends to be paid	$ 42
Date dividends to be paid	Jul. 26, 2017
Dividends date of record	Jul. 03, 2017

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

+ References

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-Publisher FASB
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