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STOCKHOLDERS' EQUITY - Stock Repurchase Program (Details) - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
	Nov. 22, 2013	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016	May 28, 2015
Share repurchase program
Cost to repurchases shares of common stock under share repurchase program				$ 194	$ 294
2014 Share Repurchase Program
Share repurchase program
Share repurchase program authorized amount	$ 1,000
Maintain weighted average diluted shares count (in shares)	335.0
Cost to repurchases shares of common stock under share repurchase program					$ 98
Number of shares repurchased (in shares)					2.4
2015 Repurchase Program
Share repurchase program
Share repurchase program authorized amount						$ 1,140
Cost to repurchases shares of common stock under share repurchase program		$ 83	$ 94	$ 194	$ 196
Number of shares repurchased (in shares)		1.6	2.6	4.1	5.1
Remaining authorized repurchase amount under share repurchase program		$ 610		$ 610
Treasury Stock
Treasury Stock Retired
Number of treasury shares retired				294.2
Aggregate cost of treasury shares retired				$ 10,700
Retained Earnings
Treasury Stock Retired
Aggregate cost of treasury shares retired				6,700
Additional Paid-in Capital
Treasury Stock Retired
Aggregate cost of treasury shares retired				$ 4,000

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The cash outflow to reacquire common stock during the period.

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Amount of stock repurchase plan authorized.

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Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the cost method.

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