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STOCKHOLDER"S EQUITY - Dividends (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	May. 18, 2016	Apr. 30, 2016	Apr. 30, 2015	Apr. 30, 2016	Apr. 30, 2015
Dividends Paid
Aggregate amount of cash dividends paid		$ 37	$ 33	$ 75	$ 67
Cash dividends paid per common share		$ 0.115	$ 0.100	$ 0.230	$ 0.200
Dividends Declared
Subsequent Events [Abstract]
Declaration date	May 18, 2016
Cash dividends declared per common share	$ 0.115
Aggregate amount of dividends declared	$ 37
Payment date	Jul. 27, 2016
Date of record	Jul. 05, 2016

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- Definition

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

+ References

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-Publisher FASB
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